IntelBX80646I74790
IntelBX80684I58600K

4 Cores, 8 Threads
@3.6GHz Haswell (2013)

6 Cores, 6 Threads
@3.6GHz Coffee Lake (2017)

Real World Speed
Performance profile from 61,305 user samples
48,335 User Benchmarks
Best Bench: 87% Base clock 3.6 GHz, turbo 4 GHz (avg)
Worst Bench: 67% Base clock 3.6 GHz
Poor: 67% Great: 87%
SPEED RANK: 55th / 985
Gaming
Gaming 78%
Battleship
Desktop
Desktop 79%
Battleship
Workstation
Workstation 57%
Gunboat
12,970 User Benchmarks
Best Bench: 123% Base clock 3.6 GHz, turbo 5.3 GHz (avg)
Worst Bench: 94% Base clock 3.6 GHz, turbo 2.2 GHz (avg)
Poor: 94% Great: 123%
SPEED RANK: 8th / 985
Gaming
Gaming 105%
UFO
Desktop
Desktop 101%
UFO
Workstation
Workstation 77%
Battleship
Effective Speed
Effective CPU Speed
77.9 % 105 % Much faster effective speed.
+35%
SC Mixed
Avg. Single Core Mixed Speed
110 Pts 136 Pts Faster single-core speed.
+24%
QC Mixed
Avg. Quad Core Mixed Speed
382 Pts 537 Pts Much faster quad-core speed.
+41%
MC Mixed
Avg. Multi Core Mixed Speed
570 Pts 784 Pts Much faster multi-core speed.
+38%
SC Mixed
OC Single Core Mixed Speed
119 Pts 158 Pts Much faster OC single-core speed.
+33%
QC Mixed
OC Quad Core Mixed Speed
443 Pts 631 Pts Much faster OC quad-core speed.
+42%
MC Mixed
OC Multi Core Mixed Speed
601 Pts 924 Pts Much faster OC multi-core speed.
+54%
Market Share
Based on 7,515,242 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.94 % 1.14 % Higher market share.
+21%
Value
Value For Money
76.3 % 114 % Much better value.
+50%
User Rating
UBM User Rating
80 % 116 % Much more popular.
+45%
Price
Price (score)
$308 $235 Cheaper.
+24%
Age
Newest
45 Months 4 Months Hugely more recent.
+91%
TDP
Thermal Design Power (TDP)
84 Watts Slightly more energy efficient.
+12%
95 Watts
Cores
CPU Processing Cores
4 cores 6 cores Much higher core count.
+50%
Threads
CPU Processing Threads
8 threads Much higher thread count.
+33%
6 threads
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
3.6 GHz 3.6 GHz
Turbo Clock
Turbo Clock Speed
4 GHz 4.3 GHz Slightly faster turbo frequency.
+8%
SC Int
Single Core Integer Speed
118 Pts 154 Pts Much faster single-core int speed.
+31%
SC Float
Single Core Floating Point Speed
119 Pts 163 Pts Much faster single-core fp speed.
+37%
QC Int
Quad Core Integer Speed
442 Pts 614 Pts Much faster quad-core int speed.
+39%
QC Float
Quad Core Floating Point Speed
442 Pts 650 Pts Much faster quad-core fp speed.
+47%
MC Int
Multi Core Integer Speed
573 Pts 899 Pts Much faster multi-core int speed.
+57%
MC Float
Multi Core Floating Point Speed
613 Pts 970 Pts Much faster multi-core fp speed.
+58%
Series
CPU Architecture
Haswell (2013) Coffee Lake (2017)
Socket
Motherboard Socket
FCLGA1150 FCLGA1151
Graphics
Integrated Graphics
HD 4600 UHD 630
Launch Date
Launch Date
Q2'14 Q4'17
Cache
Cache
8 MB SmartCache 9 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$303.00 - $312.00 N/A
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification
PCG 2013D PCG 2015C (130W)
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 DDR4-2666
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4600 Intel® UHD Graphics 630
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.2 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 64 GB
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
TSX-NI
Intel® TSX-NI
No Yes
PCI Express Revision
PCI Express Revision
Up to 3.0 3.0
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16, 2x8, 1x8+2x4 Up to 1x16 or 2x8 or 1x8+2x4

More specs » More specs »
ADVERTISEMENT

The Core i7-4790 is the third upgrade to Intel's flagship quad core hyper-threaded CPU. This version, like its predecessor the i7-4771, gets a 100 MHz bump in stock frequency and additionally the i7-4790 also gets a 100 MHz turbo frequency bump. These improvements (~4%) are marginal and practically impossible to discern in day to day use. Looking at a benchmark comparison between the 4771 and 4790 verifies that there is little difference between the two CPUs. Although the i7-4790 isn't much of a step forward, it's still one of the best (locked) mainstream processors on the market. AMD hasn't been able to compete with Intel on single threaded performance for several years, consequently Intel have no need to push the envelope. Overclockers should wait for the 4790K which is rumoured to be released shortly. [May '14 CPUPro]

MORE DETAILS

The unlocked hex-core i5-8600K from Intel’s latest Coffee Lake generation of processors is the new flagship of the i5 series, succeeding the Kaby Lake quad-core i5-7600K. The 8th generation of processors brings the largest performance uplift since Sandy Bridge by adding more cores at each of the i3, i5 and i7 product lines. Like the other Coffee Lake processors, the i5-8600K is built upon optimized 14nm architecture, marginally improved upon from Kaby Lake and Skylake. The 8600K has a 95W TDP and a nominal stock clock of 3.6 GHz, which boosts to 4.1 GHz for all six cores, 4.2 GHz for dual/quad and 4.3 GHz for single core. Early benchmarks put the i5-8600K’s effective speed 15% ahead of the i5-7600K. A 50% increase in multi-core speed is explained by two additional cores and thanks to the quad-core clock bump from 4 GHz on the 7600K to 4.2 GHz on the 8600K there is also an additional 5% performance boost across all workloads. All Coffee Lake processors require a 300-series chipset, making a straight CPU upgrade unfeasible despite sharing the same socket as their Z270 predecessors. Even though most games still use less than 4 cores simultaneously, the i5-8600K is a great choice for gamers (especially streamers) but for $80 less, the 8350K which is faster than last years 7600K and only marginally weaker for gaming than the 8600K is certainly well worth considering as well. [Oct '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) February 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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 (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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $430Samsung 850 Evo 250GB $88
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $146
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $146
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $185SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $79G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $42Corsair Vengeance LPX DDR4 3200 C16 2x8GB $206SanDisk Extreme 16GB $18
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback