IntelBX80684I78700K
AMDFD8350FRHKBOX

6 Cores, 12 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2017.

8 Cores, 8 Threads @4.0GHz, Piledriver.
Release date: Q4 2012.

Real World Speed
Performance profile from 1,041,568 user samples
699,090 User Benchmarks
Best Bench: 99% Base clock 3.7 GHz, turbo 5.05 GHz (avg)
Worst Bench: 78% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 78% Great: 99%
SPEED RANK: 84th / 1358
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 81%
Aircraft carrier
342,478 User Benchmarks
Best Bench: 73% Base clock 4.7 GHz, turbo 4.7 GHz (avg)
Worst Bench: 56% Base clock 4 GHz, turbo 4 GHz (avg)
Poor: 56% Great: 73%
SPEED RANK: 425th / 1358
Gaming
Gaming 67%
Battle cruiser
Desktop
Desktop 68%
Battle cruiser
Workstation
Workstation 55%
Gunboat
Effective Speed
Effective CPU Speed
89.4 % Much faster effective speed.
+34%
66.6 %
Memory
Avg. Memory Latency
91.3 Pts Lower memory latency.
+11%
82.2 Pts
1-Core
Avg. Single Core Mixed Speed
129 Pts Much faster single-core speed.
+73%
74.4 Pts
2-Core
Avg. Dual Core Mixed Speed
251 Pts Much faster dual-core speed.
+73%
145 Pts
4-Core
Avg. Quad Core Mixed Speed
471 Pts Much faster quad-core speed.
+71%
276 Pts
8-Core
Avg. Octa Core Mixed Speed
789 Pts Much faster octa-core speed.
+63%
484 Pts
Memory
OC Memory Latency
96.8 Pts Slightly lower OC memory latency.
+5%
91.9 Pts
1-Core
OC Single Core Mixed Speed
146 Pts Much faster OC single-core speed.
+78%
82.2 Pts
2-Core
OC Dual Core Mixed Speed
288 Pts Much faster OC dual-core speed.
+79%
161 Pts
4-Core
OC Quad Core Mixed Speed
550 Pts Much faster OC quad-core speed.
+76%
313 Pts
8-Core
OC Octa Core Mixed Speed
916 Pts Much faster OC octa-core speed.
+65%
555 Pts
Market Share
Based on 54,507,666 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.11 % Hugely higher market share.
+217%
0.35 %
Value
Value For Money
87.6 % Slightly better value.
+7%
82.1 %
User Rating
UBM User Rating
81 % Much more popular.
+45%
56 %
Price
Price (score)
$300 $130 Much cheaper.
+57%
Age
Newest
58 Months Much more recent.
+51%
118 Months
TDP
Thermal Design Power (TDP)
95 Watts More energy efficient.
+24%
125 Watts
Cores
CPU Processing Cores
6 cores 8 cores Much higher core count.
+33%
Threads
CPU Processing Threads
12 threads Much higher thread count.
+50%
8 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
3.7 GHz 4 GHz Slightly faster base frequency.
+8%
Turbo Clock
Turbo Clock Speed
4.7 GHz Faster turbo frequency.
+12%
4.2 GHz
64-Core
OC Multi Core Mixed Speed
1165 Pts Hugely faster OC 64-core speed.
+109%
558 Pts
64-Core
Avg. Multi Core Mixed Speed
1001 Pts Hugely faster 64-core speed.
+105%
488 Pts
Series
CPU Architecture
Coffee Lake Piledriver
Socket
Motherboard Socket
FCLGA1151 AM3+
Graphics
Integrated Graphics
UHD 630 None
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The i7-8700K is Intel’s latest, top of the range, 8th generation Coffee Lake processor. Like Kaby Lake and Sky Lake before that, Coffee Lake is based on Intel’s 14nm architecture which has been slightly optimized on each iteration. Following AMD’s modus operandi, Intel has upped the cores and threads across the range of their CPUs. In previous generations, a 6-core processor would have been a high-end desk-top (HEDT) processor, however the i7-8700K is the first Intel CPU with 6 cores and 12 threads to be classified (and priced) as a mainstream consumer processor. Specifically, the i7-8700K features a base clock speed of 3.7 GHz which boosts to 4.7 GHz (4.5 GHz for the previous generation i7-7700k), 12MB of smart (L3) cache and 2 channels of DDR4 RAM. The majority of the performance improvements over the 7th generation stem from the higher core count which results in a 50% increase in multi-core speed between the i7-7700k and i7-8700k. A new motherboard will need to be factored into the budget when upgrading to the 8700K as it requires a new Intel Z370 chipset which has supposedly been designed to better deliver power to CPUs with a greater number of cores. Also available in this latest release of CPUs is the 6 core 6 thread i5-8600k which is a more rational option (around $100 cheaper) for the vast majority of users that don’t require hyper-threading. Sandy bridge owners can finally justify an upgrade but with the next iteration of AMD's Zen architecture just around the corner the CPU market will be a lot faster moving now that Intel, once again, has to compete. [Sep '17 CPUPro]

MORE DETAILS

In terms of raw single-core performance the flagship AMD FX-8350 is lagging behind intel's processor line-up by over two generations. The PassMark Single Thread scores for the i5-2500K vs the FX-8350 are 1863 to 1520 which shows that in terms of raw per-core processing the FX-8350 is lagging the two year old i5 by 23%. Where the AMD FX makes up is on multi-core performance, with a score of 9156 vs 6745, the AMD leads the Intel 2500K by 36% making it the far more capable multi-threaded server orientated performer. The 8350 is also cheaper but significantly more power hungry which counts strongly against it as a server proposition. The FX-8350 could be a good fit for specific server use cases but for general consumer use, which is single and dual core intensive, Intel's two year old i5-2500K delivers better performance. [May '13 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) August 2022 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]

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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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.

 Frequently Asked Questions

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The Best.
CPUGPUSSD
Intel Core i5-12600K $275Nvidia RTX 3060-Ti $470Crucial MX500 250GB $40
Intel Core i5-12400F $160Nvidia RTX 3070 $535Samsung 850 Evo 120GB $106
Intel Core i7-12700K $350Nvidia RTX 3050 $325Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $58SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $33Corsair Vengeance LPX DDR4 3000 C15 2x8GB $64SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $449SanDisk Ultra Fit 32GB $16
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