UserBenchmark: Intel Core i7-5820K vs i7-8700

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IntelBX80648I75820K

BUY • $130

IntelBX80684I78700

BUY • $200

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Real World Speed

Performance profile from 451,261 user samples

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101,694 User Benchmarks

Best Bench: 88% Base clock 3.3 GHz, turbo 4.6 GHz (avg)
Worst Bench: 68% Base clock 3.3 GHz, turbo 1.2 GHz (avg)

Poor: 68% Great: 88%

SPEED RANK: 281^st / 1442

Gaming 77%

Battleship

Desktop 78%

Battleship

Workstation 67%

Battle cruiser

349,567 User Benchmarks

Best Bench: 94% Base clock 3.2 GHz, turbo 4.3 GHz (avg)
Worst Bench: 75% Base clock 3.2 GHz, turbo 0.8 GHz (avg)

Poor: 75% Great: 94%

SPEED RANK: 161^st / 1442

Gaming 87%

Aircraft carrier

Desktop 89%

Aircraft carrier

Workstation 78%

Battleship


Effective Speed Effective CPU Speed		76.8 %			87 %	Faster effective speed. +13%


Memory Avg. Memory Latency	86.4 Pts	88.7 Pts	+3%
1-Core Avg. Single Core Speed	96.3 Pts	126 Pts	Much faster single-core speed. +31%
2-Core Avg. Dual Core Speed	192 Pts	245 Pts	Faster dual-core speed. +28%
4-Core Avg. Quad Core Speed	364 Pts	459 Pts	Faster quad-core speed. +26%
8-Core Avg. Octa Core Speed	594 Pts	748 Pts	Faster octa-core speed. +26%


Memory OC Memory Latency	94 Pts	95.5 Pts	+2%
1-Core OC Single Core Speed	120 Pts	132 Pts	Slightly faster OC single-core speed. +10%
2-Core OC Dual Core Speed	237 Pts	263 Pts	Faster OC dual-core speed. +11%
4-Core OC Quad Core Speed	462 Pts	518 Pts	Faster OC quad-core speed. +12%
8-Core OC Octa Core Speed	737 Pts	822 Pts	Faster OC octa-core speed. +12%

Market Share

Based on 67,713,401 CPUs tested

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Market Share Market Share (trailing 30 days)	0.16 %		1.11 %	Hugely higher market share. +594%
Value Value For Money	94.7 %		95.3 %	+1%
User Rating UBM User Rating	66 %		71 %	Slightly more popular. +8%
Price Price (score)	$130	Much cheaper. +35%	$200


Age Newest	116 Months		78 Months	Much more recent. +33%
TDP Thermal Design Power (TDP)	140 Watts		65 Watts	Much more energy efficient. +54%
Cores CPU Processing Cores	6 cores		6 cores
Threads CPU Processing Threads	12 threads		12 threads
Lithography Manufacturing process	22 nm		14 nm	Much newer manufacturing. +36%
Base Clock Base Clock Speed	3.3 GHz	+3%	3.2 GHz
Turbo Clock Turbo Clock Speed	3.6 GHz		4.6 GHz	Faster turbo frequency. +28%
64-Core OC Multi Core Speed	933 Pts		1043 Pts	Faster OC 64-core speed. +12%
64-Core Avg. Multi Core Speed	748 Pts		936 Pts	Faster 64-core speed. +25%


Series CPU Architecture	Haswell-E	Coffee Lake
Socket Motherboard Socket	LGA2011-V3	FCLGA1151
Graphics Integrated Graphics	None	UHD 630
Launch Date Launch Date	Q3'14	Q4'17
Cache Cache	15 MB SmartCache	12 MB
Instruction Set Extensions Instruction Set Extensions	SSE4.2, AVX 2.0, AES	SSE4.1/4.2, AVX2
Lithography Lithography	22 nm	14 nm
Recommended Price Recommended Customer Price	$389.00 - $396.00	N/A
Max Turbo Frequency Max Turbo Frequency	3.6 GHz	4.60 GHz
Bus Speed Bus Speed	0 GT/s	8 GT/s DMI3
Memory Types Memory Types	DDR4 1333/1600/2133	DDR4-2666
Memory Channels Max # of Memory Channels	4	2
Processor Graphics Processor Graphics ‡	None	Intel® UHD Graphics 630
Package Size Package Size	52.5mm x 45.0mm	37.5mm x 37.5mm
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 Intel Core i7-5820K is the cheapest of three (5820K,5930K,5960X) new Haswell-E prosumer/enthusiast processors. The 5820K sports six physical cores and twelve threads which allow for enormous processing throughput. Unfortunately Intel have somewhat handicapped the 5820K by setting its base clock at just 3.3 GHz, 0.7GHz lower than the class leading 4790K. Comparing the 4790K and 5820K shows that the cheaper i7-4790K is significantly faster at both single and dual threaded workloads. The additional two cores found in the 5820K are not relevant to general computing and as such the 5820K probably makes a better server rather than consumer proposition. The Haswell-E X99 architecture also requires DDR4 RAM which is currently far more expensive than DDR3. Overall the 5820K is a very expensive option and probably best avoided by the vast majority of consumers. ^{[Sep '14 CPUPro]}

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The high-end hex core, 12 thread i7-8700 is second in Intel’s line up of 8th generation Coffee Lake CPUs that witnesses an increase in the number of cores at each SKU, as well as further refinement on the 14nm architecture as seen in the 6th and 7th generations. The i7-8700 features a TDP of 65W, 12MB of L3 Cache and 16 PCIe lanes. Although the 8700 has a base clock of 3.2 GHz it has an all core boost of 4.3 GHz and a single core boost of 4.6 GHz. These are unusually high clocks for a non-K SKU, Intel have historically clocked their non-K SKUs around 10% lower than the flagship K variants but with Coffee Lake, the 8700 is almost a match for a stock 8700K. Priced at $320, the i7-8700 offers exceptional single, quad and multi-core processing power to the mainstream market but unfortunately a new 300 series chipset will also need to be factored into the purchase. AMD’s comparably priced Ryzen 7 1700X is an 8 core 16 thread processor which is around 20% faster at multi-threaded tasks, but has around 20% slower single and quad core performance so the choice between these two processors is use case dependant but generally favours Intel for most desktop users whose workloads are typically single or dual core bound. ^{[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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