4 Cores, 4 Threads
@4.0GHz Coffee Lake (2017)

8 Cores, 16 Threads
@3.0GHz Zen (2017)

Real World Speed
Performance profile from 45,526 user samples
2,497 User Benchmarks
Best Bench: 114% Base clock 4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 78% Base clock 4 GHz, turbo 4.75 GHz (avg)
Poor: 78% Great: 114%
SPEED RANK: 18th / 1055
Gaming 96%
Nuclear submarine
Desktop 94%
Nuclear submarine
Workstation 58%
43,029 User Benchmarks
Best Bench: 98% Base clock 3 GHz, turbo 3.1 GHz (avg)
Worst Bench: 72% Base clock 3 GHz, turbo 3.2 GHz (avg)
Poor: 72% Great: 98%
SPEED RANK: 39th / 1055
Gaming 85%
Aircraft carrier
Desktop 82%
Aircraft carrier
Workstation 91%
Nuclear submarine
Effective Speed
Effective CPU Speed
96.2 % Slightly faster effective speed.
84.6 %
SC Mixed
Avg. Single Core Mixed Speed
132 Pts Much faster single-core speed.
101 Pts
QC Mixed
Avg. Quad Core Mixed Speed
499 Pts Faster quad-core speed.
393 Pts
MC Mixed
Avg. Multi Core Mixed Speed
511 Pts 1120 Pts Hugely faster multi-core speed.
SC Mixed
OC Single Core Mixed Speed
154 Pts Much faster OC single-core speed.
115 Pts
QC Mixed
OC Quad Core Mixed Speed
598 Pts Faster OC quad-core speed.
461 Pts
MC Mixed
OC Multi Core Mixed Speed
603 Pts 1313 Pts Hugely faster OC multi-core speed.
Market Share
Based on 7,919,492 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.14 % 0.93 % Hugely higher market share.
Value For Money
118 % Better value.
91.1 %
User Rating
UBM User Rating
70 % 107 % Much more popular.
Price (score)
$169 Cheaper.
6 Months Much more recent.
12 Months
Thermal Design Power (TDP)
91 Watts 65 Watts More energy efficient.
CPU Processing Cores
4 cores 8 cores Hugely higher core count.
CPU Processing Threads
4 threads 16 threads Hugely higher thread count.
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
4 GHz Much faster base frequency.
3 GHz
Turbo Clock
Turbo Clock Speed
4 GHz Slightly faster turbo frequency.
3.7 GHz
SC Int
Single Core Integer Speed
149 Pts Much faster single-core int speed.
111 Pts
SC Float
Single Core Floating Point Speed
160 Pts Much faster single-core fp speed.
120 Pts
QC Int
Quad Core Integer Speed
582 Pts Much faster quad-core int speed.
444 Pts
QC Float
Quad Core Floating Point Speed
628 Pts Much faster quad-core fp speed.
479 Pts
MC Int
Multi Core Integer Speed
584 Pts 1273 Pts Hugely faster multi-core int speed.
MC Float
Multi Core Floating Point Speed
632 Pts 1322 Pts Hugely faster multi-core fp speed.
CPU Architecture
Coffee Lake (2017) Zen (2017)
Motherboard Socket
Integrated Graphics
UHD 630 None

The quad core i3-8350K hails from Intel’s most recent (and as yet unreleased) generation of Coffee Lake processors. It has a stock clock of 4.0 GHz, 8MB of cache and a TDP of 95W. The 8350K is the first i3 processor to feature four cores (previous generations of i3s had two cores and four threads). With this eighth generation of processors, Intel has introduced a step change in their nomenclature which witnesses the old quad core i5s become the new quad core i3s. Our benchmarks show a 25% increase in effective speed between generations of i3 8350K vs 7350K and near equivalence between the outgoing i5-7600K and the new i3-8350K. Although the price points of Coffee Lake are not yet known, if Intel keep them roughly in line with the previous generations (i3 ~= $140) this will represent the best improvement in value for money since Sandy Bridge as the 8350K at $140 would be 34.8% cheaper than a 7600K at $215. Cynics among us will see this as an effort to fend off competition from AMD’s new multi-core Ryzen processors. It appears Intel may have been successful with this move as early benchmarks from the 8350K suggest that it beats the more expensive 8 core Ryzen 7 1700 in single and quad core performance by 25%. The 8350K is a great choice for gaming builds, but the budget will also need to factor in a complementary motherboard based on the new 300 series chipset. Expect the quad core i3-8100 which is the 8350K’s little sister featuring a base clock of 3.6 GHz, to follow shortly. [Aug '17 CPUPro]


The AMD Ryzen 7 1700 is the least powerful of three new Ryzen 7 CPUs. The 1700 model has base and turbo clocks of 3.0 and 3.7 GHz respectively. Both of its more expensive siblings, the 1700X and 1800X, have higher clocks but they also have TDPs of 95 watts whereas the 1700 is rated at just 65 watts. Comparing IPC between Ryzen and Kaby Lake shows that Kaby Lake leads by a maximum of 9% which is great news for workstation users as this allows the 1700 to beat Intel's 6850K in multi-core workloads at almost half the price. Although the 1700 has great IPC it's somewhat limited by its relatively low (by Kaby Lake standards) clock speed which holds it back a little in both gaming and desktop workloads. For multi-core workstation use, the Ryzen 7 1700 represents the best value for money we have ever seen. [Mar '17 CPUPro]


Processor Rankings (Price vs Performance) March 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]


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
  • - 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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Intel Core i7-8700K $325Nvidia GTX 1070 $76Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $148
Intel Core i5-8600K $235AMD RX 480 $400Samsung 850 Pro 256GB $160
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3000 C15 2x8GB $170SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
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