IntelBX80677I77700K
AMDFD8320FRHKBOX

4 Cores, 8 Threads
@4.2GHz Kaby Lake (2017)

8 Cores, 8 Threads
@3.5GHz Piledriver (2012)

Real World Speed
Performance profile from 136,489 user samples
102,750 User Benchmarks
Best Bench: 113% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 87% Base clock 4.2 GHz
Poor: 87% Great: 113%
SPEED RANK: 14th / 980
Gaming
Gaming 100%
UFO
Desktop
Desktop 101%
UFO
Workstation
Workstation 74%
Battleship
33,739 User Benchmarks
Best Bench: 61% Base clock 4.9 GHz, turbo 4.85 GHz (avg)
Worst Bench: 42% Base clock 3.5 GHz, turbo 1.35 GHz (avg)
Poor: 42% Great: 61%
SPEED RANK: 250th / 980
Gaming
Gaming 51%
Yacht
Desktop
Desktop 51%
Yacht
Workstation
Workstation 41%
Speed boat
Effective Speed
Effective CPU Speed
100 % Hugely faster effective speed.
+95%
51.4 % -95%
SC Mixed
Avg. Single Core Mixed Speed
140 Pts Hugely faster single-core speed.
+100%
70 Pts -100%
QC Mixed
Avg. Quad Core Mixed Speed
492 Pts Hugely faster quad-core speed.
+97%
250 Pts -97%
MC Mixed
Avg. Multi Core Mixed Speed
743 Pts Much faster multi-core speed.
+71%
434 Pts -71%
SC Mixed
OC Single Core Mixed Speed
155 Pts Hugely faster OC single-core speed.
+91%
81.2 Pts -91%
QC Mixed
OC Quad Core Mixed Speed
565 Pts Hugely faster OC quad-core speed.
+86%
303 Pts -86%
MC Mixed
OC Multi Core Mixed Speed
830 Pts Much faster OC multi-core speed.
+54%
538 Pts -54%
Market Share
Based on 5,943,008 CPUs tested.
Market Share
Market Share (trailing 30 days)
3.56 % Hugely higher market share.
+465%
0.63 % -465%
Value
Value For Money
102 % Much better value.
+32%
77 % -32%
User Rating
UBM User Rating
163 % Hugely more popular.
+143%
67 % -143%
Price
Price (score)
$280 -65% $99 Much cheaper.
+65%
Age
Newest
10 Months Hugely more recent.
+84%
61 Months -84%
TDP
Thermal Design Power (TDP)
91 Watts More energy efficient.
+27%
125 Watts -27%
Cores
CPU Processing Cores
4 cores -100% 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
8 threads 0% 8 threads 0%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm -56%
Base Clock
Base Clock Speed
4.2 GHz Faster base frequency.
+20%
3.5 GHz -20%
Turbo Clock
Turbo Clock Speed
4.5 GHz Slightly faster turbo frequency.
+12%
4 GHz -12%
SC Int
Single Core Integer Speed
152 Pts Much faster single-core int speed.
+73%
87.8 Pts -73%
SC Float
Single Core Floating Point Speed
158 Pts Hugely faster single-core fp speed.
+108%
76.1 Pts -108%
QC Int
Quad Core Integer Speed
554 Pts Much faster quad-core int speed.
+68%
329 Pts -68%
QC Float
Quad Core Floating Point Speed
588 Pts Hugely faster quad-core fp speed.
+111%
279 Pts -111%
MC Int
Multi Core Integer Speed
765 Pts Much faster multi-core int speed.
+40%
545 Pts -40%
MC Float
Multi Core Floating Point Speed
872 Pts Hugely faster multi-core fp speed.
+86%
469 Pts -86%
Series
CPU Architecture
Kaby Lake (2017) Piledriver (2012)
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 2017 CPU Rankings.

Welcome to our desktop CPU comparison. We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by price to yield a value for money rating which is geared towards gamers. Calculated values don't always paint the whole picture so we check them against hundreds of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top CPUs. [CPUPro]

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 i7-7700K $280Nvidia GTX 1070 $410Samsung 850 Evo 250GB $88
AMD Ryzen 7 1700 $250AMD RX 480 $240Samsung 850 Pro 256GB $110
Intel Core i5-7600K $180Nvidia GTX 1060-6GB $240Samsung 850 Evo 500GB $150
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $160SanDisk Extreme 64GB $30
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $17
Seagate Barracuda 7200.14 1TB $52Corsair Vengeance LPX DDR4 3200 C16 2x8GB $195SanDisk Ultra Fit 32GB $12
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