IntelBX80601950
IntelBX80646I74770K

4 Cores, 8 Threads @3.07GHz, Nehalem.
Release date: Q1 2009.

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

Real World Speed
Performance profile from 186,666 user samples
38,570 User Benchmarks
Best Bench: 74% Base clock 3.05 GHz, turbo 3.15 GHz (avg)
Worst Bench: 56% Base clock 3.05 GHz, turbo 2.25 GHz (avg)
Poor: 56% Great: 74%
SPEED RANK: 389th / 1323
Gaming
Gaming 67%
Battle cruiser
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 51%
Yacht
148,096 User Benchmarks
Best Bench: 88% Base clock 4.6 GHz, turbo 6.05 GHz (avg)
Worst Bench: 64% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 64% Great: 88%
SPEED RANK: 187th / 1323
Gaming
Gaming 78%
Battleship
Desktop
Desktop 82%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
Effective Speed
Effective CPU Speed
66.7 % 78.1 % Faster effective speed.
+17%
Memory
Avg. Memory Latency
87.1 Pts 87.9 Pts +1%
1-Core
Avg. Single Core Mixed Speed
74.5 Pts 109 Pts Much faster single-core speed.
+46%
2-Core
Avg. Dual Core Mixed Speed
144 Pts 210 Pts Much faster dual-core speed.
+46%
4-Core
Avg. Quad Core Mixed Speed
254 Pts 370 Pts Much faster quad-core speed.
+46%
8-Core
Avg. Octa Core Mixed Speed
361 Pts 556 Pts Much faster octa-core speed.
+54%
Memory
OC Memory Latency
95.7 Pts 96.5 Pts +1%
1-Core
OC Single Core Mixed Speed
82.9 Pts 126 Pts Much faster OC single-core speed.
+52%
2-Core
OC Dual Core Mixed Speed
162 Pts 246 Pts Much faster OC dual-core speed.
+52%
4-Core
OC Quad Core Mixed Speed
308 Pts 444 Pts Much faster OC quad-core speed.
+44%
8-Core
OC Octa Core Mixed Speed
413 Pts 655 Pts Much faster OC octa-core speed.
+59%
Market Share
Based on 48,478,557 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.07 % 0.29 % Hugely higher market share.
+314%
Value
Value For Money
66.6 % 77.9 % Better value.
+17%
User Rating
UBM User Rating
54 % 64 % More popular.
+19%
Price
Price (score)
$279 +0% $280
Age
Newest
153 Months 105 Months Much more recent.
+31%
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
3.07 GHz 3.5 GHz Faster base frequency.
+14%
Turbo Clock
Turbo Clock Speed
3.33 GHz 3.9 GHz Faster turbo frequency.
+17%
64-Core
OC Multi Core Mixed Speed
415 Pts 656 Pts Much faster OC 64-core speed.
+58%
64-Core
Avg. Multi Core Mixed Speed
363 Pts 562 Pts Much faster 64-core speed.
+55%
Series
CPU Architecture
Nehalem Haswell
Socket
Motherboard Socket
LGA1366 FCLGA1150
Graphics
Integrated Graphics
None HD 4600
Launch Date
Launch Date
Q2'09 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
3.33 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 i7-950 is a first generation Core processor which is now three generations and four years old. The 950 was included in the group test as a reference for how fast processors were back in 2009. This particular generation of processor heralded the 4 core 8 thread configuration that Intel has been kitting its top end processors with ever since. In terms of real world performance based on single core horsepower (most applications are still unable to make use of multiple cores concurrently), with a PassMark Single Thread score of 1320 the i7-950 is approximately 50% slower than its modern day equivalent, the i7 4770K[Feb '12 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) December 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.

UserBenchmark of the month

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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