IntelBX80623I72600K
IntelBX80677I57600K

4 Cores, 8 Threads @3.4GHz, Sandy Bridge.
Release date: Q1 2011.

4 Cores, 4 Threads @3.8GHz, Kaby Lake.
Release date: Q1 2017.

Real World Speed
Performance profile from 173,822 user samples
73,129 User Benchmarks
Best Bench: 89% Base clock 3.4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 53% Base clock 3.7 GHz, turbo 0.85 GHz (avg)
Poor: 53% Great: 89%
SPEED RANK: 159th / 1158
Gaming
Gaming 69%
Battle cruiser
Desktop
Desktop 71%
Battleship
Workstation
Workstation 50%
Yacht
100,693 User Benchmarks
Best Bench: 109% Base clock 3.8 GHz, turbo 5.15 GHz (avg)
Worst Bench: 69% Base clock 3.8 GHz, turbo 2.25 GHz (avg)
Poor: 69% Great: 109%
SPEED RANK: 47th / 1158
Gaming
Gaming 90%
Nuclear submarine
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 55%
Yacht
Effective Speed
Effective CPU Speed
69.4 % 90.2 % Faster effective speed.
+30%
SC Mixed
Avg. Single Core Mixed Speed
101 Pts 127 Pts Faster single-core speed.
+26%
QC Mixed
Avg. Quad Core Mixed Speed
337 Pts 463 Pts Much faster quad-core speed.
+37%
MC Mixed
Avg. Multi Core Mixed Speed
496 Pts +4% 476 Pts
SC Mixed
OC Single Core Mixed Speed
121 Pts 149 Pts Faster OC single-core speed.
+23%
QC Mixed
OC Quad Core Mixed Speed
456 Pts 569 Pts Faster OC quad-core speed.
+25%
MC Mixed
OC Multi Core Mixed Speed
621 Pts Slightly faster OC multi-core speed.
+9%
568 Pts
Market Share
Based on 17,040,687 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.47 % 0.56 % Higher market share.
+19%
Value
Value For Money
59 % 97.4 % Much better value.
+65%
User Rating
UBM User Rating
69 % 98 % Much more popular.
+42%
Price
Price (score)
$450 $238 Much cheaper.
+47%
Age
Newest
100 Months 28 Months Much more recent.
+72%
TDP
Thermal Design Power (TDP)
95 Watts 91 Watts +4%
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads
Lithography
Manufacturing process
32 nm 14 nm Much newer manufacturing.
+56%
Base Clock
Base Clock Speed
3.4 GHz 3.8 GHz Slightly faster base frequency.
+12%
Turbo Clock
Turbo Clock Speed
3.8 GHz 4.2 GHz Slightly faster turbo frequency.
+11%
SC Int
Single Core Integer Speed
122 Pts 143 Pts Faster single-core int speed.
+17%
SC Float
Single Core Floating Point Speed
122 Pts 156 Pts Faster single-core fp speed.
+28%
QC Int
Quad Core Integer Speed
451 Pts 534 Pts Faster quad-core int speed.
+18%
QC Float
Quad Core Floating Point Speed
452 Pts 603 Pts Much faster quad-core fp speed.
+33%
MC Int
Multi Core Integer Speed
602 Pts Slightly faster multi-core int speed.
+12%
536 Pts
MC Float
Multi Core Floating Point Speed
618 Pts +1% 610 Pts
Series
CPU Architecture
Sandy Bridge Kaby Lake
Socket
Motherboard Socket
LGA1155 FCLGA1151
Graphics
Integrated Graphics
HD 3000 HD 630
Launch Date
Launch Date
Q1'11 Q1'17
Cache
Cache
8 MB SmartCache 6 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX SSE4.1/4.2, AVX 2.0
Lithography
Lithography
32 nm 14 nm
Recommended Price
Recommended Customer Price
N/A $242.00 - $243.00
Bus Speed
Bus Speed
5 GT/s DMI 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3 1066/1333 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 3000 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
850 MHz 350.00 MHz
# of Displays Supported
# of Displays Supported ‡
2 3
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.35 GHz 1.15 GHz
PCI Express Revision
PCI Express Revision
2.0 3.0

More specs » More specs »
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The i7-2600K Sandy Bridge processor is two generations old and nearly three years out of date. The numerous owners of this superb processor should feel in no hurry to upgrade as it's still one of the fastest consumer processors, even by today's standards. The benchmark figures indicate that in terms of real-world performance this processor is only 5% slower than the third generation Ivy Bridge i7-3770K, not bad considering its age. That said new buyers will find both better energy efficiency and marginal performance improvements elsewhere[Feb '12 CPUPro]

MORE DETAILS

The i5-7600K targets high end gamers, it sits just behind the flagship i7-7700K in Intel’s Kaby Lake lineup. The 7600K will likely be the most popular gaming CPU of 2017 (some competition from AMD’s upcoming Zen/Ryzen CPUs, would be very welcome). Comparing the 7600K and 6600K shows that the two processors are very closely matched and comparing the 7600K vs the hyper-threaded 7700K highlights the relative strength of the 7700K for workstation performance. There are no significant architectural differences between Kaby Lake and Skylake so, when fully overclocked, the two generations should perform similarly but Kaby Lake offers faster base clocks, improved speed shift technology which helps CPU responsiveness, and better integrated graphics[Jan '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) May 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

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