IntelBX80677I77700
IntelBX80637I73770K

4 Cores, 8 Threads @3.6GHz, Kaby Lake.
Release date: Q1 2017.

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

Real World Speed
Performance profile from 362,612 user samples
212,777 User Benchmarks
Best Bench: 88% Base clock 3.6 GHz, turbo 4 GHz (avg)
Worst Bench: 67% Base clock 3.6 GHz, turbo 0.8 GHz (avg)
Poor: 67% Great: 88%
SPEED RANK: 161st / 1316
Gaming
Gaming 80%
Battleship
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 66%
Battle cruiser
149,835 User Benchmarks
Best Bench: 87% Base clock 3.5 GHz, turbo 4.7 GHz (avg)
Worst Bench: 65% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 65% Great: 87%
SPEED RANK: 190th / 1316
Gaming
Gaming 77%
Battleship
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 62%
Destroyer
Effective Speed
Effective CPU Speed
79.5 % +3% 77 %
Memory
Avg. Memory Latency
85.7 Pts 88.7 Pts +4%
1-Core
Avg. Single Core Mixed Speed
116 Pts Faster single-core speed.
+10%
105 Pts
2-Core
Avg. Dual Core Mixed Speed
222 Pts Faster dual-core speed.
+10%
201 Pts
4-Core
Avg. Quad Core Mixed Speed
397 Pts Faster quad-core speed.
+12%
355 Pts
8-Core
Avg. Octa Core Mixed Speed
588 Pts Faster octa-core speed.
+12%
524 Pts
Memory
OC Memory Latency
93 Pts 96.5 Pts +4%
1-Core
OC Single Core Mixed Speed
128 Pts +3% 124 Pts
2-Core
OC Dual Core Mixed Speed
250 Pts +4% 241 Pts
4-Core
OC Quad Core Mixed Speed
472 Pts Slightly faster OC quad-core speed.
+8%
436 Pts
8-Core
OC Octa Core Mixed Speed
662 Pts +4% 635 Pts
Market Share
Based on 45,116,201 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.49 % Much higher market share.
+69%
0.29 %
Value
Value For Money
81 % Slightly better value.
+5%
76.9 %
User Rating
UBM User Rating
60 % 61 % +2%
Price
Price (score)
$260 Slightly cheaper.
+7%
$280
Age
Newest
55 Months Much more recent.
+51%
112 Months
TDP
Thermal Design Power (TDP)
65 Watts More energy efficient.
+16%
77 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
3.6 GHz +3% 3.5 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz Slightly faster turbo frequency.
+8%
3.9 GHz
64-Core
OC Multi Core Mixed Speed
667 Pts +5% 637 Pts
64-Core
Avg. Multi Core Mixed Speed
595 Pts Faster 64-core speed.
+12%
530 Pts
Series
CPU Architecture
Kaby Lake Ivy Bridge
Socket
Motherboard Socket
FCLGA1151 FCLGA1155
Graphics
Integrated Graphics
HD 630 HD 4000
Launch Date
Launch Date
Q1'17 Q2'12
Cache
Cache
8 MB 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$303.00 - $312.00 $332.00 - $342.00
Max Turbo Frequency
Max Turbo Frequency
4.20 GHz 3.9 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) 2011D
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR3 1333/1600
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 630 Intel® HD Graphics 4000
Graphics Base Frequency
Graphics Base Frequency
350.00 MHz 650 MHz
TSX-NI
Intel® TSX-NI
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
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

Processor Rankings (Price vs Performance) August 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

 Best User Rated

The Best.
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