IntelBX80646I74790K
IntelBX80677I57500

4 Cores, 4 Threads
@3.4GHz Kaby Lake (2017)

Real World Speed
Performance profile from 87,654 user samples
81,827 User Benchmarks
Best Bench: 99% Base clock 4.9 GHz, turbo 6 GHz (avg)
Worst Bench: 74% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 74% Great: 99%
SPEED RANK: 15th / 961
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
5,827 User Benchmarks
Best Bench: 86% Base clock 3.4 GHz, turbo 3.6 GHz (avg)
Worst Bench: 68% Base clock 3.4 GHz, turbo 3.6 GHz (avg)
Poor: 68% Great: 86%
SPEED RANK: 25th / 961
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 79%
Battleship
Workstation
Workstation 49%
Yacht
Effective Speed
Effective CPU Speed
87.8 % Slightly faster effective speed.
+9%
80.9 % -9%
SC Mixed
Avg. Single Core Mixed Speed
123 Pts Slightly faster single-core speed.
+11%
111 Pts -11%
QC Mixed
Avg. Quad Core Mixed Speed
432 Pts +3% 420 Pts -3%
MC Mixed
Avg. Multi Core Mixed Speed
646 Pts Much faster multi-core speed.
+51%
428 Pts -51%
SC Mixed
OC Single Core Mixed Speed
136 Pts Faster OC single-core speed.
+15%
118 Pts -15%
QC Mixed
OC Quad Core Mixed Speed
505 Pts Slightly faster OC quad-core speed.
+12%
452 Pts -12%
MC Mixed
OC Multi Core Mixed Speed
730 Pts Much faster OC multi-core speed.
+61%
454 Pts -61%
Market Share
Based on 4,068,111 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.11 % Hugely higher market share.
+171%
0.78 % -171%
Value
Value For Money
83 % -14% 94.3 % Slightly better value.
+14%
User Rating
UBM User Rating
89 % More popular.
+25%
71 % -25%
Price
Price (score)
$339 -43% $194 Much cheaper.
+43%
Age
Newest
36 Months -86% 5 Months Hugely more recent.
+86%
TDP
Thermal Design Power (TDP)
88 Watts -26% 65 Watts More energy efficient.
+26%
Cores
CPU Processing Cores
4 cores 0% 4 cores 0%
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads -100%
Lithography
Manufacturing process
22 nm -36% 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
4 GHz Faster base frequency.
+18%
3.4 GHz -18%
Turbo Clock
Turbo Clock Speed
4.4 GHz Faster turbo frequency.
+16%
3.8 GHz -16%
SC Int
Single Core Integer Speed
139 Pts Faster single-core int speed.
+22%
114 Pts -22%
SC Float
Single Core Floating Point Speed
140 Pts Slightly faster single-core fp speed.
+15%
122 Pts -15%
QC Int
Quad Core Integer Speed
511 Pts Faster quad-core int speed.
+16%
440 Pts -16%
QC Float
Quad Core Floating Point Speed
515 Pts Slightly faster quad-core fp speed.
+10%
468 Pts -10%
MC Int
Multi Core Integer Speed
698 Pts Much faster multi-core int speed.
+59%
439 Pts -59%
MC Float
Multi Core Floating Point Speed
736 Pts Much faster multi-core fp speed.
+57%
468 Pts -57%
Series
CPU Architecture
Haswell (2013) Kaby Lake (2017)
Socket
Motherboard Socket
FCLGA1150 FCLGA1151
Graphics
Integrated Graphics
HD 4600 HD 630
Launch Date
Launch Date
Q2'14 Q1'17
Cache
Cache
8 MB SmartCache 6 MB
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $192.00 - $202.00
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification
PCG 2013D PCG 2015C (65W)
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4600 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.25 GHz 1.10 GHz
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 64 GB
TSX-NI
Intel® TSX-NI
No Yes
vPro Tech
Intel® vPro Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Trusted Execution Technology ‡
No Yes

More specs » More specs »
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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]

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The Core i5-7500 is not due for release until January 2017 but one of our users has submitted benchmarks for it already. We only have one sample so these benchmark results are obviously preliminary. Comparing the 7500 and 6500 shows that average effective speed is up by an impressive 15%. Although price details are not yet available the i5-7500 is likely to cost around $210 which would be in line with the prices for previous generations of this i5. We will revisit this summary when we have more samples. [Oct '16 CPUPro]

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Processor Rankings (Price vs Performance) June 2017 CPU Rankings.

Welcome to our desktop CPU comparison. We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by price to yield a value for money rating which is geared towards gamers. Calculated values don't always paint the whole picture so we check them against hundreds of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top CPUs. [CPUPro]

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

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CPUGPUSSD
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AMD Ryzen 7 1700 $280AMD RX 480 $608Samsung 850 Pro 256GB $138
Intel Core i5-7600K $232Nvidia GTX 1060-6GB $247Samsung 850 Evo 500GB $153
HDDRAMUSB
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