IntelBX80677I77700K
AMDFD8320FRHKBOX

4 Cores, 8 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

8 Cores, 8 Threads @3.5GHz, Piledriver.
Release date: Q4 2012.

Real World Speed
Performance profile from 268,823 user samples
211,346 User Benchmarks
Best Bench: 110% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 84% Base clock 4.2 GHz, turbo 1.1 GHz (avg)
Poor: 84% Great: 110%
SPEED RANK: 26th / 1137
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 72%
Battleship
57,477 User Benchmarks
Best Bench: 59% Base clock 4.5 GHz, turbo 4.5 GHz (avg)
Worst Bench: 39% Base clock 3.5 GHz, turbo 1.35 GHz (avg)
Poor: 39% Great: 59%
SPEED RANK: 333rd / 1137
Gaming
Gaming 50%
Yacht
Desktop
Desktop 50%
Yacht
Workstation
Workstation 40%
Jet ski
Effective Speed
Effective CPU Speed
96 % Hugely faster effective speed.
+93%
49.8 %
SC Mixed
Avg. Single Core Mixed Speed
136 Pts Hugely faster single-core speed.
+101%
67.5 Pts
QC Mixed
Avg. Quad Core Mixed Speed
467 Pts Hugely faster quad-core speed.
+92%
243 Pts
MC Mixed
Avg. Multi Core Mixed Speed
726 Pts Much faster multi-core speed.
+71%
425 Pts
SC Mixed
OC Single Core Mixed Speed
152 Pts Hugely faster OC single-core speed.
+91%
79.5 Pts
QC Mixed
OC Quad Core Mixed Speed
555 Pts Hugely faster OC quad-core speed.
+90%
292 Pts
MC Mixed
OC Multi Core Mixed Speed
811 Pts Much faster OC multi-core speed.
+57%
516 Pts
Market Share
Based on 12,131,440 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.89 % Hugely higher market share.
+205%
0.62 %
Value
Value For Money
89.2 % Slightly better value.
+6%
84.2 %
User Rating
UBM User Rating
132 % Hugely more popular.
+116%
61 %
Price
Price (score)
$355 $72 Much cheaper.
+80%
Age
Newest
22 Months Much more recent.
+70%
73 Months
TDP
Thermal Design Power (TDP)
91 Watts More energy efficient.
+27%
125 Watts
Cores
CPU Processing Cores
4 cores 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
4.2 GHz Faster base frequency.
+20%
3.5 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Slightly faster turbo frequency.
+12%
4 GHz
SC Int
Single Core Integer Speed
148 Pts Much faster single-core int speed.
+75%
84.7 Pts
SC Float
Single Core Floating Point Speed
157 Pts Hugely faster single-core fp speed.
+108%
75.4 Pts
QC Int
Quad Core Integer Speed
537 Pts Much faster quad-core int speed.
+74%
308 Pts
QC Float
Quad Core Floating Point Speed
580 Pts Hugely faster quad-core fp speed.
+113%
272 Pts
MC Int
Multi Core Integer Speed
743 Pts Much faster multi-core int speed.
+39%
534 Pts
MC Float
Multi Core Floating Point Speed
861 Pts Hugely faster multi-core fp speed.
+89%
455 Pts
Series
CPU Architecture
Kaby Lake Piledriver
Socket
Motherboard Socket
FCLGA1151 AM3+
Graphics
Integrated Graphics
HD 630 None
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The Core i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '17 CPUPro]

MORE DETAILS

The AMD FX-8320 has the same architecture and specs as the FX-8350, the only difference being the base/turbo clocks of 3.5/4.0 GHz for the 8320 vs 4.0/4.2 GHz for the 8350. Comparing the two models shows that the 8320 lags the 8350 at stock speeds by around 10% but broadly matches it when both processors are overclocked. This combined with the 8320's considerably lower price tag makes the 8320 the better value proposition. In terms of outright performance, as with all AMD CPUs, the FX series have very strong multi-core performance but lag Intel considerably in terms of single and dual-core throughput. [Mar '14 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) November 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]

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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.
  • - 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 i7-8700K $359Nvidia GTX 1070 $330Samsung 850 Evo 250GB $85
AMD Ryzen 5 1600 $130Nvidia GTX 1060-6GB $243Samsung 850 Evo 500GB $103
Intel Core i5-8600K $237Nvidia GTX 1080-Ti $770Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $130SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
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