IntelBX80637I73770K
IntelBX80662I36100

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

2 Cores, 4 Threads @3.7GHz, Skylake.
Release date: Q4 2015.

Real World Speed
Performance profile from 268,744 user samples
164,935 User Benchmarks
Best Bench: 87% Base clock 3.5 GHz, turbo 4.6 GHz (avg)
Worst Bench: 66% Base clock 3.9 GHz, turbo 1.75 GHz (avg)
Poor: 66% Great: 87%
SPEED RANK: 193rd / 1316
Gaming
Gaming 77%
Battleship
Desktop
Desktop 80%
Aircraft carrier
Workstation
Workstation 62%
Destroyer
103,809 User Benchmarks
Best Bench: 72% Base clock 3.7 GHz
Worst Bench: 52% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 52% Great: 72%
SPEED RANK: 445th / 1316
Gaming
Gaming 63%
Destroyer
Desktop
Desktop 72%
Battleship
Workstation
Workstation 47%
Yacht
Effective Speed
Effective CPU Speed
76.7 % Faster effective speed.
+21%
63.4 %
Memory
Avg. Memory Latency
88.3 Pts Lower memory latency.
+11%
79.9 Pts
1-Core
Avg. Single Core Mixed Speed
104 Pts 104 Pts
2-Core
Avg. Dual Core Mixed Speed
201 Pts Faster dual-core speed.
+10%
182 Pts
4-Core
Avg. Quad Core Mixed Speed
354 Pts Much faster quad-core speed.
+30%
272 Pts
8-Core
Avg. Octa Core Mixed Speed
520 Pts Hugely faster octa-core speed.
+88%
277 Pts
Memory
OC Memory Latency
96.1 Pts +3% 93.2 Pts
1-Core
OC Single Core Mixed Speed
120 Pts Slightly faster OC single-core speed.
+5%
114 Pts
2-Core
OC Dual Core Mixed Speed
236 Pts Faster OC dual-core speed.
+12%
211 Pts
4-Core
OC Quad Core Mixed Speed
430 Pts Much faster OC quad-core speed.
+41%
306 Pts
8-Core
OC Octa Core Mixed Speed
613 Pts Hugely faster OC octa-core speed.
+99%
308 Pts
Market Share
Based on 46,527,953 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.25 % Higher market share.
+25%
0.2 %
Value
Value For Money
77.6 % 79 % +2%
User Rating
UBM User Rating
62 % 62 %
Price
Price (score)
$267 $125 Much cheaper.
+53%
Age
Newest
113 Months 71 Months Much more recent.
+37%
TDP
Thermal Design Power (TDP)
77 Watts 47 Watts Much more energy efficient.
+39%
Cores
CPU Processing Cores
4 cores Hugely higher core count.
+100%
2 cores
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
3.5 GHz 3.7 GHz Slightly faster base frequency.
+6%
Turbo Clock
Turbo Clock Speed
3.9 GHz Slightly faster turbo frequency.
+5%
3.7 GHz
64-Core
OC Multi Core Mixed Speed
618 Pts Hugely faster OC 64-core speed.
+99%
310 Pts
64-Core
Avg. Multi Core Mixed Speed
525 Pts Hugely faster 64-core speed.
+88%
279 Pts
Series
CPU Architecture
Ivy Bridge Skylake
Socket
Motherboard Socket
FCLGA1155 FCLGA1151
Graphics
Integrated Graphics
HD 4000 HD 530
Launch Date
Launch Date
Q2'12 Q3'15
Cache
Cache
8 MB SmartCache 3 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX SSE4.1/4.2, AVX 2.0
Embedded Options Available
Embedded Options Available
No Yes
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$332.00 - $342.00 $117.00
Bus Speed
Bus Speed
5 GT/s DMI 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification
2011D PCG 2015C (65W)
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3 1333/1600 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Bandwidth
Max Memory Bandwidth
25.6 GB/s 34.1 GB/s
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4000 Intel® HD Graphics 530
Graphics Base Frequency
Graphics Base Frequency
650 MHz 350 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.05 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 No
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
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

Processor Rankings (Price vs Performance) September 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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