Broadwell (microarchitecture)

Broadwell is the fifth generation of the Intel Core Processor. It is Intel's codename for the 14 nanometer die shrink of its Haswell microarchitecture. It is a "tick" in Intel's tick–tock principle as the next step in semiconductor fabrication.[2][3][4] Like some of the previous tick-tock iterations, Broadwell did not completely replace the full range of CPUs from the previous microarchitecture (Haswell), as there were no low-end desktop CPUs based on Broadwell.[5]

Broadwell
General information
LaunchedOctober 27, 2014 (October 27, 2014)
DiscontinuedNovember 2018[1]
CPUID code0306D4h
Product code
  • 80658 (mainstream desktop/mobile, Xeon E3)
  • 80660 (Xeon E5)
  • 80669 (Xeon E7)
  • 80671 (enthusiast desktop)
  • 80674 (Xeon D)
  • 80682 (Xeon D, Hewitt Lake)
Cache
L1 cache64 KB per core
L2 cache256 KB per core
L3 cache2-6 MB (shared)
L4 cache128 MB of eDRAM (Iris Pro models only)
Architecture and classification
Technology node14 nm (Tri-Gate)
Architecturex86-64
MicroarchitectureHaswell
Instructionsx86, x86-64
Extensions
  • MMX, SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2, AVX, AVX2, TSX, FMA3
  • AES-NI, CLMUL, RDRAND, TXT
  • VT-x, VT-d
Physical specifications
Cores
    • 2–4 (mainstream)
    • 6–10 (enthusiast)
    • 4–24 (Xeon)
GPU(s)
  • HD 5300
  • HD 5500
  • HD 5700P
  • HD 6000
  • HD 6100
  • HD 6200
  • HD 6300P
  • HD Graphics
Socket(s)
  • LGA 1150
  • BGA 1364
  • LGA 2011-v3
Products, models, variants
Brand name(s)
History
Predecessor
SuccessorSkylake (Tock/Architecture)
Haswell and Broadwell feature a Fully Integrated Voltage Regulator.

Some of the processors based on the Broadwell microarchitecture are marketed as "5th-generation Core" i3, i5 and i7 processors. This moniker is however not used for marketing of the Broadwell-based Celeron, Pentium or Xeon chips. This microarchitecture also introduced the Core M processor branding.

Broadwell is the last Intel platform on which Windows 7 is supported by either Intel or Microsoft; however, third-party hardware vendors have offered limited Windows 7 support on more recent platforms.[6]

Broadwell's H and C variants are used in conjunction with Intel 9 Series chipsets (Z97, H97 and HM97),[7] in addition to retaining backward compatibility with some of the Intel 8 Series chipsets.

Design and variants

Broadwell has been launched in three major variants:[8]

