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IntelBX80601920
IntelBX80646I74790K
$348
▲ 542,506 ▼

4 Cores, 8 Threads @2.66GHz, Nehalem.
Release date: Q3 2008.

VS
▲ 8841,573 ▼
 $348 

4 Cores, 8 Threads @4.0GHz, Haswell.
Release date: Q2 2014.

Effective Speed 
+28%
Real World Speed
Performance profile from 524,820 user samples
Benchmark your CPU here
69,074 User Benchmarks
Best Bench: 72% Base clock 2.65 GHz, turbo 2.75 GHz (avg)
Worst Bench: 46% Base clock 1.6 GHz, turbo 0.95 GHz (avg)
Poor: 46% Great: 72%
SPEED RANK: 556th / 1442
Gaming
Gaming 62%
Destroyer
Desktop
Desktop 64%
Destroyer
Workstation
Workstation 46%
Yacht
455,746 User Benchmarks
Best Bench: 87% Base clock 4 GHz, turbo 4.6 GHz (avg)
Worst Bench: 67% Base clock 4 GHz, turbo 0.7 GHz (avg)
Poor: 67% Great: 87%
SPEED RANK: 251st / 1442
Gaming
Gaming 79%
Battleship
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed 		61.6 % 78.9 % Faster effective speed.
+28%
Average Score 
+64%
Memory
Avg. Memory Latency 		84.9 Pts 88.1 Pts +4%
1-Core
Avg. Single Core Speed 		64.7 Pts 114 Pts Much faster single-core speed.
+76%
2-Core
Avg. Dual Core Speed 		124 Pts 216 Pts Much faster dual-core speed.
+74%
4-Core
Avg. Quad Core Speed 		211 Pts 378 Pts Much faster quad-core speed.
+79%
8-Core
Avg. Octa Core Speed 		298 Pts 560 Pts Hugely faster octa-core speed.
+88%
Overclocked Score 
+46%
Memory
OC Memory Latency 		94.7 Pts 96.8 Pts +2%
1-Core
OC Single Core Speed 		84.8 Pts 128 Pts Much faster OC single-core speed.
+51%
2-Core
OC Dual Core Speed 		161 Pts 248 Pts Much faster OC dual-core speed.
+54%
4-Core
OC Quad Core Speed 		279 Pts 433 Pts Much faster OC quad-core speed.
+55%
8-Core
OC Octa Core Speed 		388 Pts 643 Pts Much faster OC octa-core speed.
+66%
Value & Sentiment 
+227%
Market Share
Based on 67,717,480 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.06 % 0.62 % Hugely higher market share.
+933%
Value
Value For Money 		83.9 % Better value.
+13% 		74.2 %
User Rating
UBM User Rating 		54 % 88 % Much more popular.
+63%
Price
Price (score) 		$90 Much cheaper.
+74% 		$348
Nice To Haves 
+41%
Age
Newest 		187 Months 118 Months Much more recent.
+37%
TDP
Thermal Design Power (TDP) 		130 Watts 88 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores 		4 cores 4 cores
Threads
CPU Processing Threads 		8 threads 8 threads
Lithography
Manufacturing process 		45 nm 22 nm Much newer manufacturing.
+51%
Base Clock
Base Clock Speed 		2.66 GHz 4 GHz Much faster base frequency.
+50%
Turbo Clock
Turbo Clock Speed 		2.93 GHz 4.4 GHz Much faster turbo frequency.
+50%
64-Core
OC Multi Core Speed 		399 Pts 654 Pts Much faster OC 64-core speed.
+64%
64-Core
Avg. Multi Core Speed 		306 Pts 573 Pts Hugely faster 64-core speed.
+87%
Specifications 
Series
CPU Architecture 		Nehalem Haswell
Socket
Motherboard Socket 		LGA1366 FCLGA1150
Graphics
Integrated Graphics 		None HD 4600
Launch Date
Launch Date 		Q4'08 Q2'14
Instruction Set Extensions
Instruction Set Extensions 		SSE4.2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography 		45 nm 22 nm
Recommended Price
Recommended Customer Price 		$305.00 $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency 		2.93 GHz 4.4 GHz
Bus Speed
Bus Speed 		4.8 GT/s QPI 5 GT/s DMI2
Max Memory Size
Max Memory Size (dependent on memory type) 		24 GB 32 GB
Memory Types
Memory Types 		DDR3 800/1066 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Channels
Max # of Memory Channels 		3 2
Package Size
Package Size 		42.5mm x 45.0mm 37.5mm x 37.5mm
Thermal Monitoring Technologies
Thermal Monitoring Technologies 		No Yes
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		1.0 2.0
AES New Instructions
Intel® AES New Instructions 		No Yes

More specs » More specs »
Conclusion 
Average Bench 61.6%
Average Bench 78.9%
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The Intel Core i7-920 is five and a half years old which puts it at an enormous disadvantage to more modern processors. The 920 sports four cores and eight threads which is the same basic configuration that Intel still uses in the majority of their i7s. Comparing the 920 to the 4770K, its modern day equivalent, shows that 920 lags by 63% at stock speeds and by 44% when both processors are overclocked. Overclocking improves the 920 by 30% vs just 17% for the 4770K. Aside from approximately 50% more calculation throughput the 4770K offers lower power consumption, compatibility with Intel's latest FCLGA1150 platform, on-board graphics and newer CPU instructions. Owners of the 920 should probably consider upgrading not only to improve system response times but also to take advantage of the newer platform. [Mar '14 CPUPro]

MORE DETAILS

The Intel Core i7-4790K, codenamed Devil's Canyon, is an upgraded 4770K, Intel's current flagship i7. The 4790K features an improved thermal interface which enables it to dissipate heat more efficiently than the 4770K. Comparing the 4770K and 4790K shows that stock performance has improved by 13% which is consistent with the base clock jump from 3.5 GHz to 4.0 GHz. OC performance remains unchanged. Comparing the 4790K and 4790 shows that at stock clocks the 4790K is around 16% faster which considering the small price difference makes the 4790K a far better choice. Previously Intel targeted the unlocked K versions at overclockers but with Devil's Canyon they have included VT-d on the K chip and this time it's squarely aimed at both power users and overclockers alike. Until the release of Broadwell in six months, the 4790K is the high end CPU of choice. [Jul '14 CPUPro]

MORE DETAILS

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We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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