IntelBX80623I72700K
IntelBX80677I77700K

4 Cores, 8 Threads @3.5GHz, Sandy Bridge.
Release date: Q3 2011.

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

Real World Speed
Performance profile from 733,004 user samples
20,692 User Benchmarks
Best Bench: 85% Base clock 4.8 GHz, turbo 6.65 GHz (avg)
Worst Bench: 60% Base clock 3.5 GHz, turbo 0.35 GHz (avg)
Poor: 60% Great: 85%
SPEED RANK: 339th / 1442
Gaming
Gaming 73%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 58%
Gunboat
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: 189th / 1442
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 70%
Battleship
Effective Speed
Effective CPU Speed
73 % 84.2 % Faster effective speed.
+15%
Memory
Avg. Memory Latency
87.7 Pts 89.6 Pts +2%
1-Core
Avg. Single Core Speed
96 Pts 127 Pts Much faster single-core speed.
+32%
2-Core
Avg. Dual Core Speed
183 Pts 242 Pts Much faster dual-core speed.
+32%
4-Core
Avg. Quad Core Speed
318 Pts 426 Pts Much faster quad-core speed.
+34%
8-Core
Avg. Octa Core Speed
460 Pts 647 Pts Much faster octa-core speed.
+41%
Memory
OC Memory Latency
96.4 Pts 96.5 Pts +0%
1-Core
OC Single Core Speed
121 Pts 142 Pts Faster OC single-core speed.
+17%
2-Core
OC Dual Core Speed
236 Pts 275 Pts Faster OC dual-core speed.
+17%
4-Core
OC Quad Core Speed
412 Pts 482 Pts Faster OC quad-core speed.
+17%
8-Core
OC Octa Core Speed
600 Pts 737 Pts Faster OC octa-core speed.
+23%
Market Share
Based on 67,685,817 CPUs tested
Market Share
Market Share (trailing 30 days)
0.04 % 1.19 % Insanely higher market share.
+2,875%
Value
Value For Money
99.8 % Better value.
+15%
86.7 %
User Rating
UBM User Rating
55 % 83 % Much more popular.
+51%
Price
Price (score)
$89 Much cheaper.
+64%
$250
Age
Newest
151 Months 87 Months Much more recent.
+42%
TDP
Thermal Design Power (TDP)
95 Watts 91 Watts +4%
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
32 nm 14 nm Much newer manufacturing.
+56%
Base Clock
Base Clock Speed
3.5 GHz 4.2 GHz Faster base frequency.
+20%
Turbo Clock
Turbo Clock Speed
3.9 GHz 4.5 GHz Faster turbo frequency.
+15%
64-Core
OC Multi Core Speed
606 Pts 747 Pts Faster OC 64-core speed.
+23%
64-Core
Avg. Multi Core Speed
466 Pts 662 Pts Much faster 64-core speed.
+42%
Series
CPU Architecture
Sandy Bridge Kaby Lake
Socket
Motherboard Socket
LGA1155 FCLGA1151
Graphics
Integrated Graphics
HD 3000 HD 630
Launch Date
Launch Date
Q4'11 Q1'17
Cache
Cache
8 MB SmartCache 8 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 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 DMI 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3 1066/1333 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 3000 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
850 MHz 350.00 MHz
# of Displays Supported
# of Displays Supported ‡
2 3
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.35 GHz 1.15 GHz
PCI Express Revision
PCI Express Revision
2.0 3.0

More specs » More specs »
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The Core i7-2700K is a 3.5GHz Sandy Bridge processor. Sporting four cores and eight threads the 2700K has a strong performance profile, even by today's standards. Comparing the 2700K and the 4770K shows that although the 4770K is two generations and nearly two years newer there is still only around 7% separating the processors in terms of overall calculation throughput. The 4770K does have a 12% lower TDP and it's also compatible with Intel's latest platform so as a new purchase it is the clear winner, but owners of the 2700K are only missing out on marginally better performance. [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

Processor Rankings (Price vs Performance) April 2024 CPU Rankings

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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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.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute

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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How it works

  • - Download and run UserBenchmark
  • - 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
  • - SkillBench (space shooter) tests user input accuracy
  • - 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
  • - Compare your in-game FPS to other users with your hardware

 Frequently Asked Questions

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