IntelBX80684I58400
AMDFD6300WMHKBOX

6 Cores, 6 Threads
@2.8GHz Coffee Lake (2017)

6 Cores, 6 Threads
@3.5GHz Piledriver (2012)

Real World Speed
Performance profile from 112,803 user samples
19,393 User Benchmarks
Best Bench: 94% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 82% Base clock 2.8 GHz, turbo 1.4 GHz (avg)
Poor: 82% Great: 94%
SPEED RANK: 32nd / 1117
Gaming
Gaming 90%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 65%
Battle cruiser
93,410 User Benchmarks
Best Bench: 55% Base clock 4.75 GHz, turbo 4.75 GHz (avg)
Worst Bench: 36% Base clock 3.5 GHz, turbo 3.5 GHz (avg)
Poor: 36% Great: 55%
SPEED RANK: 368th / 1117
Gaming
Gaming 46%
Yacht
Desktop
Desktop 48%
Yacht
Workstation
Workstation 32%
Sail boat
Effective Speed
Effective CPU Speed
89.7 % Hugely faster effective speed.
+93%
46.4 %
SC Mixed
Avg. Single Core Mixed Speed
117 Pts Much faster single-core speed.
+73%
67.7 Pts
QC Mixed
Avg. Quad Core Mixed Speed
455 Pts Hugely faster quad-core speed.
+100%
227 Pts
MC Mixed
Avg. Multi Core Mixed Speed
661 Pts Hugely faster multi-core speed.
+113%
310 Pts
SC Mixed
OC Single Core Mixed Speed
123 Pts Much faster OC single-core speed.
+59%
77.5 Pts
QC Mixed
OC Quad Core Mixed Speed
478 Pts Much faster OC quad-core speed.
+73%
277 Pts
MC Mixed
OC Multi Core Mixed Speed
707 Pts Hugely faster OC multi-core speed.
+85%
383 Pts
Market Share
Based on 9,763,778 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.55 % Higher market share.
+17%
1.32 %
Value
Value For Money
108 % Better value.
+28%
84 %
User Rating
UBM User Rating
108 % Much more popular.
+64%
66 %
Price
Price (score)
$179 $60 Much cheaper.
+66%
Age
Newest
9 Months Hugely more recent.
+87%
69 Months
TDP
Thermal Design Power (TDP)
65 Watts Much more energy efficient.
+32%
95 Watts
Cores
CPU Processing Cores
6 cores 6 cores
Threads
CPU Processing Threads
6 threads 6 threads
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 4.1 GHz +2%
SC Int
Single Core Integer Speed
118 Pts Much faster single-core int speed.
+42%
83.2 Pts
SC Float
Single Core Floating Point Speed
128 Pts Much faster single-core fp speed.
+75%
73 Pts
QC Int
Quad Core Integer Speed
461 Pts Much faster quad-core int speed.
+60%
288 Pts
QC Float
Quad Core Floating Point Speed
499 Pts Hugely faster quad-core fp speed.
+98%
252 Pts
MC Int
Multi Core Integer Speed
681 Pts Much faster multi-core int speed.
+74%
391 Pts
MC Float
Multi Core Floating Point Speed
741 Pts Hugely faster multi-core fp speed.
+122%
334 Pts
Series
CPU Architecture
Coffee Lake (2017) Piledriver (2012)
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]

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The FX 6-Core, like most CPUs from AMD, delivers reasonably good server orientated multi threaded performance and consequently good processing thoughput at a reasonable price tag. Where the FX 6-Core lacks is in the area of single core performance which although not normally a major problem for server workloads, is always very relevant to desktop users. The overall performance of the FX 6-Core is comparable to Intel's five years younger Core i7-950. There are server orientated use cases where the FX 6-Core will excel thanks to its excellent overall throughput and in those instances the FX 6-Core represents good value for money. But typical desktop users will find far better value elsewhere[Sep '13 CPUPro]

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Processor Rankings (Price vs Performance) July 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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.

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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.

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CPUGPUSSD
Intel Core i7-8700K $318Nvidia GTX 1070 $413Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $289Samsung 850 Evo 500GB $121
Intel Core i7-7700K $275AMD RX 480 $280Samsung 850 Pro 256GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $176SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $74G.SKILL Trident Z DDR4 3200 C14 4x16GB $951SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $219SanDisk Ultra Fit 32GB $12
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