UserBenchmark: Intel Core i5-8600K vs i9-7900X

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IntelBX80684I58600K

BUY • $173

IntelBX80673I97900X

BUY • $393

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Real World Speed

Performance profile from 284,269 user samples

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264,837 User Benchmarks

Best Bench: 101% Base clock 3.6 GHz, turbo 4.95 GHz (avg)
Worst Bench: 79% Base clock 3.6 GHz, turbo 4.05 GHz (avg)

Poor: 79% Great: 101%

SPEED RANK: 136^th / 1442

Gaming 91%

Nuclear submarine

Desktop 92%

Nuclear submarine

Workstation 74%

Battleship

19,432 User Benchmarks

Best Bench: 92% Base clock 3.3 GHz, turbo 4.95 GHz (avg)
Worst Bench: 72% Base clock 3.3 GHz, turbo 0.7 GHz (avg)

Poor: 72% Great: 92%

SPEED RANK: 209^th / 1442

Gaming 82%

Aircraft carrier

Desktop 83%

Aircraft carrier

Workstation 89%

Aircraft carrier


Effective Speed Effective CPU Speed		90.7 %	Faster effective speed. +11%		81.9 %


Memory Avg. Memory Latency	90.1 Pts	Lower memory latency. +18%	76.1 Pts
1-Core Avg. Single Core Speed	129 Pts	+5%	123 Pts
2-Core Avg. Dual Core Speed	257 Pts	Slightly faster dual-core speed. +6%	243 Pts
4-Core Avg. Quad Core Speed	502 Pts	Slightly faster quad-core speed. +7%	470 Pts
8-Core Avg. Octa Core Speed	656 Pts		898 Pts	Much faster octa-core speed. +37%


Memory OC Memory Latency	96.5 Pts	Lower OC memory latency. +10%	87.6 Pts
1-Core OC Single Core Speed	151 Pts	Slightly faster OC single-core speed. +9%	138 Pts
2-Core OC Dual Core Speed	302 Pts	Slightly faster OC dual-core speed. +9%	276 Pts
4-Core OC Quad Core Speed	594 Pts	Slightly faster OC quad-core speed. +8%	548 Pts
8-Core OC Octa Core Speed	798 Pts		1069 Pts	Much faster OC octa-core speed. +34%

Market Share

Based on 67,820,908 CPUs tested

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Market Share Market Share (trailing 30 days)	0.48 %	Insanely higher market share. +1,100%	0.04 %
Value Value For Money	103 %	Much better value. +39%	74.4 %
User Rating UBM User Rating	78 %	Much more popular. +42%	55 %
Price Price (score)	$173	Much cheaper. +56%	$393


Age Newest	79 Months	+4%	82 Months
TDP Thermal Design Power (TDP)	95 Watts	Much more energy efficient. +32%	140 Watts
Cores CPU Processing Cores	6 cores		10 cores	Much higher core count. +67%
Threads CPU Processing Threads	6 threads		20 threads	Hugely higher thread count. +233%
Lithography Manufacturing process	14 nm		14 nm
Base Clock Base Clock Speed	3.6 GHz		3.8 GHz	Slightly faster base frequency. +6%
Turbo Clock Turbo Clock Speed	4.3 GHz		4.3 GHz
64-Core OC Multi Core Speed	828 Pts		1853 Pts	Hugely faster OC 64-core speed. +124%
64-Core Avg. Multi Core Speed	681 Pts		1589 Pts	Hugely faster 64-core speed. +133%


Series CPU Architecture	Coffee Lake	Skylake-X
Socket Motherboard Socket	FCLGA1151	LGA2066
Graphics Integrated Graphics	UHD 630	None
Launch Date Launch Date	Q4'17	Q2'17
Cache Cache	9 MB	13.75 MB L3
Instruction Set Extensions Instruction Set Extensions	SSE4.1/4.2, AVX2	SSE4.1/4.2, AVX2, AVX-512
Recommended Price Recommended Customer Price	N/A	$989.00 - $999.00
Thermal Solution Specification Thermal Solution Specification	PCG 2015C (130W)	PCG 2017X
Max Memory Size Max Memory Size (dependent on memory type)	64 GB	128 GB
Memory Channels Max # of Memory Channels	2	4
Hyper-Threading Tech Intel® Hyper-Threading Technology ‡	No	Yes
Max # of PCI Express Lanes Max # of PCI Express Lanes	16	44
	More specs »	More specs »

The unlocked hex-core i5-8600K from Intel’s latest Coffee Lake generation of processors is the new flagship of the i5 series, succeeding the Kaby Lake quad-core i5-7600K. The 8th generation of processors brings the largest performance uplift since Sandy Bridge by adding more cores at each of the i3, i5 and i7 product lines. Like the other Coffee Lake processors, the i5-8600K is built upon optimized 14nm architecture, marginally improved upon from Kaby Lake and Skylake. The 8600K has a 95W TDP and a nominal stock clock of 3.6 GHz, which boosts to 4.1 GHz for all six cores, 4.2 GHz for dual/quad and 4.3 GHz for single core. Early benchmarks put the i5-8600K’s effective speed 15% ahead of the i5-7600K. A 50% increase in multi-core speed is explained by two additional cores and thanks to the quad-core clock bump from 4 GHz on the 7600K to 4.2 GHz on the 8600K there is also an additional 5% performance boost across all workloads. All Coffee Lake processors require a 300-series chipset, making a straight CPU upgrade unfeasible despite sharing the same socket as their Z270 predecessors. Even though most games still use less than 4 cores simultaneously, the i5-8600K is a great choice for gamers but for $80 less, the 8350K which is faster than last years 7600K and only marginally weaker for gaming than the 8600K is certainly well worth considering as well. ^{[Oct '17 CPUPro]}

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Intel’s core i9-7900X, from the Skylake-X series, is Intel’s latest 10-core, 20-thread flagship processor. It's the first to bear the i9 moniker and utilize the new X299 (Basin Falls) chipset/motherboard. The 7900X is the fastest CPU on the market today, however, imminent competition from AMD’s 16-core, 32-thread Ryzen Threadripper CPUs and the forthcoming release of more Intel Core X series mean that its reign will be a short one. The i9-7900X supersedes the 10-core Broadwell-E core i7-6950X that held the crown for little over a year. Both are extremely powerful and pricey high end desktop processors (HEDTs) which excel in multi-threaded tasks such as media encoding. However, despite the same power draw (TDP 140W), the newer i9-7900X betters the i7-6950X in terms of peak overclocked performance by 10% mostly thanks to increased clock speeds from 3.0GHz/4.0GHz to 3.3GHz/4.3GHz for base/turbo. It also betters the i7-6950X on price by around 28%. This all translates to the i9-7900X offering around 20% more value for money, even despite its eye-watering $999 price tag. The more accessible pricing (albeit not accessible for the majority) and hurried release of the i9-7900k to market is widely perceived as a reaction to AMD’s Ryzen Threadripper CPUs, rumoured for release towards the end of July 2017. So if you want to own the fastest consumer CPU in the world, it would be wise to wait for the dust to settle. ^{[Jul '17 CPUPro]}

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CPU	GPU	SSD
Intel Core i5-13600K $254	Nvidia RTX 4060 $290	Crucial MX500 250GB $39
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $163	Nvidia RTX 4070 $539	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) $31	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $37	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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