COMPARE
Today's hottest
Amazon Ebay
deals
CPU
RANKINGS
TEST
YOUR CPU
ADD TO PC
BUILD
IntelBX8071512900K
AMD
▲ 842,579 ▼

16 Cores, 24 Threads @3.2GHz, Alder Lake.
Release date: Q4 2021.

VS
▲ 503 ▼
  

2 Cores, 2 Threads.
Release date ≈ Q3 2018.

Effective Speed 
+308%
Real World Speed
Performance profile from 69,514 user samples
Benchmark your CPU here
66,991 User Benchmarks
Best Bench: 124% Base clock 3.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 107% Base clock 3.2 GHz, turbo 3.9 GHz (avg)
Poor: 107% Great: 124%
SPEED RANK: 35th / 1468
Gaming
Gaming 117%
UFO
Desktop
Desktop 116%
UFO
Workstation
Workstation 138%
UFO
2,523 User Benchmarks
Best Bench: 39% Base clock 2.3 GHz, turbo 2.4 GHz (avg)
Worst Bench: 14% Base clock 2.3 GHz, turbo 1.3 GHz (avg)
Poor: 14% Great: 39%
SPEED RANK: 1377th / 1468
Gaming
Gaming 29%
Raft
Desktop
Desktop 34%
Sail boat
Workstation
Workstation 19%
Surfboard
Effective Speed
Effective CPU Speed 		117 % Hugely faster effective speed.
+308% 		28.5 %
Average Score 
+989%
Memory
Avg. Memory Latency 		80.8 Pts Much lower memory latency.
+70% 		47.5 Pts
1-Core
Avg. Single Core Speed 		207 Pts Hugely faster single-core speed.
+453% 		37.4 Pts
2-Core
Avg. Dual Core Speed 		412 Pts Hugely faster dual-core speed.
+634% 		56.1 Pts
4-Core
Avg. Quad Core Speed 		814 Pts Insanely faster quad-core speed.
+1,316% 		57.5 Pts
8-Core
Avg. Octa Core Speed 		1,516 Pts Insanely faster octa-core speed.
+2,469% 		59 Pts
Overclocked Score 
+811%
Memory
OC Memory Latency 		92.2 Pts Much lower OC memory latency.
+37% 		67.5 Pts
1-Core
OC Single Core Speed 		218 Pts Hugely faster OC single-core speed.
+347% 		48.8 Pts
2-Core
OC Dual Core Speed 		436 Pts Hugely faster OC dual-core speed.
+484% 		74.7 Pts
4-Core
OC Quad Core Speed 		858 Pts Insanely faster OC quad-core speed.
+1,053% 		74.4 Pts
8-Core
OC Octa Core Speed 		1,655 Pts Insanely faster OC octa-core speed.
+2,136% 		74 Pts
Value & Sentiment 
+∞%
Market Share
Based on 69,002,194 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.72 % Insanely higher market share.
+∞% 		0 %
User Rating
UBM User Rating 		84 % Much more popular.
+68% 		50 %
Nice To Haves 
+2,865%
Age
Newest 		36 Months Much more recent.
+51% 		74+ Months
64-Core
OC Multi Core Speed 		2,996 Pts Insanely faster OC 64-core speed.
+3,932% 		74.3 Pts
64-Core
Avg. Multi Core Speed 		2,804 Pts Insanely faster 64-core speed.
+4,613% 		59.5 Pts
Conclusion 
Average Bench 117%
Average Bench 28.5%

Intel’s 16-core flagship Alder Lake i9-12900K processor delivers a staggering performance improvement over it's predecessor (+70% 64-core). It features a new hybrid architecture which combines eight hyper-threaded performance cores with eight efficiency cores for a total of 24 threads. Alder Lake CPUs will require a new Z690 chipset which supports DDR5 memory and PCIe 5.0. At an MRSP of $590 USD, the i9-12900K is aimed at power users who demand the best of the best. That said, Intel’s 10-core 12600K matches the 12900K’s performance for the majority of consumer use cases at a 50% price discount. [Nov '21 CPUPro]

MORE DETAILS

User Builds 
66,991
2,523
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) November 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 $159Nvidia RTX 4060 $280WD Black SN850X M.2 2TB $135
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $84
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $370
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