Intel Core i9 12900K vs AMD Ryzen 9 5950X

We compared two 16-core desktop CPUs: the 3.2 GHz Intel Core i9 12900K against the 3.4 GHz AMD Ryzen 9 5950X. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.


General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 5950X and 12900K
Advantages of Intel Core i9 12900K
  • Newer - released 1-year and 1-month later
  • Around 29.12 GB/s (61%) higher theoretical memory bandwidth
  • Newer PCI Express version – 5.0
  • 20% faster in a single-core Geekbench v5 test - 2191 vs 1825 points
  • Includes an integrated GPU Intel UHD Graphics 770
  • 6% higher Turbo Boost frequency (5.2 GHz vs 4.9 GHz)
Advantages of AMD Ryzen 9 5950X
  • Has 34 MB larger L3 cache size
  • More modern manufacturing process – 7 versus 10 nanometers
  • Consumes up to 16% less energy than the Core i9 12900K – 105 vs 125 Watt


Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
By purchasing through links on this site, we may receive a commission from Amazon. This does not affect our assessment methodology.


Full technical specification of Intel Core i9 12900K and AMD Ryzen 9 5950X


Vendor Intel AMD
Released October 27, 2021 October 8, 2020
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Alder Lake-S Vermeer
Model number i9-12900K -
Socket LGA-1700 AM4
Integrated GPU UHD Graphics 770 No


Cores 16 16
Threads 24 32
Base Frequency 3.2 GHz 3.4 GHz
Turbo Boost Frequency 5.2 GHz 4.9 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 32x 34x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 14MB (shared) 512K (per core)
L3 Cache 30MB (shared) 64MB (shared)
Unlocked Multiplier Yes Yes


Transistors - 19.2 billions
Fabrication process 10 nm 7 nm
TDP 125 W 105 W
Max. temperature 100°C 95°C


Integrated Graphics Intel UHD Graphics 770 -
GPU Base Clock 300 MHz -
GPU Boost Clock 1550 MHz -
Shading Units 256 -
TMUs 16 -
ROPs 8 -
Execution Units 32 -
TGP 15 W -

Memory support

Memory types DDR5-4800, DDR4-3200 DDR4-3200
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 76.8 GB/s 47.68 GB/s
ECC Support Yes Yes


Official site Intel Core i9 12900K official page AMD Ryzen 9 5950X official page
PCI Express Version 5.0 4.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
752 (51.3%)
713 (48.7%)
Total votes: 1465


So which CPU will you choose: AMD Ryzen 9 5950X or Intel Core i9 12900K?
kau 05 April 2022 13:41
Why do we need e-cores in high-end desktop processors? are ppl using these chips for checking mail on chrome?!
+7 Reply
Bbb 23 April 2022 15:55
They are small and efficient so they give a better boss to the multi-core because instead of two regular cores you can put eight e cores, they also allow the computer to perform additional tasks while all the p cores deal with more important tasks.
+7 Reply
Stats 28 March 2022 19:57
I have 5950x for 4 months now and all 32 cores I have running a base clock of 4.7ghz and boost will hit 5.1 to 5.2 on a couple of cores, so 12900k is not that impressive to me. What to impress us with a chip that will run a 5ghz base clock then we can talk, AMD was the gaming chip to have back in the day then Intel took over and never looked back till AMD came out of the shadows with new technology. While Intel had a market they just set on their hills changing chip little here giving it a new name and saying new, while AMD was working on new 7nm, so we will see what future holds but for now the silicon is the limitation of these fast chips and to they figure something out to replace it will never see anything faster.
+2 Reply
Egg 20 April 2022 01:52
32 cores? Do you mean 32 threads?
+14 Reply
Stefan 24 March 2022 20:48
Honestly, the 5950x has 2.5-year-old technology and still performs really well...
+1 Reply
mick_sad 15 March 2022 18:58
all things competitive as the result. But I have practical experience in both so, you should not concern only CPU because other parts help to increase the performance. so "AMD" "INTEL" both are good but higher performance and higher graphics AMD did well perform.
+1 Reply
Pubg 06 January 2022 07:02
AMD + Samsung = new powerful processor will come in 2022 Q3 which will be more powerful than Intel core i9 12900k. AMD is always the winner. Keep calm and believe in AMD ryzen ... 😌😌
+11 Reply
Sks 11 January 2022 15:35
Intel did not stop making processors, for AMD to win😂.
+20 Reply
Kamal B. 25 February 2022 21:19
In your dreams not gonna happen. 😂
+3 Reply
sard 07 March 2022 14:21
The only way AMD would "win" is if Intel stopped making processors altogether. The 13th gen Intels will blow AMD out of the water.
+5 Reply
Naman 09 March 2022 14:40
sard, AMD's previous generation CPU is giving competition to intel latest generation after one year intel is just equivalent to AMD.
+3 Reply
Immortal 20 May 2022 12:11
Don’t forget about the threadripper
+1 Reply
the comeback of competition 07 November 2021 06:58
FINALLY! Intel is back. AMD Needs Competition!
+30 Reply
Nayeem 18 November 2021 19:09
Lol, wait for rdna 4 CPUs. Those CPUs gonna crush the i9 12900k. just wait on 2022 Q3.
+17 Reply
Kam B 09 December 2021 18:57
Nayeem, I heard rumors that raptor lake might be a disappointment.
+8 Reply
Wews 03 January 2022 06:52
Kam B, Kam B, I guess it's just early testing like the flagship snapdragon 8 gen 1 got lower single and multicore results despite being a flagship processor.
+5 Reply
jasmeet 24 February 2022 07:49
Nayeem, just you wait on 2022 q3 for intel i9 13900k haha
+6 Reply
Nerd 25 May 2022 09:34
jasmeet, Raptor lake will again use the outdated 10nm node so the only way it can give better performance will be by inc no of cores and inc clock speeds (which inc the already absurdly large power consumption) better to wait for meteor lake with an intel 4 node (7nm).
+3 Reply