IntelBX80623I72600K
IntelBX80646I74790K

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

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

Real World Speed
Performance profile from 220,575 user samples
57,605 User Benchmarks
Best Bench: 88% Base clock 3.4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 52% Base clock 3.4 GHz, turbo 0.35 GHz (avg)
Poor: 52% Great: 88%
SPEED RANK: 149th / 1128
Gaming
Gaming 69%
Battle cruiser
Desktop
Desktop 70%
Battleship
Workstation
Workstation 50%
Yacht
162,970 User Benchmarks
Best Bench: 98% Base clock 4 GHz, turbo 4.7 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 70% Great: 98%
SPEED RANK: 43rd / 1128
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 63%
Destroyer
Effective Speed
Effective CPU Speed
69 % 85 % Faster effective speed.
+23%
SC Mixed
Avg. Single Core Mixed Speed
99.4 Pts 121 Pts Faster single-core speed.
+22%
QC Mixed
Avg. Quad Core Mixed Speed
335 Pts 414 Pts Faster quad-core speed.
+24%
MC Mixed
Avg. Multi Core Mixed Speed
501 Pts 634 Pts Faster multi-core speed.
+27%
SC Mixed
OC Single Core Mixed Speed
122 Pts 136 Pts Slightly faster OC single-core speed.
+11%
QC Mixed
OC Quad Core Mixed Speed
447 Pts 495 Pts Slightly faster OC quad-core speed.
+11%
MC Mixed
OC Multi Core Mixed Speed
624 Pts 715 Pts Slightly faster OC multi-core speed.
+15%
Market Share
Based on 11,473,226 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.53 % 1.57 % Hugely higher market share.
+196%
Value
Value For Money
62.8 % 78.2 % Better value.
+24%
User Rating
UBM User Rating
68 % 90 % Much more popular.
+32%
Price
Price (score)
$375 $365 +3%
Age
Newest
93 Months 52 Months Much more recent.
+44%
TDP
Thermal Design Power (TDP)
95 Watts 88 Watts Slightly more energy efficient.
+7%
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
32 nm 22 nm Much newer manufacturing.
+31%
Base Clock
Base Clock Speed
3.4 GHz 4 GHz Faster base frequency.
+18%
Turbo Clock
Turbo Clock Speed
3.8 GHz 4.4 GHz Faster turbo frequency.
+16%
SC Int
Single Core Integer Speed
122 Pts 136 Pts Slightly faster single-core int speed.
+11%
SC Float
Single Core Floating Point Speed
122 Pts 137 Pts Slightly faster single-core fp speed.
+12%
QC Int
Quad Core Integer Speed
446 Pts 503 Pts Slightly faster quad-core int speed.
+13%
QC Float
Quad Core Floating Point Speed
449 Pts 501 Pts Slightly faster quad-core fp speed.
+12%
MC Int
Multi Core Integer Speed
600 Pts 680 Pts Slightly faster multi-core int speed.
+13%
MC Float
Multi Core Floating Point Speed
619 Pts 727 Pts Faster multi-core fp speed.
+17%
Series
CPU Architecture
Sandy Bridge Haswell
Socket
Motherboard Socket
LGA1155 FCLGA1150
Graphics
Integrated Graphics
HD 3000 HD 4600
Launch Date
Launch Date
Q1'11 Q2'14
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX SSE4.1/4.2, AVX 2.0
Lithography
Lithography
32 nm 22 nm
Recommended Price
Recommended Customer Price
N/A $339.00 - $350.00
Bus Speed
Bus Speed
5 GT/s DMI 5 GT/s DMI2
Memory Types
Memory Types
DDR3 1066/1333 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth
21 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 3000 Intel® HD Graphics 4600
Graphics Base Frequency
Graphics Base Frequency
850 MHz 350 MHz
Wireless Display
Intel® Wireless Display
No Yes
# of Displays Supported
# of Displays Supported ‡
2 3
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.35 GHz 1.25 GHz
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
No Yes
PCI Express Revision
PCI Express Revision
2.0 3.0

More specs » More specs »
ADVERTISEMENT

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 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

Processor Rankings (Price vs Performance) October 2018 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]

ADVERTISEMENT

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.
  • - 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $376Nvidia GTX 1070 $329Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $115
Intel Core i7-7700K $360AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $145SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback