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 28,823 user samples
9,865 User Benchmarks
Best Bench: 96% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 81% Base clock 2.8 GHz, turbo 1.4 GHz (avg)
Poor: 81% Great: 96%
SPEED RANK: 28th / 1100
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 67%
Battle cruiser
18,958 User Benchmarks
Best Bench: 64% Base clock 3.5 GHz, turbo 3.5 GHz (avg)
Worst Bench: 46% Base clock 3.5 GHz, turbo 3.5 GHz (avg)
Poor: 46% Great: 64%
SPEED RANK: 233rd / 1100
Gaming
Gaming 59%
Gunboat
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 35%
Sail boat
Effective Speed
Effective CPU Speed
91.4 % Much faster effective speed.
+55%
58.9 %
SC Mixed
Avg. Single Core Mixed Speed
119 Pts Faster single-core speed.
+17%
102 Pts
QC Mixed
Avg. Quad Core Mixed Speed
465 Pts Much faster quad-core speed.
+71%
272 Pts
MC Mixed
Avg. Multi Core Mixed Speed
678 Pts Hugely faster multi-core speed.
+145%
277 Pts
SC Mixed
OC Single Core Mixed Speed
125 Pts Slightly faster OC single-core speed.
+14%
110 Pts
QC Mixed
OC Quad Core Mixed Speed
487 Pts Much faster OC quad-core speed.
+65%
296 Pts
MC Mixed
OC Multi Core Mixed Speed
721 Pts Hugely faster OC multi-core speed.
+140%
300 Pts
Market Share
Based on 8,488,958 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.17 % Hugely higher market share.
+144%
0.48 %
Value
Value For Money
110 % +1% 109 %
User Rating
UBM User Rating
108 % Slightly more popular.
+15%
94 %
Price
Price (score)
$179 $57 Much cheaper.
+68%
Age
Newest
6 Months Much more recent.
+60%
15 Months
TDP
Thermal Design Power (TDP)
65 Watts 54 Watts More energy efficient.
+17%
Cores
CPU Processing Cores
6 cores Hugely higher core count.
+200%
2 cores
Threads
CPU Processing Threads
6 threads Much higher thread count.
+50%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
2.8 GHz 3.5 GHz Faster base frequency.
+25%
Turbo Clock
Turbo Clock Speed
4 GHz Slightly faster turbo frequency.
+14%
3.5 GHz
SC Int
Single Core Integer Speed
122 Pts Slightly faster single-core int speed.
+14%
107 Pts
SC Float
Single Core Floating Point Speed
129 Pts Faster single-core fp speed.
+15%
112 Pts
QC Int
Quad Core Integer Speed
474 Pts Much faster quad-core int speed.
+73%
274 Pts
QC Float
Quad Core Floating Point Speed
503 Pts Much faster quad-core fp speed.
+62%
311 Pts
MC Int
Multi Core Integer Speed
702 Pts Hugely faster multi-core int speed.
+155%
275 Pts
MC Float
Multi Core Floating Point Speed
744 Pts Hugely faster multi-core fp speed.
+138%
313 Pts
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) April 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.
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