  • BGA package:
    • Broadwell-Y: system on a chip (SoC); 4.5 W and 3.5 W thermal design power (TDP) classes, for tablets and certain ultrabook-class implementations. GT2 GPU was used, while maximum supported memory is 8 GB of LPDDR3-1600.[9] These were the first chips to roll out, in Q3/Q4 2014. At Computex 2014, Intel announced that these chips would be branded as Core M.[10] TSX instructions are disabled in this series of processors because a bug that cannot be fixed with a microcode update exists.[11]
    • Broadwell-U: SoC; two TDP classes – 15 W for 2+2 and 2+3 configurations (two cores with a GT2 or GT3 GPU) as well as 28 W for 2+3 configurations.[12] Designed to be used on motherboards with the PCH-LP chipset for Intel's ultrabook and NUC platforms. Maximum supported is up to 16 GB of DDR3 or LPDDR3 memory, with DDR3-1600 and LPDDR3-1867 as the maximum memory speeds. The 2+2 configuration is scheduled for Q4 2014, while the 2+3 is estimated for Q1 2015.[8] For Broadwell-U models with integrated 5x00 GPUs, die size is 82 mm2 with a total of 1.3 billion transistors, while for the models with 6100 and 6200 GPUs the die size is 133 mm2 with a total of 1.9 billion transistors.
    • Broadwell-H: 37 W and 47 W TDP classes, for motherboards with HM86, HM87, QM87 and the new HM97 chipsets for "all-in-one" systems, mini-ITX form-factor motherboards, and other small footprint formats. It was expected to come in two different variants, as single and dual chips; the dual chips (4 cores, 8 threads) would have GT3e and GT2 GPU, while a single chip (SoC; two cores, four threads) would have GT3e GPU. Maximum supported memory is 32 GB of DDR3-1600.[9] These are scheduled for Q2 2015.[8]
  • LGA 1150 socket:
    • Broadwell-DT: quad-core unlocked desktop version with GT3e integrated graphics (Iris Pro 6200) and 128 MB of eDRAM L4 cache, in a 65 W TDP class. Announced to be backward compatible with the LGA 1150 motherboards designed for Haswell processors.[13]
  • LGA 2011-1 socket:
    • Broadwell-EX: Brickland platform, for mission-critical servers. Intel QuickPath Interconnect (QPI) is expected to be updated to version 1.1, enabling seamless scaling beyond eight-socket systems. Maximum supported memory speeds are expected to be DDR3-1600 and DDR4-1866.[14][15] Up to 24 core and 48 threads, up to 60 MB of L3 cache and 32 PCI Express 3.0 lanes, with 115–165 W TDP.
  • LGA 2011-v3 socket:
    Intel i7 6800K
    • Broadwell-EP: to be marketed as Xeon E5-2600 v4 etc., while using the C610 Wellsburg chipset platform. Up to 22 cores and 44 threads, up to 55 MB of total cache and 40 PCI Express 3.0 lanes, with 55–160 W TDP classes. Maximum supported memory speed is quad-channel DDR4-2400.[16]
    • Broadwell-E: HEDT platform, for enthusiasts. Announced at Computex 2016, it was released in July that year. Consisting of four processors: the 6800K, 6850K, 6900K, and the deca-core 6950X, with clock speeds ranging from 3 GHz to 4 GHz as well as up to 25 MB of L3 cache.

Instruction set extensions

Broadwell introduces some instruction set architecture extensions:[17][18]

  • Intel ADX: ADOX and ADCX for improving performance of arbitrary-precision integer operations[19]
  • RDSEED for generating 16-, 32- or 64-bit random numbers from a thermal noise entropy stream, according to NIST SP 800-90B and 800-90C[20]
  • PREFETCHW instruction[20]
  • Supervisor Mode Access Prevention (SMAP) – optionally disallows access from kernel-space memory to user-space memory, a feature aimed at making it harder to exploit software bugs.[21]
  • Transactional Synchronization Extensions: This instruction set is reintroduced for all versions of Broadwell except for Broadwell-Y because a bug that cannot be fixed via microcode update in Broadwell-Y and all versions of Haswell except for the Haswell-EX variants has been fixed with a new CPU stepping level.[11] Erratum: In fact, among Broadwell i3, i5 and i7 CPUs, only four of them support TSX instructions (i7 5650U and 5600U, i5 5350U and 5300U); it is not even precised on Intel's website whether i5 5200U does support TSX instructions. (ark.intel.com/products/)

New features

Broadwell's Intel Quick Sync Video hardware video decoder adds VP8 hardware decoding[22] and encoding[23] support. It adds VP9 and HEVC 10-bit decoding support through the integrated GPU.[24] HEVC decode is achieved through a combination of the fixed function video decoder and shaders.[25] Also, it has two independent bit stream decoder (BSD) rings to process video commands on GT3 GPUs; this allows one BSD ring to process decoding and the other BSD ring to process encoding at the same time.[26]

Broadwell's integrated GPU supports on Windows Direct3D 11.2, OpenGL 4.4 (OpenGL 4.5 on Linux[27]) and OpenCL 2.0.[28][29][30] However, it is marketed as Direct3D-12-ready.[31] Broadwell-E introduced Intel Turbo Boost Max Technology 3.0.[32]

List of Broadwell processors

Desktop processors
Model Release date Price
(USD)		 Cores

(Threads)

