IntelBX80684I58400
AMDFD8320FRHKBOX

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

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

Real World Speed
Performance profile from 99,034 user samples
41,557 User Benchmarks
Best Bench: 94% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 82% Base clock 2.8 GHz, turbo 1.3 GHz (avg)
Poor: 82% Great: 94%
SPEED RANK: 37th / 1137
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
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
89.3 % Much faster effective speed.
+79%
49.8 %
SC Mixed
Avg. Single Core Mixed Speed
117 Pts Much faster single-core speed.
+73%
67.5 Pts
QC Mixed
Avg. Quad Core Mixed Speed
453 Pts Hugely faster quad-core speed.
+86%
243 Pts
MC Mixed
Avg. Multi Core Mixed Speed
655 Pts Much faster multi-core speed.
+54%
425 Pts
SC Mixed
OC Single Core Mixed Speed
122 Pts Much faster OC single-core speed.
+53%
79.5 Pts
QC Mixed
OC Quad Core Mixed Speed
478 Pts Much faster OC quad-core speed.
+64%
292 Pts
MC Mixed
OC Multi Core Mixed Speed
702 Pts Much faster OC multi-core speed.
+36%
516 Pts
Market Share
Based on 12,131,818 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.02 % Much higher market share.
+65%
0.62 %
Value
Value For Money
103 % Better value.
+22%
84.2 %
User Rating
UBM User Rating
116 % Hugely more popular.
+90%
61 %
Price
Price (score)
$200 $72 Much cheaper.
+64%
Age
Newest
13 Months Hugely more recent.
+82%
73 Months
TDP
Thermal Design Power (TDP)
65 Watts Much more energy efficient.
+48%
125 Watts
Cores
CPU Processing Cores
6 cores 8 cores Much higher core count.
+33%
Threads
CPU Processing Threads
6 threads 8 threads Much higher thread count.
+33%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
2.8 GHz 3.5 GHz Faster base frequency.
+25%
Turbo Clock
Turbo Clock Speed
4 GHz 4 GHz
SC Int
Single Core Integer Speed
118 Pts Much faster single-core int speed.
+39%
84.7 Pts
SC Float
Single Core Floating Point Speed
128 Pts Much faster single-core fp speed.
+70%
75.4 Pts
QC Int
Quad Core Integer Speed
461 Pts Much faster quad-core int speed.
+50%
308 Pts
QC Float
Quad Core Floating Point Speed
501 Pts Hugely faster quad-core fp speed.
+84%
272 Pts
MC Int
Multi Core Integer Speed
675 Pts Faster multi-core int speed.
+26%
534 Pts
MC Float
Multi Core Floating Point Speed
740 Pts Much faster multi-core fp speed.
+63%
455 Pts
Series
CPU Architecture
Coffee Lake Piledriver
Socket
Motherboard Socket
FCLGA1151 AM3+
Graphics
Integrated Graphics
UHD 630 None
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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

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

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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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