AMDFD837EWMHKBOX
IntelBX80684I58400

8 Cores, 8 Threads @3.3GHz, Piledriver.
Release date: Q3 2014.

6 Cores, 6 Threads @2.8GHz, Coffee Lake.
Release date: Q4 2017.

Real World Speed
Performance profile from 106,451 user samples
2,894 User Benchmarks
Best Bench: 62% Base clock 4.9 GHz, turbo 4.9 GHz (avg)
Worst Bench: 36% Base clock 3.3 GHz
Poor: 36% Great: 62%
SPEED RANK: 380th / 1173
Gaming
Gaming 49%
Yacht
Desktop
Desktop 49%
Yacht
Workstation
Workstation 38%
Jet ski
103,557 User Benchmarks
Best Bench: 94% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 79% Base clock 2.8 GHz, turbo 0.8 GHz (avg)
Poor: 79% Great: 94%
SPEED RANK: 58th / 1173
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
Effective Speed
Effective CPU Speed
48.6 % 88.6 % Hugely faster effective speed.
+82%
SC Mixed
Avg. Single Core Mixed Speed
68.1 Pts 116 Pts Much faster single-core speed.
+70%
QC Mixed
Avg. Quad Core Mixed Speed
234 Pts 450 Pts Hugely faster quad-core speed.
+92%
MC Mixed
Avg. Multi Core Mixed Speed
404 Pts 645 Pts Much faster multi-core speed.
+60%
SC Mixed
OC Single Core Mixed Speed
82.6 Pts 122 Pts Much faster OC single-core speed.
+48%
QC Mixed
OC Quad Core Mixed Speed
308 Pts 477 Pts Much faster OC quad-core speed.
+55%
MC Mixed
OC Multi Core Mixed Speed
537 Pts 697 Pts Faster OC multi-core speed.
+30%
Market Share
Based on 18,547,549 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.02 % 1.16 % Insanely higher market share.
+5,700%
Value
Value For Money
62.3 % 102 % Much better value.
+64%
User Rating
UBM User Rating
57 % 112 % Hugely more popular.
+96%
Price
Price (score)
$150 Cheaper.
+25%
$199
Age
Newest
58 Months 21 Months Much more recent.
+64%
TDP
Thermal Design Power (TDP)
95 Watts 65 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores
8 cores Much higher core count.
+33%
6 cores
Threads
CPU Processing Threads
8 threads Much higher thread count.
+33%
6 threads
Lithography
Manufacturing process
32 nm 14 nm Much newer manufacturing.
+56%
Base Clock
Base Clock Speed
3.3 GHz Faster base frequency.
+18%
2.8 GHz
Turbo Clock
Turbo Clock Speed
4.3 GHz Slightly faster turbo frequency.
+8%
4 GHz
SC Int
Single Core Integer Speed
88 Pts 118 Pts Much faster single-core int speed.
+34%
SC Float
Single Core Floating Point Speed
77.6 Pts 128 Pts Much faster single-core fp speed.
+65%
QC Int
Quad Core Integer Speed
327 Pts 460 Pts Much faster quad-core int speed.
+41%
QC Float
Quad Core Floating Point Speed
285 Pts 498 Pts Much faster quad-core fp speed.
+75%
MC Int
Multi Core Integer Speed
551 Pts 665 Pts Faster multi-core int speed.
+21%
MC Float
Multi Core Floating Point Speed
469 Pts 738 Pts Much faster multi-core fp speed.
+57%
Series
CPU Architecture
Piledriver Coffee Lake
Socket
Motherboard Socket
AM3+ FCLGA1151
Graphics
Integrated Graphics
None UHD 630
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The FX-8370E is an energy efficient Vishera eight core desktop processor based on AMD’s Piledriver architecture. It was launched in September 2014 and is the energy efficient version of the FX-8370 boasting a lower TDP of 95 Watts versus 125 Watts on the FX-8370. Comparing the 8370E and 8370 shows that the lower TDP comes at a cost: the 8370E scores a relatively lacklustre effective speed of 73 compared to the non-E version which scores 83. The lower score is consistent with the relative clock speeds: 3.3 GHz on the 8370E versus 4.0 GHz on the 8370. Priced the same as the 8370, there is a direct choice between being green or speedy. Or, if you don’t really need the above average multi-threaded performance that the 8370E offers, then you may be better off with the superb single-threaded performance from any number of Intel’s offerings. [Dec '14 CPUPro]

MORE DETAILS

The i5-8400 is a competitively priced hex-core processor from Intel’s 8th generation of Core processors (Coffee Lake). Along with the release of the unlocked i5-8600K, this is the first time that six-core processors have featured in the i5 line-up. Like the other Coffee Lake processors, the i5-8400 is based upon an improved version of Intel’s 14nm architecture which featured in both Skylake and Kaby Lake. Early benchmarks reveal that for average quad core usage (most games employ a maximum of four cores) the i5-8400 performs way above its pay grade. It achieves quad core mixed speeds close to Intel’s outgoing 2017 flagship the $300, quad-core, 8 thread i7-7700k, which to date has been a strong favourite for high-end gaming setups. On paper, the i5-8400 has a base clock of 2.8 GHz (Intel are significantly downplaying the performance of this SKU by giving it a relatively low nominal base clock), an all core boost of 3.8 GHz (this is the effective base clock figure that counts) and a single core boost of 4 GHz. This compares reasonably well to the i5-8600K which has a base clock of 3.6 GHz, all core boost of 4.1 GHz and a single core boost of 4.3 GHz. The i5-8400 also features 9MB of L3 cache and an energy-thrifty TDP of 65W. Priced at under $190, the i5-8400 offers fantastic value for money. Unfortunately, like the other Coffee Lake processors, the i5-8400 will require a new 300 series motherboard, and at the time of writing, the only available version is Intel’s high-end Z370 which isn't an ideal pairing for the i5-8400. The Z series motherboards are designed to cater for the unlocked and overclockable "K" SKUs. Cheaper 300 series motherboards will be available in 2018 at which time the 8400 will offer even better value for money. [Oct '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) July 2019 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.
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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.

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How it works

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  • - CPU tests include: integer, floating and string.
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  • - 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.

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