UserBenchmark: Intel Core i7-3930K vs i7-8700K

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IntelBX80684I78700K

BUY • $198

IntelBX80619I73930K

BUY • $280

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Real World Speed

Performance profile from 779,459 user samples

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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

33,172 User Benchmarks

Best Bench: 85% Base clock 3.2 GHz
Worst Bench: 63% Base clock 3.8 GHz, turbo 4.15 GHz (avg)

Poor: 63% Great: 85%

SPEED RANK: 314^th / 1442

Gaming 74%

Battleship

Desktop 76%

Battleship

Workstation 64%

Destroyer


Effective Speed Effective CPU Speed		88.4 %	Faster effective speed. +19%		74.4 %


Memory Avg. Memory Latency	90.1 Pts	Slightly lower memory latency. +6%	85.2 Pts
1-Core Avg. Single Core Speed	128 Pts	Much faster single-core speed. +40%	91.6 Pts
2-Core Avg. Dual Core Speed	249 Pts	Much faster dual-core speed. +37%	182 Pts
4-Core Avg. Quad Core Speed	466 Pts	Much faster quad-core speed. +35%	344 Pts
8-Core Avg. Octa Core Speed	770 Pts	Much faster octa-core speed. +41%	548 Pts


Memory OC Memory Latency	96.5 Pts	+2%	94.7 Pts
1-Core OC Single Core Speed	148 Pts	Much faster OC single-core speed. +32%	112 Pts
2-Core OC Dual Core Speed	292 Pts	Much faster OC dual-core speed. +31%	223 Pts
4-Core OC Quad Core Speed	558 Pts	Faster OC quad-core speed. +29%	432 Pts
8-Core OC Octa Core Speed	892 Pts	Much faster OC octa-core speed. +30%	684 Pts

Market Share

Based on 67,695,524 CPUs tested

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Market Share Market Share (trailing 30 days)	1.48 %	Insanely higher market share. +3,600%	0.04 %
Value Value For Money	97 %	Much better value. +31%	74.2 %
User Rating UBM User Rating	81 %	More popular. +29%	63 %
Price Price (score)	$198	Cheaper. +29%	$280


Age Newest	78 Months	Much more recent. +48%	149 Months
TDP Thermal Design Power (TDP)	95 Watts	More energy efficient. +27%	130 Watts
Cores CPU Processing Cores	6 cores		6 cores
Threads CPU Processing Threads	12 threads		12 threads
Lithography Manufacturing process	14 nm	Much newer manufacturing. +56%	32 nm
Base Clock Base Clock Speed	3.7 GHz	Faster base frequency. +16%	3.2 GHz
Turbo Clock Turbo Clock Speed	4.7 GHz	Faster turbo frequency. +24%	3.8 GHz
64-Core OC Multi Core Speed	1147 Pts	Much faster OC 64-core speed. +36%	841 Pts
64-Core Avg. Multi Core Speed	971 Pts	Much faster 64-core speed. +43%	681 Pts


Series CPU Architecture	Coffee Lake	Sandy Bridge-E
Socket Motherboard Socket	FCLGA1151	FCLGA2011
Graphics Integrated Graphics	UHD 630	None
Launch Date Launch Date	Q4'17	Q4'11
Cache Cache	12 MB	12 MB SmartCache
Instruction Set Extensions Instruction Set Extensions	SSE4.1/4.2, AVX2	SSE4.2, AVX, AES
Lithography Lithography	14 nm	32 nm
Max Turbo Frequency Max Turbo Frequency	4.70 GHz	3.8 GHz
Bus Speed Bus Speed	8 GT/s DMI3	5 GT/s DMI2
Memory Types Memory Types	DDR4-2666	DDR3 1066/1333/1600
Memory Channels Max # of Memory Channels	2	4
Package Size Package Size	37.5mm x 37.5mm	52.5mm x 45.0mm
vPro Tech Intel® vPro™ Technology ‡	Yes	No
Trusted Execution Tech Intel® Trusted Execution Technology ‡	Yes	No
PCI Express Revision PCI Express Revision	3.0	2.0
Max # of PCI Express Lanes Max # of PCI Express Lanes	16	40
	More specs »	More specs »

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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The 3930K has an outstanding multi-core performance profile, almost as good as you can buy at any budget, which considering its relatively reasonable price tag really make it stand out from the crowd. The reason for the extraordinary multi-core benchmark scores is down to the 3930K's six cores. Having six cores effectively results in a 50% lead over quad core cpus and a 200% percent lead over dual core cpu's. Typical desktop users rarely use more than two cores simultaneously thus rendering the additional four cores largely redundant for consumer use. In terms of regular use this CPU will offer virtually no better real world performance than the leaders in my Desktop CPU Group Test. For server orientated workloads the 3930K offers both outstanding performance and superb value for money. ^{[Jun '13 CPUPro]}

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CPU	GPU	SSD
Intel Core i5-13600K $273	Nvidia RTX 4060 $300	Crucial MX500 250GB $40
Intel Core i5-12400F $132	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $186	Nvidia RTX 4070 $409	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $34	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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