Haswell (microarchitecture)

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Haswell
Haswell Chip.jpg
A Haswell wafer with a pin for scale
CPUID code 0306C3h
Product code 80646 (desktop)
80647 (mobile)
Cores 2–4
6–8 (Enthusiast)
8+ (Xeon)
L1 cache 64 KB per core
L2 cache 256 KB per core
L3 cache MB to 8 MB shared
L4 cache n/a or 128 MB (Iris Pro models)
GPU HD Graphics 4200, 4400,
4600, 5000, Iris 5100
or Iris Pro 5200
200 MHz to 1.3 GHz
Predecessor Sandy Bridge (tock)
Ivy Bridge (tick)
Successor Broadwell (tick)
Skylake (tock)
Socket(s)
Brand name(s)
  • Core i3 Series
  • Core i5 Series
  • Core i7 Series

Haswell is the codename for a processor microarchitecture developed by Intel as the successor to the Ivy Bridge architecture.[1] It uses the 22 nm process.[2] Intel officially announced CPUs with this microarchitecture on June 4, 2013 at Computex Taipei 2013.[3] With Haswell, Intel introduced a low-power processor designed for convertible or "hybrid" Ultrabooks, having the Y suffix. Intel demonstrated a working Haswell chip at the 2011 Intel Developer Forum.[4]

Haswell CPUs are used in conjunction with the Intel 8 Series chipsets.

Design[edit]

The Haswell architecture is specifically designed[5] to optimize the power savings and performance benefits from the move to FinFET (non-planar, "3D") transistors on the improved 22 nm process node.[6]

Haswell has been launched in three major forms:[7]

  1. Desktop version (LGA 1150 socket): Haswell-DT
  2. Mobile/Laptop version (PGA socket): Haswell-MB
  3. BGA version:
    • 47 W and 57 W TDP classes: Haswell-H (For "All-in-one" systems, Mini-ITX form factor motherboards, and other small footprint formats.)
    • 13.5 W and 15 W TDP classes (MCP): Haswell-ULT (For Intel's UltraBook platform.)
    • 10 W TDP class (SoC): Haswell-ULX (For tablets and certain UltraBook-class implementations.)

Notes[edit]

  • ULT = Ultra Low TDP; ULX = Ultra Low eXtreme TDP
  • Only certain quad-core variants and BGA R-series SKUs will receive GT3e (Intel Iris Pro 5200) integrated graphics. All other models will get GT3 (Intel HD 5000 or Intel Iris 5100), GT2 (Intel HD 4200, 4400, 4600, P4600 or P4700) or GT1 (Intel HD Graphics) integrated graphics.[8] See also Intel HD and Iris Graphics for more details.
  • Due to low power requirements of tablet and UltraBook platforms, Haswell-ULT and Haswell-ULX will only be available in dual-core. All other versions will be available in dual- or quad-core variants.

Performance[edit]

Compared to Ivy Bridge:

  • Approximately 8% better vector processing performance.[9]
  • Up to 6% faster single-threaded performance.
  • 6% faster multi-threaded performance.
  • Desktop variants of Haswell draw between 8% and 23% more power under load than Ivy Bridge.[9][10][11]
  • A 6% increase in sequential CPU performance (eight execution ports per core versus six).[9]
  • Up to 20% performance increase over the integrated HD4000 GPU (Haswell HD4600 vs Ivy Bridge's built-in Intel HD4000).[9]
  • Total performance improvement on average is about 3%.[9]
  • Around 15 °C hotter than Ivy Bridge, while clock frequencies of 4.6 GHz are achievable.[12][13][14][15][16][17]

Technology[edit]

Features carried over from Ivy Bridge[edit]

New features[edit]

Translation lookaside buffer sizes[49][50]
Cache Page Size
Name Level 4 KB 2 MB 1 GB
DTLB 1st 64 32 4
ITLB 1st 128 8 / logical core none
STLB 2nd 512 none

Expected server processors features[edit]

  • Release not before end of 2014.[citation needed]
  • Haswell-EP is to be marketed as Xeon E5 2600 v3 series, having up to 14 cores.[51]
  • Haswell-EX with up to 18–20 cores.[citation needed]
  • A new cache design.
  • Up to 35 MB total unified cache (Last Level Cache (LLC)) for Haswell-EP[52] and up to 40 MB for Haswell-EX.
  • It is likely that LGA 2011-3 will replace LGA 2011 for Haswell EP; while the new socket has the same number of pins, it is incompatible electrically and thus will be keyed differently.[53][54][55]
  • The already launched Xeon E3 v3 Haswells will get a refresh in Spring 2014.[56] These will also get a refreshed chipset, in the form of Intel C220 series PCH.[57]
  • TDP up to 160 W for Haswell-EP.[58]