 Base
clock rate
(GHz)		 Turbo
clock rate
(GHz)		 GPU L3
Cache		 Socket Memory
support		 TDP cTDP
Model Max GPU
clock rate
(GHz)		 DDR3 ECC Down
Core i5
5575R June 2, 2015 $244 4 (4) 2.8 3.3 Iris
6200		 1.05 4 MB LGA 1150 DDR3-1866
dual-channel		 No 65W —
5675C $276 3.1 3.6 1.10 37W
5675R $265 3.1 3.6 BGA 1364 —
Core i7
5775C June 2, 2015 $366 4 (8) 3.3 3.7 Iris
6200		 1.15 6 MB LGA 1150 DDR3-1866
dual-channel		 No 65W 37W
5775R $348 3.3 3.8 BGA 1364 —

"Broadwell-E" HEDT (14 nm)
Model Release date Price Cores
(Threads)		 Base Clock
(GHz)		 Turbo Clock GPU Smart
Cache		 Socket Memory
support		 Power
Single
core
(GHz)		 Turbo Boost
Max 3.0
(GHz)		 Model Max GPU
clock rate
(GHz)		 DDR4 ECC TDP Turbo
Core i7
6800K May 31, 2016 $434 6 (12) 3.4 3.6 3.8 — 15 MB LGA 2011-3 DDR4-2400
quad-channel		 No 140W
6850K $617 3.6 3.8 4.0
6900K $1089 8 (16) 3.2 3.7 4.0 20 MB
6950X $1723 10 (20) 3.0 3.5 4.0 25 MB

Embedded processors
Target
segment		 Cores
(threads)		 Processor branding
and model		 GPU model CPU frequency TDP Graphics clock rate L3
cache		 L4
cache[lower-alpha 1]		 Release date Price
(USD)		 Socket
Base Turbo Base Max
Performance 4 (8) Core i7 5775R Iris Pro 6200 3.3 GHz 3.8 GHz 65 W 300 MHz 1.15 GHz 6 MB 128 MB June 2, 2015 (2015-06-02)[33] $348 BGA
1364
Mainstream 4 (4) Core i5 5675R 3.1 GHz 3.6 GHz 1.1 GHz 4 MB $265
5575R 2.8 GHz 3.3 GHz 1.05 GHz $244
Server 4 (8) Xeon E3 1284Lv4 Iris Pro P6300 2.9 GHz 3.8 GHz 47 W 1.15 GHz 6 MB OEM
1278Lv4 2.0 GHz 3.3 GHz 800 MHz 1.0 GHz $546
1258Lv4 P5700 1.8 GHz 3.2 GHz 700 MHz — $481

