UserBenchmark: Intel Core i3-8100 vs i5-8400

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IntelBX80684I38100

BUY • $110

IntelBX80684I58400

BUY • $131

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Real World Speed

Performance profile from 393,612 user samples

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81,392 User Benchmarks

Best Bench: 80% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Worst Bench: 53% Base clock 3.6 GHz, turbo 3.6 GHz (avg)

Poor: 53% Great: 80%

SPEED RANK: 388^th / 1442

Gaming 71%

Battleship

Desktop 77%

Battleship

Workstation 53%

Yacht

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: 212^th / 1442

Gaming 82%

Aircraft carrier

Desktop 83%

Aircraft carrier

Workstation 66%

Battle cruiser


Effective Speed Effective CPU Speed		70.6 %			81.8 %	Faster effective speed. +16%


14 Nov19\|PCGamer AMD Ryzen 9 3950X review					24 %	Hitm2 36%, FarC5 18%, StrangeB 0%, TWarW2 28%, SotTR 30%, ACO 34%, MetroEx 9%, MESoW 5%, Divis2 58%


Memory Avg. Memory Latency	81.8 Pts	84.9 Pts	+4%
1-Core Avg. Single Core Speed	106 Pts	113 Pts	Slightly faster single-core speed. +7%
2-Core Avg. Dual Core Speed	210 Pts	224 Pts	Slightly faster dual-core speed. +7%
4-Core Avg. Quad Core Speed	342 Pts	434 Pts	Faster quad-core speed. +27%
8-Core Avg. Octa Core Speed	359 Pts	564 Pts	Much faster octa-core speed. +57%


Memory OC Memory Latency	93.4 Pts	94.2 Pts	+1%
1-Core OC Single Core Speed	112 Pts	120 Pts	Slightly faster OC single-core speed. +7%
2-Core OC Dual Core Speed	224 Pts	237 Pts	Slightly faster OC dual-core speed. +6%
4-Core OC Quad Core Speed	408 Pts	471 Pts	Faster OC quad-core speed. +15%
8-Core OC Octa Core Speed	419 Pts	657 Pts	Much faster OC octa-core speed. +57%

Market Share

Based on 67,714,564 CPUs tested

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Market Share Market Share (trailing 30 days)	0.28 %		1.05 %	Hugely higher market share. +275%
Value Value For Money	91.2 %		101 %	Better value. +10%
User Rating UBM User Rating	67 %	Slightly more popular. +10%	61 %
Price Price (score)	$110	Cheaper. +16%	$131


Age Newest	78 Months		78 Months
TDP Thermal Design Power (TDP)	65 Watts		65 Watts
Cores CPU Processing Cores	4 cores		6 cores	Much higher core count. +50%
Threads CPU Processing Threads	4 threads		6 threads	Much higher thread count. +50%
Lithography Manufacturing process	14 nm		14 nm
Base Clock Base Clock Speed	3.6 GHz	Faster base frequency. +29%	2.8 GHz
Turbo Clock Turbo Clock Speed	3.6 GHz		4 GHz	Faster turbo frequency. +11%
64-Core OC Multi Core Speed	420 Pts		675 Pts	Much faster OC 64-core speed. +61%
64-Core Avg. Multi Core Speed	364 Pts		588 Pts	Much faster 64-core speed. +62%


Series CPU Architecture	Coffee Lake	Coffee Lake
Socket Motherboard Socket	FCLGA1151	FCLGA1151
Graphics Integrated Graphics	UHD 630	UHD 630
Cache Cache	6 MB	9 MB
Memory Types Memory Types	DDR4-2400	DDR4-2666
Graphics Max Dynamic Frequency Graphics Max Dynamic Frequency	1.10 GHz	1.05 GHz
Turbo Boost Tech Intel® Turbo Boost Technology ‡	No	2.0
	More specs »	More specs »

Intel’s i3-8100 from their 8th generation of Core processors is a mainstream quad-core CPU. It is the entry model of the latest Coffee Lake line up with a clock speed of 3.6 GHz. Previously, i3 Kaby Lake processors had two cores with hyperthreading, but now, i3 Coffee Lake processors have 4 cores and offer much better value for money in terms of dollars per core. With a performance profile that closely matches last years mid range Kaby Lake i5's (the then go-to mid range gaming choice) and a price tag of just $120, the i3-8100 represents excellent value for money. Unfortunately, like all Coffe Lake processors, the i3-8100 does require a new 300-series motherboard even though it shares the same LGA1151 socket as the previous generation of Kaby Lake 200 motherboards. Intel were clearly mindful of AMD's similarly priced quad core Ryzen 3 1200 which achieves very comparable single, and quad-core benchmarks to the i3-8100. ^{[Oct '17 CPUPro]}

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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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CPU	GPU	SSD
Intel Core i5-13600K $279	Nvidia RTX 4060 $300	Crucial MX500 250GB $40
Intel Core i5-12400F $134	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184	Nvidia RTX 4070 $409	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

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