Haswell refresh[edit]

According to Intel roadmaps, Broadwell would not be coming to desktops in mid-2014 if at all. Instead, Intel scheduled a refresh of Haswell, simply titled "Haswell refresh", for the middle of the year, which offers modest clock bumps over existing parts. These new parts would also be compatible with the new Intel's 9 Series chipsets (Z97 and H97). Later it was also revealed that overclockable parts, codenamed "Devil's Canyon", would employ a new and improved thermal interface material (TIM), which would improve their overclocking potential as something that had been problematic since the introduction of Ivy Bridge. Intel also announced plans to mark the occasion by releasing the new Pentium Anniversary Edition, which would include an unlocked version.[59]

List of Haswell processors[edit]

Desktop processors[edit]

Intel Haswell i7-4771 CPU, on top of its original packaging with an OEM fan-cooled heatsink
  • Intel HD Graphics in following variants:
    • R-series desktop processors feature Intel Iris Pro 5200 graphics (GT3e).[61]
    • All other currently known i3, i5 and i7 desktop processors include Intel HD 4600 graphics (GT2).[62]
    • The exceptions are processors 4130 and 4130T, which include HD 4400 graphics (GT2).
    • Celeron and Pentium processors contain Intel HD Graphics (GT1).
  • Haswell-based desktop Celerons are planned for the first quarter of 2014.[63]

List of announced desktop processors is as follows:

Target
segment
Cores
(Threads)
Processor
Branding & Model
GPU Model CPU Clock rate Graphics Clock rate L3
Cache
GPU
eDRAM
TDP Release
Date
Release
price
(USD)
Motherboard
Normal Turbo Normal Turbo Socket Interface Memory
Enthusiast / High-End 8 (16) Core i7
Extreme
5960X[64] N/A 3.0 Ghz  ? N/A N/A 20 MB N/A 140 W Q2 2014 $999 LGA 2011-3 DMI 2.0
PCIe 3.0[a]
Up to quad
channel
DDR4-2133
6 (12) Core i7 5930K[65] N/A  ?  ? N/A N/A 15 MB  ?
Performance 4 (8) 4771 HD 4600 (GT2) 3.5 GHz 3.9 GHz 350 MHz[66] 1.2 GHz 8 MB 84 W September 1, 2013 (2013-09-01) $320 LGA
1150
Up to dual
channel
DDR3-1600[67]
4770K 1.25 GHz June 2, 2013 (2013-06-02)[68] $339
4770 3.4 GHz 1.2 GHz $303
4770S 3.1 GHz 65 W
4770R Iris Pro 5200 (GT3e) 3.2 GHz 200 MHz 1.3 GHz 6 MB 128 MB $392 BGA1364
4770T HD 4600 (GT2) 2.5 GHz 3.7 GHz 350 MHz[66] 1.2 GHz 8 MB N/A 45 W $303 LGA
1150
4770TE 2.3 GHz 3.3 GHz 1 GHz
4765T 2.0 GHz 3.0 GHz 1.2 GHz 35 W
Mainstream 4 (4) Core i5 4670K 3.4 GHz 3.8 GHz 6 MB 84 W $242
4670 $213
4670S 3.1 GHz 65 W
4670R Iris Pro 5200 (GT3e) 3.0 GHz 3.7 GHz 200 MHz 1.3 GHz 4 MB 128 MB $310 BGA1364
4670T HD 4600 (GT2) 2.3 GHz 3.3 GHz 350 MHz[66] 1.2 GHz 6 MB N/A 45 W $213 LGA
1150
4570 3.2 GHz 3.6 GHz 1.15 GHz 84 W $192
4570S 2.9 GHz 65 W
4570R Iris Pro 5200 (GT3e) 2.7 GHz 3.2 GHz 200 MHz 4 MB 128 MB $288 BGA1364
2 (4) 4570T HD 4600 (GT2) 2.9 GHz 3.6 GHz N/A 35 W $192 LGA
1150
4570TE 2.7 GHz 3.3 GHz 350 MHz[66] 1 GHz
4 (4) 4460T 1.9 GHz 2.7 GHz 1.1 GHz 6 MB Q2 2014 $182
4440 3.1 GHz 3.3 GHz 84 W September 1, 2013 (2013-09-01)
4440S 2.8 GHz 65 W
4430 3.0 GHz 3.2 GHz 84 W June 2, 2013 (2013-06-02)[68]
4430S 2.7 GHz 65 W
2 (4) Core i3 4340 3.6 GHz N/A 1.15 GHz 4 MB 54 W September 1, 2013 (2013-09-01) $149
4330 3.5 GHz $138
4330T 3.0 GHz 200 MHz 35 W
4330TE 2.4 GHz 350 MHz 1 GHz $122
4130 HD 4400 (GT2) 3.4 GHz 1.15 GHz 3 MB 54 W
4130T 2.9 GHz 200 MHz 35 W
2 (2) Pentium G3430 HD Graphics 3.3 GHz 350 MHz 1.1 GHz 53 W $86
G3420 3.2 GHz 1.15 GHz $75
G3420T 2.7 GHz 200 MHz 1.1 GHz 35 W
G3320TE 2.3 GHz 350 MHz 1 GHz $70
G3220 3.0 GHz 1.1 GHz 53 W $64 Up to dual
channel
DDR3-1333
G3220T 2.6 GHz 200 MHz 35 W
Celeron G1830 2.8 GHz 350 MHz 1.05 GHz 2 MB 53 W December 1, 2013 (2013-12-01) $52
G1820 2.7 GHz $42
G1820T 2.4 GHz 200 MHz 35 W
G1820TE 2.2 GHz 1 GHz
  1. Requires a compatible motherboard.