Mobile processors
Target
segment		 Cores
(threads)		 Processor branding
and model		 GPU model Base
frequency		 Turbo frequency TDP cTDP down Graphics
clock rate		 L3
cache		 Release date Price
(USD)
Single Core Dual Core Base Max
Performance 4 (8) Core i7 5950HQ Iris Pro 6200 2.9 GHz 3.7 GHz — 47 W — 300 MHz 1.15 GHz 6 MB June 2015 $623
5850HQ Iris Pro 6200 2.7 GHz 3.6 GHz — 47 W — 300 MHz 1.1 GHz 6 MB June 2015 $434
5750HQ Iris Pro 6200 2.5 GHz 3.4 GHz — 47 W 600 MHz / 37 W 300 MHz 1.05 GHz 6 MB June 2015 $434
5700HQ HD 5600 2.7 GHz 3.5 GHz — 47 W 600 MHz / 37 W 300 MHz 1.05 GHz 6 MB June 2015 $378
Mainstream 2 (4) 5650U HD 6000 2.2 GHz 3.2 GHz 3.1 GHz 15 W 600 MHz / 9.5 W 300 MHz 1 GHz 4 MB Q1 2015 $426
5600U HD 5500 2.6 GHz 3.2 GHz 3.1 GHz 15 W 600 MHz / 7.5 W 300 MHz 950 MHz 4 MB Q1 2015 $393
5557U Iris 6100 3.1 GHz 3.4 GHz 3.4 GHz 28 W N/A / 23 W 300 MHz 1.1 GHz 4 MB Q1 2015 $426
5550U HD 6000 2.0 GHz 3.0 GHz 2.9 GHz 15 W 600 MHz / 9.5 W 300 MHz 1 GHz 4 MB Q1 2015 $426
5500U HD 5500 2.4 GHz 3.0 GHz 2.9 GHz 15 W 600 MHz / 7.5 W 300 MHz 950 MHz 4 MB Q1 2015 $393
Core i5 5350H Iris Pro 6200 3.1 GHz 3.5 GHz — 47 W — 300 MHz 1.05 GHz 4 MB June 2015 $289
5350U HD 6000 1.8 GHz 2.9 GHz 2.7 GHz 15 W 600 MHz / 9.5 W 300 MHz 1 GHz 3 MB Q1 2015 $315
5300U HD 5500 2.3 GHz 2.9 GHz 2.7 GHz 15 W 600 MHz / 7.5 W 300 MHz 900 MHz 3 MB Q1 2015 $281
5287U Iris 6100 2.9 GHz 3.3 GHz 3.3 GHz 28 W 600 MHz / 23 W 300 MHz 1.1 GHz 3 MB Q1 2015 $315
5257U Iris 6100 2.7 GHz 3.1 GHz 3.1 GHz 28 W 600 MHz / 23 W 300 MHz 1.05 GHz 3 MB Q1 2015 $315
5250U HD 6000 1.6 GHz 2.7 GHz 2.5 GHz 15 W 600 MHz / 9.5 W 300 MHz 950 MHz 3 MB Q1 2015 $315
5200U HD 5500 2.2 GHz 2.7 GHz 2.5 GHz 15 W 600 MHz / 7.5 W 300 MHz 900 MHz 3 MB February 2015[34] $281
Core i3 5157U Iris 6100 2.5 GHz — — 28 W 600 MHz / 23 W 300 MHz 1 GHz 3 MB January 2015 $315
5020U HD 5500 2.2 GHz — — 15 W 600 MHz / 10 W 300 MHz 900 MHz 3 MB March 2015 $281
5015U HD 5500 2.1 GHz — — 15 W 600 MHz / 10 W 300 MHz 850 MHz 3 MB March 2015 $275
5010U HD 5500 2.1 GHz — — 15 W 600 MHz / 10 W 300 MHz 900 MHz 3 MB January 2015 $281
5005U HD 5500 2.0 GHz — — 15 W 600 MHz / 10 W 300 MHz 850 MHz 3 MB January 2015 $275
Pentium 3825U HD Graphics 1.9 GHz — — 15 W 600 MHz / 10 W 300 MHz 850 MHz 2 MB March 2015
2 (2) 3805U HD Graphics 1.9 GHz — — 15 W 600 MHz / 10 W 100 MHz 800 MHz 2 MB Q1 2015 $161
Celeron 3755U HD Graphics 1.7 GHz — — 15 W 600 MHz / 10 W 100 MHz 800 MHz 2 MB Q1 2015 $107
3205U HD Graphics 1.5 GHz — — 15 W 600 MHz / 10 W 100 MHz 800 MHz 2 MB Q1 2015 $107
Target
segment		 Cores
(Threads)		 Processor
Branding & Model		 GPU Model Programmable TDP[35]: 69–72  CPU Turbo Graphics Clock rate L3
Cache		 Release
Date		 Price
(USD)
SDP[36][37]: 71  cTDP down[a] Nominal TDP[b] cTDP up[c] 1-core Normal Turbo
Mainstream 2 (4)[38] Core M (vPro) 5Y71 HD 5300 
(GT2)[39]		 3.5 W 3.5 W / 600 MHz 4.5 W / 1.2 GHz 6 W / 1.4 GHz 2.9 GHz 300 MHz 900 MHz 4 MB October 27, 2014 (2014-10-27) $281
5Y70 — — 4.5 W / 1.1 GHz — 2.6 GHz 100 MHz 850 MHz September 5, 2014 (2014-09-05)
Core M 5Y51 3.5 W 3.5 W / 600 MHz 6 W / 1.3 GHz 300 MHz 900 MHz October 27, 2014 (2014-10-27)
5Y31 4.5 W / 900 MHz 6 W / 1.1 GHz 2.4 GHz 850 MHz
5Y10c 4.5 W / 800 MHz 6 W / 1 GHz 2.0 GHz 800 MHz
5Y10a — — — 100 MHz September 5, 2014 (2014-09-05)
5Y10[40] 4 W / ? MHz
  1. When a cooler or quieter mode of operation is desired, this mode specifies a lower TDP and lower guaranteed frequency versus the nominal mode.[35]: 71–72 
  2. This is the processor's rated frequency and TDP.[35]: 71–72 
  3. When extra cooling is available, this mode specifies a higher TDP and higher guaranteed frequency versus the nominal mode.[35]: 71–72 

