IntelBX80684I58400
IntelBX80677G4560

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

2 Cores, 4 Threads
@3.5GHz Kaby Lake (2017)

Real World Speed
Performance profile from 16,502 user samples
2,787 User Benchmarks
Best Bench: 96% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 86% Base clock 2.8 GHz, turbo 1.1 GHz (avg)
Poor: 86% Great: 96%
SPEED RANK: 24th / 981
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 68%
Battle cruiser
13,715 User Benchmarks
Best Bench: 64% Base clock 3.5 GHz, turbo 3.45 GHz (avg)
Worst Bench: 46% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 46% Great: 64%
SPEED RANK: 197th / 981
Gaming
Gaming 58%
Gunboat
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 35%
Sail boat
Effective Speed
Effective CPU Speed
92.3 % Much faster effective speed.
+58%
58.5 % -58%
SC Mixed
Avg. Single Core Mixed Speed
120 Pts Faster single-core speed.
+19%
101 Pts -19%
QC Mixed
Avg. Quad Core Mixed Speed
469 Pts Much faster quad-core speed.
+74%
270 Pts -74%
MC Mixed
Avg. Multi Core Mixed Speed
688 Pts Hugely faster multi-core speed.
+146%
280 Pts -146%
SC Mixed
OC Single Core Mixed Speed
126 Pts Slightly faster OC single-core speed.
+15%
110 Pts -15%
QC Mixed
OC Quad Core Mixed Speed
489 Pts Much faster OC quad-core speed.
+65%
296 Pts -65%
MC Mixed
OC Multi Core Mixed Speed
725 Pts Hugely faster OC multi-core speed.
+142%
300 Pts -142%
Market Share
Based on 6,894,829 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.61 % Higher market share.
+24%
0.49 % -24%
Value
Value For Money
106 % Slightly better value.
+7%
99.6 % -7%
User Rating
UBM User Rating
68 % -75% 119 % Much more popular.
+75%
Price
Price (score)
$200 -65% $70 Much cheaper.
+65%
Age
Newest
3 Months Much more recent.
+75%
12 Months -75%
TDP
Thermal Design Power (TDP)
65 Watts -17% 54 Watts More energy efficient.
+17%
Cores
CPU Processing Cores
6 cores Hugely higher core count.
+200%
2 cores -200%
Threads
CPU Processing Threads
6 threads Much higher thread count.
+50%
4 threads -50%
Lithography
Manufacturing process
14 nm 0% 14 nm 0%
Base Clock
Base Clock Speed
2.8 GHz -25% 3.5 GHz Faster base frequency.
+25%
Turbo Clock
Turbo Clock Speed
4 GHz Slightly faster turbo frequency.
+14%
3.5 GHz -14%
SC Int
Single Core Integer Speed
122 Pts Slightly faster single-core int speed.
+14%
107 Pts -14%
SC Float
Single Core Floating Point Speed
129 Pts Faster single-core fp speed.
+15%
112 Pts -15%
QC Int
Quad Core Integer Speed
476 Pts Much faster quad-core int speed.
+74%
274 Pts -74%
QC Float
Quad Core Floating Point Speed
504 Pts Much faster quad-core fp speed.
+62%
311 Pts -62%
MC Int
Multi Core Integer Speed
707 Pts Hugely faster multi-core int speed.
+157%
275 Pts -157%
MC Float
Multi Core Floating Point Speed
747 Pts Hugely faster multi-core fp speed.
+139%
312 Pts -139%
Series
CPU Architecture
Coffee Lake (2017) Kaby Lake (2017)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 HD 610
Launch Date
Launch Date
Q4'17 Q1'17
Cache
Cache
9 MB 3 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2
Recommended Price
Recommended Customer Price
N/A $64.00
Memory Types
Memory Types
DDR4-2666 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 610
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
TSX-NI
Intel® TSX-NI
No Yes
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
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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 Intel G4560 is one of the first Pentium processors to feature Hyper-threading. This means that although the G4560 only has two physical processing cores, it is able to process four threads in parallel by sharing resources between the physical cores. This typically results in a 50% performance improvement over two physical cores alone. Comparing performance between the lowest spec Kaby Lake i3 7100 and the Pentium G4560 shows that in terms of both performance and specs, very little separates them (even virtualization technology VT-d is present on the Pentium). The Pentium does lack AVX 2.0 (Advanced Vector Instructions) and it trails the i3 7100 by 400 MHz (10%) but there is no longer a clear divide between Pentiums and Core i3s. Intel have achieved an almost continuous distribution of performance levels for each price point from the cheapest Pentium to the top end i7-7700K[Jan '17 CPUPro]

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Processor Rankings (Price vs Performance) January 2018 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.

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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.
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  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
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CPUGPUSSD
Intel Core i7-7700K $280Nvidia GTX 1070 $430Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $290Nvidia GTX 1060-6GB $275Samsung 850 Evo 500GB $140
Intel Core i5-7600K $210AMD RX 480 $400Samsung 850 Pro 256GB $110
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $205SanDisk Extreme 64GB $65
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $220SanDisk Ultra Fit 32GB $12
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