Suffixes to denote:

  • K – Unlocked (adjustable CPU multiplier up to 63x)
  • S – Performance-optimized lifestyle (low power with 65 W TDP)
  • T – Power-optimized lifestyle (ultra low power with 35–45 W TDP)
  • R – BGA packaging / High-performance GPU (currently Iris Pro 5200 (GT3e))

Server processors[edit]

List of launched server processors:

Target
segment
Cores
(Threads)
Processor
Branding & Model
GPU Model CPU Clock rate Graphics Clock rate L3
Cache
GPU
eDRAM
TDP Release
Date
Release
price
(USD)
tray / box
Motherboard
Normal Turbo Normal Turbo Socket Interface Memory
Server 4 (8) Xeon E3 1285v3 HD P4700 (GT2) 3.6 GHz 4.0 GHz 350 MHz 1.3 GHz 8 MB N/A 84 W June 2, 2013 (2013-06-02) $662 / — LGA
1150
DMI 2.0
PCIe 3.0[a]
up to dual
channel
DDR3-1600
w/ ECC
1285Lv3 3.1 GHz 3.9 GHz 1.25 GHz 65 W $774 / —
1284Lv3 Iris Pro 5200 (GT3e) 1.8 GHz 3.2 GHz 750 MHz 1 GHz 6 MB 128 MB 47 W February 18, 2014 (2014-02-18) OEM BGA
1364
1280v3 N/A 3.6 GHz 4.0 GHz N/A 8 MB N/A 82 W June 2, 2013 (2013-06-02) $612 / — LGA
1150
1275v3 HD P4600 (GT2) 3.5 GHz 3.9 GHz 350 MHz 1.25 GHz 84 W $339 / $350
1270v3 N/A N/A 80 W $328 / —
1268Lv3 HD P4600 (GT2) 2.3 GHz 3.3 GHz 350 MHz 1 GHz 45 W $310 / —
1265Lv3 HD (GT1) 2.5 GHz 3.7 GHz 1.2 GHz $294 / —
1245v3 HD P4600 (GT2) 3.4 GHz 3.8 GHz 84 W $276 / $287
1240v3 N/A N/A 80 W $262 / $273
1230v3 3.3 GHz 3.7 GHz $240 / $250
1230Lv3 1.8 GHz 2.8 GHz 25 W $250 / —
4 (4) 1225v3 HD P4600 (GT2) 3.2 GHz 3.6 GHz 350 MHz 1.2 GHz 84 W $213 / $224
1220v3 N/A 3.1 GHz 3.5 GHz N/A 80 W $193 / —
2 (4) 1220Lv3 1.1 GHz 1.5 GHz 4 MB 13 W September 1, 2013 (2013-09-01)
  1. Requires a compatible motherboard.

