Intel Core i9 13900KS vs AMD Ryzen 9 7950X3D

We compared two desktop CPUs: the 3.2 GHz Intel Core i9 13900KS with 24-cores against the 4.2 GHz AMD Ryzen 9 7950X3D with 16-cores. 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
Multi-Core Performance
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 7950X3D and 13900KS
Advantages of Intel Core i9 13900KS
  • Has 8 more physical cores
  • More than 11° C higher critical temperature
  • 5% higher Turbo Boost frequency (6 GHz vs 5.7 GHz)
Advantages of AMD Ryzen 9 7950X3D
  • Has 94208 KB larger L3 cache size
  • More modern manufacturing process – 5 versus 10 nanometers


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)


Full technical specification of Intel Core i9 13900KS and AMD Ryzen 9 7950X3D


Vendor Intel AMD
Released January 12, 2023 January 4, 2023
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Raptor Lake Zen 4 (Raphael)
Model number i9-13900KS -
Integrated GPU UHD Graphics 770 Radeon Graphics (Ryzen 7000)


Performance Cores
P-Cores 8 16
P-Threads 16 32
Base Frequency (P) 3.2 GHz 4.2 GHz
Turbo Boost Frequency (P) 6 GHz 5.7 GHz
Efficient Cores
E-Cores 16 -
E-Threads 16 -
Base Frequency (E) 2.4 GHz -
Turbo Boost Frequency (E) 4.3 GHz -
Total Cores 24 16
Total Threads 32 32
Bus Frequency 100 MHz 100 MHz
Multiplier 32x 42x
L1 Cache 80K (per core) 64K (per core)
L2 Cache 32MB (shared) 1MB (per core)
L3 Cache 36MB (shared) 128MB (shared)
Unlocked Multiplier Yes -


Transistors - 13.1 billions
Fabrication process 10 nm 5 nm
Socket LGA-1700 AM5
TDP 150 W 120 W
Max. Boost TDP 253 W 162 W
Peak temperature 100°C 89°C


Integrated Graphics Intel UHD Graphics 770 Radeon Graphics (Ryzen 7000)
GPU Base Clock 300 MHz 1500 MHz
GPU Boost Clock 1650 MHz 2200 MHz
Shading Units 256 128
TMUs 16 8
ROPs 8 4
Execution Units 32 2
TGP 15 W 15 W

Memory Support

Memory types DDR5-5600, DDR4-3200 DDR5-5200
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 89.6 GB/s -
ECC Support Yes Yes


Official site Intel Core i9 13900KS official page AMD Ryzen 9 7950X3D official page
PCI Express Version 5.0 5.0
PCI Express Lanes 20 28

Cast your vote

Choose between two processors
215 (44.6%)
267 (55.4%)
Total votes: 482


So which CPU will you choose: AMD Ryzen 9 7950X3D or Intel Core i9 13900KS?
Not a fan boy! 10 March 2023 16:56
I have not tried the AMD CPUs however coming from a 12900K with EVGA 3090 hybrid to the 13900KS I did notice a big step up in performance in MSFS 2020. Not that the GPU didn't help any(Asus Tuf 4090oc) However when looking at the stats FPS, latency, RAM, and GPU usage both on task manager and other apps it shows the higher clock speeds are welcome on this title, I'd say more than the cache. The i9 13900K(s) does have more cache than its predecessor still less than the AMD. But the clock speeds even got rid of the occasional stuttering and a decent uplift in FPS.
+5 Reply
im not givin out my name 20 March 2023 18:21
can i ask why you would upgrade your cpu when you already have something that fast?
+5 Reply
some dude 02 March 2023 20:04
Intel is clearly the better processor this time around.
+7 Reply
cpu oc 09 March 2023 18:01
Yeah, It's quite fast no doubt mine did clock 6ghz out of the box. And during gaming, it hovers around 5.6-5.7ghz. For certain games and sims clock speed means a lot over the 3D cache. I guess both are very very good CPUs and both can do wonders.
+2 Reply
im not givin out my name 09 March 2023 21:55
actually, very much not, because the 7950x3d obliterates it in gaming, only slightly slower in productivity, nearly 1/3 the power consumption (450 (unlocked) vs 162), and much better socket support.
+5 Reply
jack 22 March 2023 09:12
im not givin out my name, Not really, the performance is only notably better in gaming on F1 22 and Shadow of the Tomb Raider, with a 12% and 26% lead, respectively. In other games, the advantage is minimal, always less than 5fps. This is due to the use of slower 6000MHz RAM, which limits the i9's performance, considering that it can run at 8000MHz+. This is not something we can say for the 7950X3D. Please note that this is with the 13900K non-S variant, so the small lead in a few benchmarks is bound to get even smaller or be eliminated, if not overturned, on the higher-clocked processor with faster RAM.
0 Reply
jack 22 March 2023 09:17
im not givin out my name, Where did you get your TDP data? On this page, it clearly states that it's 253W versus 162W.
0 Reply
speedy 22 January 2023 23:54
I think that the L3 cache and in those times were electric bills getting higher the AMD deff wins, with less power usage and pretty darn fast. maybe it will not be faster in all games than intel but it will be most of the time because of this L3 cache. and even when this AMD CPU is like couple % less fast than intel it saves a lot of electric bill costs so overall a winner for me and for their new technology where the intel is just adding things instead of working around getting smarter. I think every company can make things bigger by just adding more GHz and more power usage and everything, but making things smaller but with more speed is what we need in the future.
+16 Reply
im not givin out my name 13 February 2023 18:09
This is it exactly, my 12600k has massive power consumption and I hate it.
+5 Reply
Red 17 January 2023 22:09
@bartol875 AMD and Intel are similar in ST and MT In the game, 7950X3D is better than 13900KS.
+25 Reply
bartol875 13 January 2023 08:10
I am really used to Intel, so I voted on it, but I understand, why people think AMD is better.
+25 Reply
key 27 February 2023 20:51
this basically all just which one you like better both are equivalent
+3 Reply