Server processors
Target
segment		 Cores
(threads)		 Processor branding
and model		 Base
frequency		 Turbo
frequency		 TDP Socket Memory L3
cache		 Release date Price
(USD)
Single core All cores Type Channel
SoC server 16 (32) Xeon D D-1587 1.7 GHz — 2.3 GHz 65 W FCBGA 1667 DDR4
up to
128 GB
w/ ECC
support		 Dual 24 MB Q1 2016 $1754
D-1577 1.3 GHz 2.1 GHz 45 W Q1 2016 $1477
D-1571 1.3 GHz 2.1 GHz Q1 2016 $1222
12 (24) D-1567 2.1 GHz 2.7 GHz 65 W 18 MB Q1 2016 $1299
D-1559 1.5 GHz 2.1 GHz 45 W Q2 2016 $883
D-1557 1.5 GHz 2.1 GHz Q1 2016 $844
8 (16) D-1553N 2.3 GHz 2.7 GHz 65 W 12 MB Q3 2017 $855
D-1548 2.0 GHz 2.6 GHz 45 W Q4 2015 $675
D-1543N 1.9 GHz 2.4 GHz Q3 2017 $652
D-1541 2.1 GHz 2.7 GHz Q4 2015 $581
D-1540 2.0 GHz 2.6 GHz Q1 2015 $581
D-1539 1.6 GHz 2.2 GHz 35 W Q2 2016 $590
D-1537 1.7 GHz 2.3 GHz Q4 2015 $571
6 (12) D-1533N 2.1 GHz 2.7 GHz 45 W 9 MB Q3 2017 $470
D-1531 2.2 GHz 2.7 GHz Q4 2015 $348
4 (8) D-1529 1.3 GHz 1.3 GHz 20 W 6 MB Q2 2016 $324
6 (12) D-1528 1.9 GHz 2.5 GHz 35 W 9 MB Q4 2015 $389
4 (8) D-1527 2.2 GHz 2.7 GHz 6 MB Q4 2015 $259
D-1523N 2.0 GHz 2.6 GHz 45 W Q3 2017 $256
D-1521 2.4 GHz 2.7 GHz Q4 2015 $199
D-1520 2.2 GHz 2.6 GHz Q1 2015 $199
D-1518 2.2 GHz 2.2 GHz 35 W Q4 2015 $234
D-1513N 1.6 GHz 2.2 GHz Q3 2017 $192
Pentium D D1519 1.5 GHz 2.1 GHz 25 W Q2 2016 $200
D1517 1.6 GHz 2.2 GHz Q4 2015 $194
2 (2) D1509 1.5 GHz TBA 19 W 3 MB $156
2 (4) D1508 2.2 GHz 2.6 GHz 25 W $129
2 (2) D1507 1.2 GHz TBA 20 W $103
Target
segment		 Cores
(threads)		 Processor
branding and model		 GPU
model		 CPU
clock rate		 Graphics
clock rate		 L3
cache		 TDP Release
date		 Release
price
(USD)
tray / box		 Motherboard
Normal Turbo Normal Turbo Socket Interface Memory
Server 4 (8) Xeon E3 v4 1285v4 Iris Pro P6300 3.5 GHz 3.8 GHz 300 MHz 1.15 GHz 6 MB 95 W Q2 15 $556 / — LGA
1150		 DMI 2.0
PCIe 3.0		 DDR3 or DDR3L
1333/1600/1866
with ECC
1285Lv4 3.4 GHz 65 W $445 / —
1265Lv4 2.3 GHz 3.3 GHz 1.05 GHz 35 W $417 / —
Target
segment		 Cores