Suffixes to denote:

  • L – Low power

Mobile processors[edit]

List of announced mobile processors as follows:

Target
segment
Cores
(Threads)
Processor
Branding & Model
GPU Model Programmable TDP[70]:69–72 CPU Turbo Graphics Clock rate L3
Cache
GPU
eDRAM
Release
Date
Price
(USD)
SDP[71][72]:71 cTDP down[a] Nominal TDP[b] cTDP up[c] 1-core Normal Turbo
Performance  4 (8)  Core i7 4940MX HD 4600 (GT2) N/A N/A 57 W / 3.1 GHz 65 W / 3.8 GHz  4.0 GHz 400 MHz 1350 MHz 8 MB N/A January 21, 2014 (2014-01-21)[73] $1096
4930MX 57 W / 3.0 GHz 65 W / 3.7 GHz  3.9 GHz June 2, 2013 (2013-06-02)[74]
4960HQ Iris Pro 5200 (GT3e) N/A 47 W / 2.6 GHz 55 W / 3.6 GHz  3.8 GHz 200 MHz 1300 MHz 6 MB 128 MB[35] September 1, 2013 (2013-09-01)[75] $657
4950HQ 47 W / 2.4 GHz 55 W / 3.4 GHz  3.6 GHz June 2, 2013 (2013-06-02)[74]
4910MQ HD 4600 (GT2) 47 W / 2.9 GHz 55 W / 3.7 GHz  3.9 GHz 400 MHz 8 MB N/A January 21, 2014 (2014-01-21)[73] $568
4900MQ 47 W / 2.8 GHz 55 W / 3.6 GHz  3.8 GHz June 2, 2013 (2013-06-02)[74] $570
4860EQ Iris Pro 5200 (GT3e) 47 W / 1.8 GHz N/A  3.2 GHz 750 MHz 1000 MHz 6 MB 128 MB August 2013 (2013-08) $508
4860HQ 47 W / 2.4 GHz 55 W / 3.4 GHz  3.6 GHz 200 MHz 1200 MHz January 21, 2014 (2014-01-21)[73] $434
4850EQ 47 W / 1.6 GHz N/A  3.2 GHz 650 MHz 1000 MHz August 2013 (2013-08) $466
4850HQ 47 W / 2.3 GHz 55 W / 3.3 GHz  3.5 GHz 200 MHz 1300 MHz June 2, 2013 (2013-06-02)[74] $468
4810MQ HD 4600 (GT2) 47 W / 2.8 GHz 55 W / 3.6 GHz  3.8 GHz 400 MHz N/A January 21, 2014 (2014-01-21)[73] $378
4800MQ 47 W / 2.7 GHz 55 W / 3.5 GHz  3.7 GHz June 2, 2013 (2013-06-02)[74] $380
4750HQ Iris Pro 5200 (GT3e) 47 W / 2.0 GHz 55 W / 3.0 GHz  3.2 GHz 200 MHz 1200 MHz 128 MB $440
4702MQ HD 4600 (GT2) 37 W / 2.2 GHz 45 W / 2.9 GHz 400 MHz 1150 MHz N/A $383
4702HQ
4700MQ 47 W / 2.4 GHz 55 W / 3.2 GHz  3.4 GHz
4700HQ 1200 MHz
4701EQ 1000 MHz September 1, 2013 (2013-09-01) $415
4700EQ June 2, 2013 (2013-06-02)[74] $378
Mainstream  2 (4) 4650U HD 5000 (GT3) 11.5 W / 800 MHz 15 W / 1.7 GHz N/A  3.3 GHz 200 MHz 1100 MHz 4 MB $454
4610Y HD 4200 (GT2) 6 W / 800 MHz 9.5 W / 800 MHz 11.5 W / 1.7 GHz  2.9 GHz 850 MHz September 1, 2013 (2013-09-01) OEM
4610M HD 4600 (GT2) N/A N/A 37 W / 3.0 GHz  3.7 GHz 400 MHz 1300 MHz January 21, 2014 (2014-01-21)[73] $346
4600M 37 W / 2.9 GHz  3.6 GHz September 1, 2013 (2013-09-01)
4600U HD 4400 (GT2) 11.5 W / 800 MHz 15 W / 2.1 GHz  3.3 GHz 200 MHz 1100 MHz $398
4558U Iris 5100 (GT3) 23 W / 800 MHz 28 W / 2.8 GHz 1200 MHz June 2, 2013 (2013-06-02)[74] $454
4550U HD 5000 (GT3) 11.5 W / 800 MHz 15 W / 1.5 GHz  3.0 GHz 1100 MHz
4500U HD 4400 (GT2) 15 W / 1.8 GHz 25 W / 3.0 GHz $398
 Core i5 4402E HD 4600 (GT2) N/A 25 W / 1.6 GHz N/A  2.7 GHz 400 MHz 900 MHz 3 MB September 1, 2013 (2013-09-01) $266
4400E N/A 37 W / 2.7 GHz  3.3 GHz 1000 MHz
4360U HD 5000 (GT3) 11.5 W / 800 MHz 15 W / 1.5 GHz  3.0 GHz 200 MHz 1100 MHz January 21, 2014 (2014-01-21)[73] $315
4350U 15 W / 1.4 GHz  2.9 GHz June 2, 2013 (2013-06-02)[74] $342
