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 85,675 user samples
4,322 User Benchmarks
Best Bench: 96% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 87% Base clock 2.8 GHz, turbo 1.7 GHz (avg)
Poor: 87% Great: 96%
SPEED RANK: 24th / 985
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 68%
Battle cruiser
81,353 User Benchmarks
Best Bench: 56% Base clock 4.8 GHz, turbo 4.8 GHz (avg)
Worst Bench: 37% Base clock 3.5 GHz, turbo 3.95 GHz (avg)
Poor: 37% Great: 56%
SPEED RANK: 300th / 985
Gaming
Gaming 48%
Yacht
Desktop
Desktop 49%
Yacht
Workstation
Workstation 33%
Sail boat
Effective Speed
Effective CPU Speed
92.6 % Hugely faster effective speed.
+94%
47.8 %
SC Mixed
Avg. Single Core Mixed Speed
120 Pts Much faster single-core speed.
+72%
69.9 Pts
QC Mixed
Avg. Quad Core Mixed Speed
472 Pts Hugely faster quad-core speed.
+102%
234 Pts
MC Mixed
Avg. Multi Core Mixed Speed
689 Pts Hugely faster multi-core speed.
+117%
317 Pts
SC Mixed
OC Single Core Mixed Speed
126 Pts Much faster OC single-core speed.
+58%
79.9 Pts
QC Mixed
OC Quad Core Mixed Speed
489 Pts Much faster OC quad-core speed.
+73%
282 Pts
MC Mixed
OC Multi Core Mixed Speed
725 Pts Hugely faster OC multi-core speed.
+87%
388 Pts
Market Share
Based on 7,391,389 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.49 % 1.33 % Hugely higher market share.
+171%
Value
Value For Money
111 % Much better value.
+46%
76 %
User Rating
UBM User Rating
112 % Much more popular.
+47%
76 %
Price
Price (score)
$179 $85 Much cheaper.
+53%
Age
Newest
4 Months Hugely more recent.
+94%
64 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
122 Pts Much faster single-core int speed.
+42%
85.9 Pts
SC Float
Single Core Floating Point Speed
129 Pts Much faster single-core fp speed.
+73%
74.4 Pts
QC Int
Quad Core Integer Speed
477 Pts Much faster quad-core int speed.
+63%
293 Pts
QC Float
Quad Core Floating Point Speed
504 Pts Hugely faster quad-core fp speed.
+98%
254 Pts
MC Int
Multi Core Integer Speed
708 Pts Much faster multi-core int speed.
+79%
395 Pts
MC Float
Multi Core Floating Point Speed
750 Pts Hugely faster multi-core fp speed.
+122%
338 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) February 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 (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.

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AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $140
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $200SanDisk Extreme 16GB $18
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