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IntelBX80684I58400
IntelBX80646I54590
$188
▲ 625,396 ▼

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

VS
▲ 626,343 ▼
 $188 

4 Cores, 4 Threads @3.3GHz, Haswell.
Release date: Q3 2014.

Effective Speed 
+29%
Real World Speed
Performance profile from 463,586 user samples
Benchmark your CPU here
312,220 User Benchmarks
Best Bench: 89% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 61% Base clock 2.8 GHz, turbo 0.8 GHz (avg)
Poor: 61% Great: 89%
SPEED RANK: 231st / 1468
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 66%
Battle cruiser
151,366 User Benchmarks
Best Bench: 73% Base clock 3.3 GHz, turbo 3.7 GHz (avg)
Worst Bench: 45% Base clock 3.3 GHz, turbo 0.8 GHz (avg)
Poor: 45% Great: 73%
SPEED RANK: 550th / 1468
Gaming
Gaming 63%
Destroyer
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 47%
Yacht
Effective Speed
Effective CPU Speed 		81.8 % Faster effective speed.
+29% 		63.5 %
Average Score 
+39%
Memory
Avg. Memory Latency 		84.9 Pts Lower memory latency.
+10% 		76.9 Pts
1-Core
Avg. Single Core Speed 		113 Pts Faster single-core speed.
+25% 		90.6 Pts
2-Core
Avg. Dual Core Speed 		224 Pts Faster dual-core speed.
+26% 		178 Pts
4-Core
Avg. Quad Core Speed 		434 Pts Much faster quad-core speed.
+51% 		287 Pts
8-Core
Avg. Octa Core Speed 		564 Pts Hugely faster octa-core speed.
+84% 		307 Pts
Overclocked Score 
+32%
Memory
OC Memory Latency 		94.2 Pts +3% 91.7 Pts
1-Core
OC Single Core Speed 		120 Pts Faster OC single-core speed.
+20% 		100 Pts
2-Core
OC Dual Core Speed 		237 Pts Faster OC dual-core speed.
+21% 		196 Pts
4-Core
OC Quad Core Speed 		471 Pts Much faster OC quad-core speed.
+35% 		350 Pts
8-Core
OC Octa Core Speed 		657 Pts Hugely faster OC octa-core speed.
+82% 		361 Pts
Value & Sentiment 
+68%
Market Share
Based on 69,001,903 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		1.26 % Hugely higher market share.
+186% 		0.44 %
Value
Value For Money 		104 % Much better value.
+48% 		70.7 %
User Rating
UBM User Rating 		62 % 62 %
Price
Price (score) 		$115 Much cheaper.
+39% 		$188
Nice To Haves 
+40%
Age
Newest 		85 Months Much more recent.
+31% 		124 Months
TDP
Thermal Design Power (TDP) 		65 Watts More energy efficient.
+23% 		84 Watts
Cores
CPU Processing Cores 		6 cores Much higher core count.
+50% 		4 cores
Threads
CPU Processing Threads 		6 threads Much higher thread count.
+50% 		4 threads
Lithography
Manufacturing process 		14 nm Much newer manufacturing.
+36% 		22 nm
Base Clock
Base Clock Speed 		2.8 GHz 3.3 GHz Faster base frequency.
+18%
Turbo Clock
Turbo Clock Speed 		4 GHz Slightly faster turbo frequency.
+8% 		3.7 GHz
64-Core
OC Multi Core Speed 		675 Pts Hugely faster OC 64-core speed.
+87% 		361 Pts
64-Core
Avg. Multi Core Speed 		588 Pts Hugely faster 64-core speed.
+90% 		309 Pts
Specifications 
Series
CPU Architecture 		Coffee Lake Haswell
Socket
Motherboard Socket 		FCLGA1151 FCLGA1150
Graphics
Integrated Graphics 		UHD 630 HD 4600
Launch Date
Launch Date 		Q4'17 Q2'14
Cache
Cache 		9 MB 6 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography 		14 nm 22 nm
Recommended Price
Recommended Customer Price 		N/A $192.00 - $202.00
Max Turbo Frequency
Max Turbo Frequency 		4.00 GHz 3.7 GHz
Bus Speed
Bus Speed 		8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification 		PCG 2015C (65W) PCG 2013D
Max Memory Size
Max Memory Size (dependent on memory type) 		64 GB 32 GB
Memory Types
Memory Types 		DDR4-2666 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Processor Graphics
Processor Graphics ‡ 		Intel® UHD Graphics 630 Intel® HD Graphics 4600
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.05 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory 		64 GB 2 GB
vPro Tech
Intel® vPro™ Technology ‡ 		No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP) 		No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		No Yes
PCI Express Revision
PCI Express Revision 		3.0 Up to 3.0
PCI Express Configurations
PCI Express Configurations ‡ 		Up to 1x16 or 2x8 or 1x8+2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
Conclusion 
Average Bench 81.8%
Average Bench 63.5%

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 Intel Core i5-4590 is a slightly upgraded version of the i5-4570. The two processors are identical apart from a 100 MHz increase in base and turbo frequencies. Needless to say the two processors have almost identical effective speeds which is a little disappointing as Intel has simply re-released a near identical product. From a value for money perspective the 4590 does fare reasonably well although it probably has more multi-core horsepower than most use cases demand. For the majority of users, at stock clocks, the G3258 provides comparable performance but with a few simple BIOS adjustments the G3258 can be clocked up to 4.3 GHz where, even at half the price, it destroys the i5-4570 in single and dual core workloads. [Sep '14 CPUPro]

MORE DETAILS

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