COMPARE
Today's hottest
Amazon Ebay
deals
CPU
RANKINGS
TEST
YOUR CPU
ADD TO PC
BUILD
IntelBX80623I52500K
$246
IntelBX80637I53570K
▲ 769,602 ▼
 $246 

4 Cores, 4 Threads @3.3GHz, Sandy Bridge.
Release date: Q1 2011.

VS
▲ 747,447 ▼

4 Cores, 4 Threads @3.4GHz, Ivy Bridge.
Release date: Q2 2012.

Effective Speed 
+3%
Real World Speed
Performance profile from 328,523 user samples
Benchmark your CPU here
143,007 User Benchmarks
Best Bench: 79% Base clock 3.3 GHz, turbo 4.6 GHz (avg)
Worst Bench: 44% Base clock 3.3 GHz, turbo 0.5 GHz (avg)
Poor: 44% Great: 79%
SPEED RANK: 505th / 1468
Gaming
Gaming 66%
Battle cruiser
Desktop
Desktop 72%
Battleship
Workstation
Workstation 49%
Yacht
185,516 User Benchmarks
Best Bench: 79% Base clock 4.4 GHz, turbo 5.7 GHz (avg)
Worst Bench: 54% Base clock 3.4 GHz, turbo 0.5 GHz (avg)
Poor: 54% Great: 79%
SPEED RANK: 472nd / 1468
Gaming
Gaming 68%
Battle cruiser
Desktop
Desktop 74%
Battleship
Workstation
Workstation 50%
Yacht
Effective Speed
Effective CPU Speed 		65.9 % 67.6 % +3%
Average Score 
+5%
Memory
Avg. Memory Latency 		83.1 Pts 83.1 Pts
1-Core
Avg. Single Core Speed 		88.4 Pts 94.1 Pts Slightly faster single-core speed.
+6%
2-Core
Avg. Dual Core Speed 		174 Pts 186 Pts Slightly faster dual-core speed.
+7%
4-Core
Avg. Quad Core Speed 		281 Pts 300 Pts Slightly faster quad-core speed.
+7%
8-Core
Avg. Octa Core Speed 		300 Pts 319 Pts Slightly faster octa-core speed.
+6%
Overclocked Score 
+1%
Memory
OC Memory Latency 		94.9 Pts +0% 94.6 Pts
1-Core
OC Single Core Speed 		114 Pts 114 Pts
2-Core
OC Dual Core Speed 		227 Pts +0% 226 Pts
4-Core
OC Quad Core Speed 		380 Pts 393 Pts +3%
8-Core
OC Octa Core Speed 		399 Pts 406 Pts +2%
Value & Sentiment 
+35%
Market Share
Based on 68,888,749 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.11 % 0.16 % Much higher market share.
+45%
Value
Value For Money 		68.2 % 91.4 % Much better value.
+34%
User Rating
UBM User Rating 		76 % +3% 74 %
Price
Price (score) 		$246 $93 Much cheaper.
+62%
Nice To Haves 
+8%
Age
Newest 		165 Months 150 Months Slightly more recent.
+9%
TDP
Thermal Design Power (TDP) 		95 Watts 77 Watts More energy efficient.
+19%
Cores
CPU Processing Cores 		4 cores 4 cores
Threads
CPU Processing Threads 		4 threads 4 threads
Lithography
Manufacturing process 		32 nm 22 nm Much newer manufacturing.
+31%
Base Clock
Base Clock Speed 		3.3 GHz 3.4 GHz +3%
Turbo Clock
Turbo Clock Speed 		3.7 GHz 3.8 GHz +3%
64-Core
OC Multi Core Speed 		407 Pts +0% 405 Pts
64-Core
Avg. Multi Core Speed 		304 Pts 321 Pts Slightly faster 64-core speed.
+6%
Specifications 
Series
CPU Architecture 		Sandy Bridge Ivy Bridge
Socket
Motherboard Socket 		LGA1155 FCLGA1155
Graphics
Integrated Graphics 		HD 3000 HD 4000
Launch Date
Launch Date 		Q1'11 Q2'12
Lithography
Lithography 		32 nm 22 nm
Recommended Price
Recommended Customer Price 		N/A $225.00 - $235.00
Max Turbo Frequency
Max Turbo Frequency 		3.7 GHz 3.8 GHz
Memory Types
Memory Types 		DDR3 1066/1333 DDR3 1333/1600
Memory Bandwidth
Max Memory Bandwidth 		21 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡ 		Intel® HD Graphics 3000 Intel® HD Graphics 4000
Graphics Base Frequency
Graphics Base Frequency 		850 MHz 650 MHz
Wireless Display
Intel® Wireless Display 		No Yes
# of Displays Supported
# of Displays Supported ‡ 		2 3
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.1 GHz 1.15 GHz
PCI Express Revision
PCI Express Revision 		2.0 3.0

More specs » More specs »
Conclusion 
Average Bench 65.9%
Average Bench 67.6%

The i5-2500K is a second generation Sandy Bridge processor which is currently two generations old and nearly three years out of date. The many users that had the good sense to purchase this processor should feel in no hurry to upgrade as it's still no slouch, even by today's standards. The benchmark figures indicate that, even at stock clock rates, in terms of real-world performance this processor is approximately 20% slower than the best currently available, not bad considering its age. Given that the 2500K has an unlocked multiplier upping its performance by 10% with stock cooling should not pose much of a problem for the majority of owners. Here is a detailed performance comparison of the 2500K vs 4670K.  [Jul '13 CPUPro]

MORE DETAILS

The Core i5-3570K Ivy Bridge processor is one of Intel's best performers to date. In terms of real world performance this processor offers far more than most users are likely to ever need. Scoring 2012 points on the PassMark Single Thread benchmark, the 3570K is within a few percent of the fastest processors currently available and at 77 watts TDP it's no energy hog either. The server orientated GeekBench and PassMark scores of 13920 and 7144 put the 3570K at just over the 50% marker in terms of total processing capacity compared to the other processors in the group test. For server based workloads more performance is available from the Core i7 range of processors but for typical consumer use this processor is already far more powerful than it needs to be. [May '13 CPUPro]

MORE DETAILS

User Builds 
143,007
185,516
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Processor Rankings (Price vs Performance) October 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]

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.

UserBenchmark of the month

Gaming Desktop ProGaming

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

Processors FAQ
AMD vs Intel: Gaming performance 2012-2021
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
What is multi core mixed speed?
What is multi core integer speed?
What is multi core floating point speed?
What is single core mixed CPU speed?
What is quad core mixed CPU speed?
What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
What is single core integer speed?
What is the GeekBench single core score?
What is a CPU?
What is the effective CPU speed index?
What is overclocking?
What is thermal design power (TDP)?
ALL FAQs »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark the gold standard for users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $165Nvidia RTX 4060 $293WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $112Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $82
Intel Core i5-13600K $200Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback