IntelBX80637I73770K
IntelBX80677I77700K

4 Cores, 8 Threads @3.5GHz, Ivy Bridge.
Release date: Q2 2012.

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

Real World Speed
Performance profile from 749,784 user samples
161,774 User Benchmarks
Best Bench: 87% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 65% Base clock 3.5 GHz, turbo 3.7 GHz (avg)
Poor: 65% Great: 87%
SPEED RANK: 202nd / 1323
Gaming
Gaming 77%
Battleship
Desktop
Desktop 80%
Aircraft carrier
Workstation
Workstation 62%
Destroyer
588,010 User Benchmarks
Best Bench: 95% Base clock 4.2 GHz
Worst Bench: 75% Base clock 4.2 GHz, turbo 2.15 GHz (avg)
Poor: 75% Great: 95%
SPEED RANK: 78th / 1323
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 73%
Battleship
Effective Speed
Effective CPU Speed
76.6 % 86.7 % Faster effective speed.
+13%
Memory
Avg. Memory Latency
88.3 Pts 90.7 Pts +3%
1-Core
Avg. Single Core Mixed Speed
104 Pts 131 Pts Faster single-core speed.
+26%
2-Core
Avg. Dual Core Mixed Speed
200 Pts 251 Pts Faster dual-core speed.
+26%
4-Core
Avg. Quad Core Mixed Speed
353 Pts 447 Pts Faster quad-core speed.
+27%
8-Core
Avg. Octa Core Mixed Speed
533 Pts 690 Pts Faster octa-core speed.
+29%
Memory
OC Memory Latency
96.4 Pts 96.7 Pts +0%
1-Core
OC Single Core Mixed Speed
122 Pts 146 Pts Faster OC single-core speed.
+20%
2-Core
OC Dual Core Mixed Speed
239 Pts 285 Pts Faster OC dual-core speed.
+19%
4-Core
OC Quad Core Mixed Speed
432 Pts 523 Pts Faster OC quad-core speed.
+21%
8-Core
OC Octa Core Mixed Speed
644 Pts 790 Pts Faster OC octa-core speed.
+23%
Market Share
Based on 48,477,604 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.28 % 1.01 % Hugely higher market share.
+261%
Value
Value For Money
77.5 % 79.6 % +3%
User Rating
UBM User Rating
61 % 82 % Much more popular.
+34%
Price
Price (score)
$267 Cheaper.
+30%
$379
Age
Newest
116 Months 59 Months Much more recent.
+49%
TDP
Thermal Design Power (TDP)
77 Watts More energy efficient.
+15%
91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
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 Mixed Speed
643 Pts 789 Pts Faster OC 64-core speed.
+23%
64-Core
Avg. Multi Core Mixed Speed
539 Pts 695 Pts Faster 64-core speed.
+29%
Series
CPU Architecture
Ivy Bridge Kaby Lake
Socket
Motherboard Socket
FCLGA1155 FCLGA1151
Graphics
Integrated Graphics
HD 4000 HD 630
Launch Date
Launch Date
Q2'12 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
22 nm 14 nm
Recommended Price
Recommended Customer Price
$332.00 - $342.00 $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
Thermal Solution Specification
Thermal Solution Specification
2011D PCG 2015D (130W)
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3 1333/1600 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4000 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
650 MHz 350.00 MHz
TSX-NI
Intel® TSX-NI
No Yes
PCI Express Configurations
PCI Express Configurations ‡
up to 1x16, 2x8, 1x8 & 2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
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The third gen Ivy Bridge Core i7-3770K can't really be described as a consumer orientated processor. With 8 threads and four cores its capabilities are better aligned to server use. For price insensitive consumers that want the best of the best, this is currently one of the fastest processors available. The PassMark Single Thread score of 2080 points puts the 3770K right at the top of the pack in terms of raw processing power and real world performance. The GeekBench and PassMark scores of 17210 and 9653 are within 20% or so of the best we have ever seen. Despite the near record breaking processing throughputs the 3770K is only rated at 77 TDP, which is very low by historical standards. For typical consumer use there are better value propositions out there. [May '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) December 2021 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 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.

UserBenchmark of the month

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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The Best.
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HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $76SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $76SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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