IntelBX80601920
IntelBX80646I74770K

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

4 Cores, 8 Threads @3.5GHz, Haswell.
Release date: Q1 2013.

Real World Speed
Performance profile from 227,715 user samples
68,915 User Benchmarks
Best Bench: 73% Base clock 4 GHz, turbo 4.2 GHz (avg)
Worst Bench: 55% Base clock 2.65 GHz, turbo 1.55 GHz (avg)
Poor: 55% Great: 73%
SPEED RANK: 435th / 1317
Gaming
Gaming 64%
Destroyer
Desktop
Desktop 67%
Battle cruiser
Workstation
Workstation 48%
Yacht
158,800 User Benchmarks
Best Bench: 89% Base clock 3.5 GHz, turbo 4.4 GHz (avg)
Worst Bench: 67% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 67% Great: 89%
SPEED RANK: 172nd / 1317
Gaming
Gaming 79%
Battleship
Desktop
Desktop 82%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
Effective Speed
Effective CPU Speed
64.3 % 78.7 % Faster effective speed.
+22%
Memory
Avg. Memory Latency
87.5 Pts 88.2 Pts +1%
1-Core
Avg. Single Core Mixed Speed
65.9 Pts 109 Pts Much faster single-core speed.
+65%
2-Core
Avg. Dual Core Mixed Speed
127 Pts 212 Pts Much faster dual-core speed.
+67%
4-Core
Avg. Quad Core Mixed Speed
226 Pts 375 Pts Much faster quad-core speed.
+66%
8-Core
Avg. Octa Core Mixed Speed
320 Pts 557 Pts Much faster octa-core speed.
+74%
Memory
OC Memory Latency
95.4 Pts 96.3 Pts +1%
1-Core
OC Single Core Mixed Speed
80.2 Pts 127 Pts Much faster OC single-core speed.
+58%
2-Core
OC Dual Core Mixed Speed
157 Pts 249 Pts Much faster OC dual-core speed.
+59%
4-Core
OC Quad Core Mixed Speed
278 Pts 458 Pts Much faster OC quad-core speed.
+65%
8-Core
OC Octa Core Mixed Speed
393 Pts 655 Pts Much faster OC octa-core speed.
+67%
Market Share
Based on 47,279,255 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.09 % 0.29 % Hugely higher market share.
+222%
Value
Value For Money
67.9 % 77 % Better value.
+13%
User Rating
UBM User Rating
54 % 64 % More popular.
+19%
Price
Price (score)
$227 Cheaper.
+24%
$300
Age
Newest
157 Months 103 Months Much more recent.
+34%
TDP
Thermal Design Power (TDP)
130 Watts 84 Watts Much more energy efficient.
+35%
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 3.5 GHz Much faster base frequency.
+32%
Turbo Clock
Turbo Clock Speed
2.93 GHz 3.9 GHz Much faster turbo frequency.
+33%
64-Core
OC Multi Core Mixed Speed
396 Pts 656 Pts Much faster OC 64-core speed.
+66%
64-Core
Avg. Multi Core Mixed Speed
323 Pts 565 Pts Much faster 64-core speed.
+75%
Series
CPU Architecture
Nehalem Haswell
Socket
Motherboard Socket
LGA1366 FCLGA1150
Graphics
Integrated Graphics
None HD 4600
Launch Date
Launch Date
Q4'08 Q2'13
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 3.9 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 »
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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]

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The Core i7-4770K is Intel's fourth generation (codename Haswell) flagship processor in the hugely successful Core range. It's not surprising that the 4770K sets a new Real World Performance index record, besting its predecessor by just over 9%. The 4770K also tops out in the remainder of our benchmarks setting new highs of 10020 and 2164 in the PassMark and PassMark Single Thread tests which equates to roughly an 8% overall performance increase over the 3770K. With a TDP of 84 watts, power consumption has increased slightly over the 3770K. The new Core i7-4770K demonstrates around an 8% performance increase over its predecessor the 3770K but it costs 12% more. As a result, at least until prices drop, this processor represents marginally worse value for money than the 3770K. [Jun '13 CPUPro]

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Processor Rankings (Price vs Performance) October 2021 CPU Rankings.

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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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.

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