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IntelBX80619I73960X
IntelBX80677I77700K
▲ 53588 ▼

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

VS
▲ 8351,397 ▼

4 Cores, 8 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

Effective Speed 
+8%
Real World Speed
Performance profile from 714,477 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
712,312 User Benchmarks
Best Bench: 92% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 71% Base clock 4.2 GHz, turbo 0.2 GHz (avg)
Poor: 71% Great: 92%
SPEED RANK: 188th / 1442
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 70%
Battleship
Effective Speed
Effective CPU Speed 		77.7 % 84.2 % Slightly faster effective speed.
+8%
Average Score 
+17%
Memory
Avg. Memory Latency 		87.1 Pts 89.6 Pts +3%
1-Core
Avg. Single Core Speed 		96.7 Pts 127 Pts Much faster single-core speed.
+31%
2-Core
Avg. Dual Core Speed 		192 Pts 242 Pts Faster dual-core speed.
+26%
4-Core
Avg. Quad Core Speed 		369 Pts 426 Pts Faster quad-core speed.
+15%
8-Core
Avg. Octa Core Speed 		585 Pts 647 Pts Faster octa-core speed.
+11%
Overclocked Score 
+10%
Memory
OC Memory Latency 		95.3 Pts 96.5 Pts +1%
1-Core
OC Single Core Speed 		118 Pts 142 Pts Faster OC single-core speed.
+20%
2-Core
OC Dual Core Speed 		233 Pts 275 Pts Faster OC dual-core speed.
+18%
4-Core
OC Quad Core Speed 		457 Pts 482 Pts Slightly faster OC quad-core speed.
+5%
8-Core
OC Octa Core Speed 		715 Pts 737 Pts +3%
Value & Sentiment 
+∞%
Market Share
Based on 67,721,639 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.98 % Insanely higher market share.
+∞%
Value
Value For Money 		78.7 % 87.6 % Better value.
+11%
User Rating
UBM User Rating 		53 % 83 % Much more popular.
+57%
Price
Price (score) 		$265 $241 Slightly cheaper.
+9%
Nice To Haves 
+5%
Age
Newest 		151 Months 87 Months Much more recent.
+42%
TDP
Thermal Design Power (TDP) 		130 Watts 91 Watts Much more energy efficient.
+30%
Cores
CPU Processing Cores 		6 cores Much higher core count.
+50% 		4 cores
Threads
CPU Processing Threads 		12 threads Much higher thread count.
+50% 		8 threads
Lithography
Manufacturing process 		32 nm 14 nm Much newer manufacturing.
+56%
Base Clock
Base Clock Speed 		3.3 GHz 4.2 GHz Faster base frequency.
+27%
Turbo Clock
Turbo Clock Speed 		3.9 GHz 4.5 GHz Faster turbo frequency.
+15%
64-Core
OC Multi Core Speed 		888 Pts Faster OC 64-core speed.
+19% 		747 Pts
64-Core
Avg. Multi Core Speed 		728 Pts Slightly faster 64-core speed.
+10% 		662 Pts
Specifications 
Series
CPU Architecture 		Sandy Bridge-E Kaby Lake
Socket
Motherboard Socket 		FCLGA2011 FCLGA1151
Graphics
Integrated Graphics 		None HD 630
Launch Date
Launch Date 		Q4'11 Q1'17
Cache
Cache 		15 MB SmartCache 8 MB
Instruction Set Extensions
Instruction Set Extensions 		SSE4.2, AVX, AES SSE4.1/4.2, AVX 2.0
Lithography
Lithography 		32 nm 14 nm
Recommended Price
Recommended Customer Price 		N/A $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency 		3.9 GHz 4.50 GHz
Bus Speed
Bus Speed 		5 GT/s DMI2 8 GT/s DMI3
Memory Types
Memory Types 		DDR3 1066/1333/1600 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Memory Channels
Max # of Memory Channels 		4 2
Package Size
Package Size 		52.5mm x 45.0mm 37.5mm x 37.5mm
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 84.2%
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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

The Core i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '17 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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  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

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  • - CPU tests include: integer, floating and string
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  • - Reports are generated and presented on userbenchmark.com
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 Frequently Asked Questions

Processors FAQ
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