(threads)		 Processor
branding and model		 CPU clock rate L3
cache		 TDP Release
date		 Release
price		 Motherboard
Normal Turbo Socket Interface Memory
Server
(dual socket)		 22 (44) Xeon E5 v4 2699Av4 2.4 3.6 55 MB 145W Q2 16 $4938 LGA
2011-3		 PCIe 3.0 DDR4
1600/1866/2133/2400
with ECC
22 (44) 2699v4 2.2 GHz 3.6 GHz 55 MB 145 W Q1 16 $4115
20 (40) 2698v4 2.2 GHz 3.6 GHz 50 MB 135 W $3226
18 (36) 2697v4 2.3 GHz 3.6 GHz 45 MB 145 W $2702
16 (32) 2697Av4 2.6 GHz 3.6 GHz 40 MB 145 W $2891
18 (36) 2695v4 2.1 GHz 3.3 GHz 45 MB 120 W $2424
14 (28) 2690v4 2.6 GHz 3.5 GHz 35 MB 135 W $2090
10 (20) 2689v4 3.1 GHz 3.8 GHz 25 MB 165 W $2723
12 (24) 2687Wv4 3.0 GHz 3.5 GHz 30 MB 160 W $2141
16 (32) 2683v4 2.1 GHz 3.0 GHz 40 MB 120 W $1846
14 (28) 2680v4 2.4 GHz 3.3 GHz 35 MB 120 W $1745
8 (16) 2667v4 3.2 GHz 3.6 GHz 25 MB 135 W $2057
14 (28) 2660v4 2.0 GHz 3.2 GHz 35 MB 105 W $1445
2658v4 2.3 GHz 2.8 GHz $1832
12 (24) 2650v4 2.2 GHz 2.9 GHz 30 MB 105 W $1166 - $1171
14 (28) 2650Lv4 1.7 GHz 2.5 GHz 35 MB 65 W $1329
2648Lv4 1.8 GHz 2.5 GHz 75 W $1544
6 (12) 2643v4 3.4 GHz 3.7 GHz 20 MB 135 W $1552
10 (20) 2640v4 2.4 GHz 3.4 GHz 25 MB 90 W $939 DDR4
1600/1866/2133
with ECC
4 (8) 2637v4 3.5 GHz 3.7 GHz 15 MB 135 W $996 DDR4
1600/1866/2133/2400
with ECC
10 (20) 2630v4 2.2 GHz 3.1 GHz 25 MB 85 W $667 DDR4
1600/1866/2133
with ECC
2630Lv4 1.8 GHz 2.9 GHz 55 W $612
12 (24) 2628Lv4 1.9 GHz 2.4 GHz 30 MB 75 W $1364
4 (8) 2623v4 2.6 GHz 3.2 GHz 10 MB 85 W $444
8 (16) 2620v4 2.1 GHz 3.0 GHz 20 MB $417
10 (20) 2618Lv4 2.2 GHz 3.2 GHz 25 MB 75 W $779
8 (8) 2609v4 1.7 GHz 1.7 GHz 20 MB 85 W $306 - $310 DDR4
1600/1866
with ECC
8 (16) 2608Lv4 1.6 GHz 1.7 GHz 50 W $363
6 (6) 2603v4 1.7 GHz 1.7 GHz 15 MB 85 W $213
Server
(single socket)		 8 (16) 1680v4 3.4 GHz 4.0 GHz 20 MB 140 W Q2 16 $1723 DDR4
1600/1866/2133/2400
with ECC
1660v4 3.2 GHz 3.8 GHz $1113
6 (12) 1650v4 3.6 GHz 4.0 GHz 15 MB $617 - $621
4 (8) 1630v4 3.7 GHz 4.0 GHz 10 MB $406
1620v4 3.5 GHz 3.8 GHz $294 - $297

