UserBenchmark: Intel Core i7-6800K vs i7-8700K

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IntelBX80671I76800K

BUY • $78

IntelBX80684I78700K

BUY • $186

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Real World Speed

Performance profile from 796,483 user samples

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50,196 User Benchmarks

Best Bench: 90% Base clock 3.4 GHz, turbo 4.1 GHz (avg)
Worst Bench: 71% Base clock 3.4 GHz, turbo 1.2 GHz (avg)

Poor: 71% Great: 90%

SPEED RANK: 221^st / 1442

Gaming 81%

Aircraft carrier

Desktop 82%

Aircraft carrier

Workstation 71%

Battleship

746,287 User Benchmarks

Best Bench: 100% Base clock 3.7 GHz, turbo 5.05 GHz (avg)
Worst Bench: 76% Base clock 3.7 GHz, turbo 0.8 GHz (avg)

Poor: 76% Great: 100%

SPEED RANK: 148^th / 1442

Gaming 88%

Aircraft carrier

Desktop 90%

Nuclear submarine

Workstation 80%

Battleship


Effective Speed Effective CPU Speed		80.9 %			88.4 %	Slightly faster effective speed. +9%


Memory Avg. Memory Latency	86 Pts	90.1 Pts	+5%
1-Core Avg. Single Core Speed	107 Pts	128 Pts	Faster single-core speed. +20%
2-Core Avg. Dual Core Speed	214 Pts	249 Pts	Faster dual-core speed. +16%
4-Core Avg. Quad Core Speed	408 Pts	466 Pts	Faster quad-core speed. +14%
8-Core Avg. Octa Core Speed	660 Pts	770 Pts	Faster octa-core speed. +17%


Memory OC Memory Latency	94.9 Pts	96.5 Pts	+2%
1-Core OC Single Core Speed	124 Pts	148 Pts	Faster OC single-core speed. +19%
2-Core OC Dual Core Speed	248 Pts	292 Pts	Faster OC dual-core speed. +18%
4-Core OC Quad Core Speed	483 Pts	558 Pts	Faster OC quad-core speed. +16%
8-Core OC Octa Core Speed	770 Pts	892 Pts	Faster OC octa-core speed. +16%

Market Share

Based on 67,717,182 CPUs tested

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Market Share Market Share (trailing 30 days)	0.08 %		1.32 %	Insanely higher market share. +1,550%
Value Value For Money	115 %	Better value. +16%	98.7 %
User Rating UBM User Rating	65 %		81 %	More popular. +25%
Price Price (score)	$78	Much cheaper. +58%	$186


Age Newest	94 Months	78 Months	More recent. +17%
TDP Thermal Design Power (TDP)	140 Watts	95 Watts	Much more energy efficient. +32%
Cores CPU Processing Cores	6 cores	6 cores
Threads CPU Processing Threads	12 threads	12 threads
Lithography Manufacturing process	14 nm	14 nm
Base Clock Base Clock Speed	3.4 GHz	3.7 GHz	Slightly faster base frequency. +9%
Turbo Clock Turbo Clock Speed	3.8 GHz	4.7 GHz	Faster turbo frequency. +24%
64-Core OC Multi Core Speed	956 Pts	1147 Pts	Faster OC 64-core speed. +20%
64-Core Avg. Multi Core Speed	827 Pts	971 Pts	Faster 64-core speed. +17%


Series CPU Architecture	Broadwell-E	Coffee Lake
Socket Motherboard Socket	LGA2011-V3	FCLGA1151
Graphics Integrated Graphics	None	UHD 630
Launch Date Launch Date	Q2'16	Q4'17
Cache Cache	15 MB	12 MB
Max Turbo Frequency Max Turbo Frequency	3.8 GHz	4.70 GHz
Max Memory Size Max Memory Size (dependent on memory type)	128 GB	64 GB
Memory Types Memory Types	DDR4 2400/2133	DDR4-2666
Memory Channels Max # of Memory Channels	4	2
Processor Graphics Processor Graphics ‡	None	Intel® UHD Graphics 630
vPro Tech Intel® vPro™ Technology ‡	No	Yes
Trusted Execution Tech Intel® Trusted Execution Technology ‡	No	Yes
Max # of PCI Express Lanes Max # of PCI Express Lanes	28	16
	More specs »	More specs »

The Core i7-6800K is the weakest of four new 14 nm Broadwell-E prosumer CPUs. This model has six cores with base and turbo frequencies of 3.4 and 3.8 GHz, a TDP of 140 watts and 28 PCIe 3.0 lanes. The 6800K closely matches, and supersedes, the very popular Haswell-E 5820K. Because of its MSRP of around $500, this CPU only makes sense for niche use cases which include graphics design, video production or multi GPU gaming. Comparing the 6800K and 6700K shows that for typical desktop use, at stock clocks, the 6800K actually lags the 6700K by around 10%. This is because desktop computing largely depends on single core performance and the Skylake i7-6700K is both clocked higher (Base clock 4.0 GHz vs 3.4 GHz) and has higher IPC due to its one generation lead over the 6800K. If the 6800K proves to be a capable overclocker then it may challenge the 6700K on a range of core-heavy use cases, time will tell. ^{[Jun '16 CPUPro]}

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The i7-8700K is Intel’s latest, top of the range, 8th generation Coffee Lake processor. Like Kaby Lake and Sky Lake before that, Coffee Lake is based on Intel’s 14nm architecture which has been slightly optimized on each iteration. Following AMD’s modus operandi, Intel has upped the cores and threads across the range of their CPUs. In previous generations, a 6-core processor would have been a high-end desk-top (HEDT) processor, however the i7-8700K is the first Intel CPU with 6 cores and 12 threads to be classified (and priced) as a mainstream consumer processor. Specifically, the i7-8700K features a base clock speed of 3.7 GHz which boosts to 4.7 GHz (4.5 GHz for the previous generation i7-7700k), 12MB of smart (L3) cache and 2 channels of DDR4 RAM. The majority of the performance improvements over the 7th generation stem from the higher core count which results in a 50% increase in multi-core speed between the i7-7700k and i7-8700k. A new motherboard will need to be factored into the budget when upgrading to the 8700K as it requires a new Intel Z370 chipset which has supposedly been designed to better deliver power to CPUs with a greater number of cores. Also available in this latest release of CPUs is the 6 core 6 thread i5-8600k which is a more rational option (around $100 cheaper) for the vast majority of users that don’t require hyper-threading. Sandy bridge owners can finally justify an upgrade but with the next iteration of AMD's Zen architecture just around the corner the CPU market will be a lot faster moving now that Intel, once again, has to compete. ^{[Sep '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 $182	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) $30	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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