IntelBX80619I73930K
IntelBX80677I77700K

6 Cores, 12 Threads @3.2GHz, Sandy Bridge-E.
Release date: Q4 2011.

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

Real World Speed
Performance profile from 309,599 user samples
17,950 User Benchmarks
Best Bench: 93% Base clock 3.2 GHz, turbo 3.8 GHz (avg)
Worst Bench: 63% Base clock 3.2 GHz, turbo 1.65 GHz (avg)
Poor: 63% Great: 93%
SPEED RANK: 101st / 1158
Gaming
Gaming 76%
Battleship
Desktop
Desktop 74%
Battleship
Workstation
Workstation 65%
Battle cruiser
291,649 User Benchmarks
Best Bench: 111% Base clock 4.2 GHz, turbo 5.15 GHz (avg)
Worst Bench: 83% Base clock 4.2 GHz, turbo 1.15 GHz (avg)
Poor: 83% Great: 111%
SPEED RANK: 34th / 1158
Gaming
Gaming 97%
Nuclear submarine
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 71%
Battleship
Effective Speed
Effective CPU Speed
76.3 % 96.5 % Faster effective speed.
+26%
SC Mixed
Avg. Single Core Mixed Speed
97.2 Pts 136 Pts Much faster single-core speed.
+40%
QC Mixed
Avg. Quad Core Mixed Speed
374 Pts 472 Pts Faster quad-core speed.
+26%
MC Mixed
Avg. Multi Core Mixed Speed
731 Pts +3% 711 Pts
SC Mixed
OC Single Core Mixed Speed
116 Pts 153 Pts Much faster OC single-core speed.
+32%
QC Mixed
OC Quad Core Mixed Speed
464 Pts 562 Pts Faster OC quad-core speed.
+21%
MC Mixed
OC Multi Core Mixed Speed
887 Pts Slightly faster OC multi-core speed.
+11%
800 Pts
Market Share
Based on 17,144,058 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.14 % 1.5 % Hugely higher market share.
+971%
Value
Value For Money
62.6 % 89.3 % Much better value.
+43%
User Rating
UBM User Rating
63 % 136 % Hugely more popular.
+116%
Price
Price (score)
$495 $359 Cheaper.
+27%
Age
Newest
90 Months 28 Months Much more recent.
+69%
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
3.2 GHz 4.2 GHz Much faster base frequency.
+31%
Turbo Clock
Turbo Clock Speed
3.8 GHz 4.5 GHz Faster turbo frequency.
+18%
SC Int
Single Core Integer Speed
115 Pts 149 Pts Faster single-core int speed.
+30%
SC Float
Single Core Floating Point Speed
116 Pts 158 Pts Much faster single-core fp speed.
+36%
QC Int
Quad Core Integer Speed
461 Pts 545 Pts Faster quad-core int speed.
+18%
QC Float
Quad Core Floating Point Speed
463 Pts 585 Pts Faster quad-core fp speed.
+26%
MC Int
Multi Core Integer Speed
854 Pts Faster multi-core int speed.
+17%
729 Pts
MC Float
Multi Core Floating Point Speed
882 Pts +2% 863 Pts
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
12 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
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 »
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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]

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

Processor Rankings (Price vs Performance) May 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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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Group Test Results

  • 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 freeware 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 upgrades.

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How it works

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  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
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