IntelBX80684I79700KF
IntelBX80646I74790K
$348

8 Cores, 8 Threads @3.60 GHz, 95 W.
Release date ≈ Q1 2019.

 $348 

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

Real World Speed
Performance profile from 328,603 user samples
13,224 User Benchmarks
Best Bench: 105% Base clock 3.6 GHz, turbo 5.1 GHz (avg)
Worst Bench: 88% Base clock 3.6 GHz, turbo 1.2 GHz (avg)
Poor: 88% Great: 105%
SPEED RANK: 12th / 1272
Gaming
Gaming 98%
Nuclear submarine
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 92%
Nuclear submarine
315,379 User Benchmarks
Best Bench: 94% Base clock 4 GHz, turbo 4.85 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 70% Great: 94%
SPEED RANK: 91st / 1272
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 69%
Battle cruiser
Effective Speed
Effective CPU Speed
98.1 % Faster effective speed.
+17%
84 %
Memory
Avg. Memory Latency
92.7 Pts +2% 90.8 Pts
1-Core
Avg. Single Core Mixed Speed
141 Pts Faster single-core speed.
+15%
123 Pts
2-Core
Avg. Dual Core Mixed Speed
280 Pts Faster dual-core speed.
+19%
236 Pts
4-Core
Avg. Quad Core Mixed Speed
555 Pts Much faster quad-core speed.
+33%
418 Pts
8-Core
Avg. Octa Core Mixed Speed
1052 Pts Much faster octa-core speed.
+69%
623 Pts
Memory
OC Memory Latency
97.3 Pts 97.3 Pts
1-Core
OC Single Core Mixed Speed
153 Pts Faster OC single-core speed.
+12%
137 Pts
2-Core
OC Dual Core Mixed Speed
306 Pts Faster OC dual-core speed.
+13%
271 Pts
4-Core
OC Quad Core Mixed Speed
610 Pts Faster OC quad-core speed.
+21%
503 Pts
8-Core
OC Octa Core Mixed Speed
1191 Pts Much faster OC octa-core speed.
+67%
713 Pts
Market Share
Based on 34,631,543 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.15 % 0.92 % Hugely higher market share.
+513%
Value
Value For Money
94.5 % Better value.
+20%
79 %
User Rating
UBM User Rating
63 % 160 % Hugely more popular.
+154%
Price
Price (score)
$319 Slightly cheaper.
+8%
$348
Age
Newest
20+ Months Much more recent.
+74%
76 Months
64-Core
OC Multi Core Mixed Speed
1187 Pts Much faster OC 64-core speed.
+66%
716 Pts
64-Core
Avg. Multi Core Mixed Speed
1063 Pts Much faster 64-core speed.
+69%
630 Pts
Launch Date
Launch Date
Q1'19 Q2'14
Cache
Cache
12 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography
14 nm 22 nm
Max Turbo Frequency
Max Turbo Frequency
4.90 GHz 4.4 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2013D
Max Memory Size
Max Memory Size (dependent on memory type)
128 GB 32 GB
Memory Types
Memory Types
DDR4-2666 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth
41.6 GB/s 25.6 GB/s
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
TSX-NI
Intel® TSX-NI
Yes No

More specs » More specs »
ADVERTISEMENT

Likely better at OCing compared to the normal K variant, but that's all i got... [Jul '19 GamingEliot]

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 2020 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]

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 i5-9600K $199Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $143Nvidia RTX 3080 $700Samsung 850 Evo 120GB $78
Intel Core i5-10600K $275Nvidia GTX 1650S (Super) $170Samsung 860 Evo 250GB $49
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $548SanDisk Extreme 16GB $28
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback