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IntelBX80619I73960X
IntelBX80684I78086K
▲ 53588 ▼

6 Cores, 12 Threads @3.3GHz, Sandy Bridge-E.
Release date: Q3 2011.

VS
▲ 55794 ▼

6 Cores, 12 Threads @4.00 GHz, Coffee Lake.
Release date ≈ Q2 2018.

Effective Speed 
+17%
Real World Speed
Performance profile from 40,251 user samples
Benchmark your CPU here
2,165 User Benchmarks
Best Bench: 89% Base clock 3.3 GHz
Worst Bench: 66% Base clock 3.3 GHz, turbo 0.85 GHz (avg)
Poor: 66% Great: 89%
SPEED RANK: 270th / 1442
Gaming
Gaming 78%
Battleship
Desktop
Desktop 79%
Battleship
Workstation
Workstation 67%
Battle cruiser
38,086 User Benchmarks
Best Bench: 102% Base clock 4 GHz, turbo 5.15 GHz (avg)
Worst Bench: 81% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 81% Great: 102%
SPEED RANK: 135th / 1442
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 82%
Aircraft carrier
Effective Speed
Effective CPU Speed 		77.7 % 90.8 % Faster effective speed.
+17%
Average Score 
+29%
Memory
Avg. Memory Latency 		87.1 Pts 91.6 Pts Slightly lower memory latency.
+5%
1-Core
Avg. Single Core Speed 		96.7 Pts 132 Pts Much faster single-core speed.
+37%
2-Core
Avg. Dual Core Speed 		192 Pts 256 Pts Much faster dual-core speed.
+33%
4-Core
Avg. Quad Core Speed 		369 Pts 484 Pts Much faster quad-core speed.
+31%
8-Core
Avg. Octa Core Speed 		585 Pts 800 Pts Much faster octa-core speed.
+37%
Overclocked Score 
+24%
Memory
OC Memory Latency 		95.3 Pts 97 Pts +2%
1-Core
OC Single Core Speed 		118 Pts 153 Pts Faster OC single-core speed.
+30%
2-Core
OC Dual Core Speed 		233 Pts 304 Pts Much faster OC dual-core speed.
+30%
4-Core
OC Quad Core Speed 		457 Pts 580 Pts Faster OC quad-core speed.
+27%
8-Core
OC Octa Core Speed 		715 Pts 948 Pts Much faster OC octa-core speed.
+33%
Value & Sentiment 
+∞%
Market Share
Based on 67,809,107 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.07 % Insanely higher market share.
+∞%
Value
Value For Money 		78.7 % 82.3 % +5%
User Rating
UBM User Rating 		53 % 55 % +4%
Price
Price (score) 		$265 Much cheaper.
+34% 		$399
Nice To Haves 
+42%
Age
Newest 		152 Months 70+ Months Much more recent.
+54%
64-Core
OC Multi Core Speed 		888 Pts 1194 Pts Much faster OC 64-core speed.
+34%
64-Core
Avg. Multi Core Speed 		728 Pts 1008 Pts Much faster 64-core speed.
+38%
Specifications 
Launch Date
Launch Date 		Q4'11 Q2'18
Cache
Cache 		15 MB SmartCache 12 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.2, AVX, AES Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Lithography
Lithography 		32 nm 14 nm
Max Turbo Frequency
Max Turbo Frequency 		3.9 GHz 5.00 GHz
Bus Speed
Bus Speed 		5 GT/s DMI2 8 GT/s DMI3
Memory Types
Memory Types 		DDR3 1066/1333/1600 DDR4-2666
Memory Channels
Max # of Memory Channels 		4 2
Memory Bandwidth
Max Memory Bandwidth 		51.2 GB/s 41.6 GB/s
Package Size
Package Size 		52.5mm x 45.0mm 37.5mm x 37.5mm
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		No Yes
PCI Express Revision
PCI Express Revision 		2.0 3.0
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		40 16

More specs » More specs »
Conclusion 
Average Bench 77.7%
Average Bench 90.8%
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The fact that the near three year old Intel i7-3960X still tops the speed charts reflects just how little competition there is in the CPU market. Intel have dominated for so long that there is simply no economic incentive to push the speed boundaries at anywhere nearly the pace of improvement we saw in previous years. The i7-3960X has 6 cores and 12 threads which is two cores more than the vast majority of Intel's other top end processors. The extra two cores explain why the 3960X still performs so well compared to the majority of the 3960X's newer siblings. This processor will offer little more than a far cheaper i3 to regular desktop users but for server orientated workloads it is still one of the best processors available. [Mar '14 CPUPro]

MORE DETAILS

Intel are celebrating the 40th anniversary of their x86 architecture and 8086 processor with the launch of their high-end i7-8086K. Just 50,000 units of this hex core, twelve threaded Coffee Lake processor have been made available globally. Exactly like the i7-8700K, the 8086K features 12MB of smart (L3) cache, 2 channels of DDR4 RAM and has a TDP of 95W. Essentially, the 8086K is Intel’s current Coffee Lake flagship, the i7-8700K, with a single-core turbo frequency factory overclocked by 300 MHz. Thermals permitting, out of the box, the i7-8086K achieves a single core boost speed of 5.0 GHz – which is a new record for Intel. That said, you would be unlucky if you were unable to achieve a 5.0 GHz single core OC with an 8700K. For everything other than single core, the turbo clock speeds on the 8086K exactly match the 8700K which puts the 8086K firmly into gimmick territory. Directly comparing the 8086K and 8700K shows that for a $100 (24%) price premium you get around a 5% performance improvement which drops to around 2% when both chips are overclocked. If the price gap between the 8086K and the 8700K were to fall to less than 20 USD it may be worth considering the 8086K. [Jun '18 CPUPro]

MORE DETAILS

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We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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