4340M HD 4600 (GT2) N/A 37 W / 2.9 GHz  3.6 GHz 400 MHz 1250 MHz January 21, 2014 (2014-01-21)[73] $266
4330M 37 W / 2.8 GHz  3.5 GHz September 1, 2013 (2013-09-01)
4310M HD 4600 (GT2) N/A 37 W / 2.7 GHz  3.4 GHz 400 MHz 1250 MHz January 21, 2014 (2014-01-21)[73] $225
4310U HD 4400 (GT2) 11.5 W / 800 MHz 15 W / 2.0 GHz  3.0 GHz 200 MHz 1100 MHz $281
4302Y HD 4200 (GT2) 4.5 W / 800 MHz N/A 11.5 W / 1.6 GHz  2.3 GHz 200 MHz 850 MHz September 1, 2013 (2013-09-01) N/A
4300Y 6 W / 800 MHz 9.5 W / 800 MHz $304
4300M HD 4600 (GT2) N/A N/A 37 W / 2.6 GHz  3.3 GHz 400 MHz 1250 MHz $225
4300U HD 4400 (GT2) 11.5 W / 800 MHz 15 W / 1.9 GHz  2.9 GHz 200 MHz 1100 MHz $287
4288U Iris 5100 (GT3) 23 W / 800 MHz 28 W / 2.6 GHz  3.1 GHz 1200 MHz June 2, 2013 (2013-06-02)[74] $342
4258U 28 W / 2.4 GHz  2.9 GHz 1100 MHz
4250U HD 5000 (GT3) 11.5 W / 800 MHz 15 W / 1.3 GHz  2.6 GHz 1000 MHz
4210Y HD 4200 (GT2) 6 W / 800 MHz 9.5 W / 800 MHz 11.5 W / 1.5 GHz  1.9 GHz 850 MHz September 1, 2013 (2013-09-01) $304
4202Y 4.5 W / 800 MHz N/A 11.5 W / 1.6 GHz  2.0 GHz N/A
4200Y 6 W / 800 MHz 9.5 W / 800 MHz 11.5 W / 1.4 GHz  1.9 GHz June 2, 2013 (2013-06-02)[74] $304
4200U HD 4400 (GT2) N/A 11.5 W / 800 MHz 15 W / 1.6 GHz 25 W / ?  2.6 GHz 1000 MHz $287
4200H HD 4600 (GT2) N/A 47 W / 2.8 GHz N/A  3.4 GHz 400 MHz 1150 MHz September 1, 2013 (2013-09-01) $257
4200M N/A 37 W / 2.5 GHz  3.1 GHz $240
 Core i3 4158U Iris 5100 (GT3) 23 W / 800 MHz 28 W / 2.0 GHz N/A 200 MHz 1100 MHz June 2, 2013 (2013-06-02)[74] $342
4102E HD 4600 (GT2) N/A 25 W / 1.6 GHz 400 MHz 900 MHz September 1, 2013 (2013-09-01) $225
4100E N/A 37 W / 2.4 GHz
4100M N/A 37 W / 2.5 GHz 1100 MHz N/A
4100U HD 4400 (GT2) 11.5 W / 800 MHz 15 W / 1.8 GHz 200 MHz 1000 MHz June 2, 2013 (2013-06-02)[74] $287
4020Y HD 4200 (GT2) 6 W / 800 MHz 9.5 W / 800 MHz 11.5 W / 1.5 GHz 850 MHz September 1, 2013 (2013-09-01) $304
4012Y 4.5 W / 800 MHz N/A N/A
4010Y 6 W / 800 MHz 9.5 W / 800 MHz 11.5 W / 1.3 GHz June 2, 2013 (2013-06-02)[74] $304
4010U HD 4400 (GT2) N/A 11.5 W / 800 MHz 15 W / 1.7 GHz 1000 MHz $287
4005U 950 MHz September 1, 2013 (2013-09-01) $281
4000M HD 4600 (GT2) N/A 37 W / 2.4 GHz 400 MHz 1100 MHz $240
 2 (2)  Pentium 3561Y HD Graphics 6 W / 800 MHz N/A 11.5 W / 1.2 GHz 200 MHz 850 MHz 2 MB December 2013 (2013-12) OEM
3560Y September 1, 2013 (2013-09-01)
3558U N/A 15 W / 1.7 GHz 1000 MHz December 2013 (2013-12)
3556U September 1, 2013 (2013-09-01)
3550M 37 W / 2.3 GHz 400 MHz 1100 MHz
 Celeron 2981U 15 W / 1.6 GHz 200 MHz 1000 MHz December 2013 (2013-12) $137
2980U September 1, 2013 (2013-09-01)
2957U 15 W / 1.4 GHz December 2013 (2013-12) $132
2955U September 1, 2013 (2013-09-01)
2950M 37 W / 2.0 GHz 400 MHz 1100 MHz $86
2961Y 6 W / 800 MHz 11.5 W / 1.1 GHz 200 MHz 850 MHz December 2013 (2013-12) OEM
  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.[70]:71–72
  2. This is the processor's rated frequency and TDP.[70]:71–72
  3. When extra cooling is available, this mode specifies a higher TDP and higher guaranteed frequency versus the nominal mode.[70]:71–72