Roadmap and history

On September 10, 2013, Intel showcased the Broadwell 14 nm processor in a demonstration at IDF. Intel CEO Brian Krzanich claimed that the chip would allow systems to provide a 30 percent improvement in power use over the Haswell chips released in mid-2013. Krzanich also claimed that the chips would ship by the end of 2013;[41] however, the shipment was delayed due to low yields from Intel's 14 nm process.[42]

On October 21, 2013, a leaked Intel roadmap indicated a late 2014 or early 2015 release of the K-series Broadwell on the LGA 1150 platform, in parallel with the previously announced Haswell refresh. This would coincide with the release of Intel's 9-series chipset, which would be required for Broadwell processors due to a change in power specifications for its LGA 1150 socket.[43][44]

On May 18, 2014, Reuters quoted Intel's CEO promising that Broadwell-based PCs would be on shelves for the holiday season, but probably not for the back-to-school shopping.[45]

Mobile CPUs were expected in Q4 2014 and high-performance quad-core CPUs in 2015. The mobile CPUs would benefit from the reduced energy consumption of the die shrink.[46][47]

On June 18, 2014, Intel told CNET that while some specialized Broadwell-based products would be out in Q4 2014, "broader availability" (including mobile CPUs) would only happen in 2015.[48]

As of July 2014, Broadwell CPUs were available to Intel's hardware partners in sample quantities.[49] Intel was expected to release 17 Broadwell U series family microprocessors at CES 2015.[50] Also, according to a leak posted on vr-zone, Broadwell-E chips would be available in 2016.[51]

On August 11, 2014, Intel unveiled formally its 14 nm manufacturing process, and indicated that mobile variants of the process would be known as Core M products. Additionally, Core M products were announced to be shipping during the end of 2014, with desktop variants shipping shortly after.[52]

With Broadwell, Intel focused mainly on laptops, miniature desktops, and all-in-one systems.[53] This left traditional desktop users with no new socketed CPU options beyond fourth-generation Haswell, which first arrived in 2013. Even though the company finally introduced two Broadwell desktop chips in the summer of 2015, it launched its high-end sixth-generation Skylake CPUs very shortly thereafter. In September 2015, Kirk Skaugen, senior vice president and general manager of Intel's Client Computing Group, admitted that skipping desktops with Broadwell was a poor decision. Between the end-of-life for Windows XP in 2014 and the lack of new desktop chips, Intel had not given desktop PC users any good reasons to upgrade in 2015.[53]

Releases

On September 5, 2014, Intel launched the first three Broadwell-based processors that belong to the low-TDP Core M family, Core M 5Y10, Core M 5Y10a and Core M 5Y70.[54]

On October 9, 2014, the first laptop with Broadwell Intel Core M 5Y70 CPU, Lenovo Yoga 3 Pro, was launched.[55]

On October 31, 2014, four more Broadwell based CPUs were launched belonging to Core M Family, increasing the number of launched Broadwell CPUs to seven.[56]

On January 5, 2015, 17 additional Broadwell laptop CPUs were launched for the Celeron, Pentium and Core i3, i5 and i7 series.[57]

On March 31, 2016, Intel officially launched 14 nm Broadwell-EP Xeon E5 V4 CPUs.[58]

On May 30, 2016, Intel officially launched 14 nm Broadwell-E Core i7 69xx/68xx processor family.

See also
  • List of Intel CPU microarchitectures
  • List of Intel Core M microprocessors

Notes
  1. Implemented as eDRAM and serving primarily to increase the performance of integrated GPU, while being shared with the CPU.

References
  1. Perillo, Ron (November 9, 2017). "Intel Broadwell-E CPUs Officially Discontinued". eTeknix. Retrieved July 29, 2020.
  2. "22nm Details" (PDF) (presentation). Intel. Retrieved January 4, 2012.
  3. Demerjian, Charlie (March 31, 2011). "After Intel's Haswell comes Broadwell". SemiAccurate. Retrieved January 4, 2012.
  4. Broekhuijsen, Niels (May 22, 2014). "Intel Broadwell CPUs to Arrive Later This Year". Tom's Hardware. Archived from the original on July 27, 2014. Retrieved May 31, 2014.
  5. "Lower-end desktop CPUs won't get Broadwell, will need to wait for Skylake". Ars Technica. September 5, 2014.
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