Suffixes to denote:

  • M – Mobile processor (Socket G3)
  • Q – Quad-core
  • U – Ultra-low power (BGA1168 packaging)
  • X – "Extreme"
  • Y – Extreme low-power (BGA1168 packaging)
  • E / H – BGA1364 packaging

Roadmap[edit]

The Skylake microarchitecture will be the successor to the Haswell and Broadwell architectures.

See also[edit]

References[edit]

  1. ^ "Intel Developer Forum". Intel.com. Retrieved 2012-01-04. 
  2. ^ "IDF 2008 Shanghai : Compte-rendu Processeur : de Nehalem à Haswell". x86 Secret. Archived from the original on 2011-07-18. Retrieved 2012-01-04. 
  3. ^ Moorhead, Patrick (4 June 2013). "Intel's Newest Core Processors: All About Graphics And Low Power". Forbes. 
  4. ^ Crothers, Brooke (2011-09-14). "Haswell chip completes Ultrabook 'revolution'". News.cnet.com. Retrieved 2012-01-04. 
  5. ^ Shrout, Ryan. "IDF 2012: Intel Haswell Architecture Revealed". PC Perspective. 
  6. ^ "IDF: Intel says Haswell won't use Ivy Bridge transistors". The Inquirer. 2012-09-17. Retrieved 2013-10-12. 
  7. ^ "Intel Haswell and Broadwell Silicon Variants Detailed". techPowerUp. 2012-12-26. Retrieved 2013-10-12. 
  8. ^ Anand Lal Shimpi (2013-05-01). "Intel Iris & Iris Pro Graphics: Haswell GT3/GT3e Gets a Brand". AnandTech. Retrieved 2013-10-22. 
  9. ^ a b c d e Shvets, Gennadiy (9 July 2013). "Intel Core i5-3570K vs i5-4670K". Retrieved 23 July 2013. 
  10. ^ "Intel Core i7-4770K CPU Review. Intel Haswell for Desktops: Ruin of Our Hopes?. Page 11". X-bit labs. Retrieved 2013-10-12. 
  11. ^ "Google Translate". Translate.google.com. Retrieved 2014-01-16. 
  12. ^ "Intel Haswell hotter and slower than expected". PC Pro. 
  13. ^ Haswell heat surprises system builders
  14. ^ Retail Versions of Intel Core i “Haswell” Are “Hotter and Slower” Than Expected – Report
  15. ^ Intel Core i7-4770K CPU Review. Intel Haswell for Desktops: Ruin of Our Hopes?. Page 12
  16. ^ Koen Crijns (2013-10-21). "Workshop: How to overclock Haswell processors - In practice". Us.hardware.info. Retrieved 2014-04-02. 
  17. ^ "Overclocking Haswell on ASUS' 8-Series Motherboards [video]". AnandTech. 2013-06-12. Retrieved 2014-04-02. 
  18. ^ a b c Anand Lal Shimpi (2012-10-05). "Intel's Haswell Architecture Analyzed". AnandTech. Retrieved 2013-10-20. 
  19. ^ a b c "Intel 2013 Haswell CPUs Get Detailed in Series of Leaked Slides". Softpedia. Retrieved 2012-01-04. 
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