CPU Showdown

Core i9-12900KSvsEPYC 9755

The Core i9-12900KS is a high-end desktop chip for gamers and enthusiasts who want the fastest single-core speed for everyday apps, while the EPYC 9755 is a server monster built for massive parallel workloads in data centers.

Intel Core i9-12900KS
16C / 24T · 150W
VS
AMD EPYC 9755
128C / 256T · 500W
Intel

Core i9-12900KS

Alder Lake-S · Intel 7 nm · 2022

26score
3.7/ 5
0 votes
Cores / Threads
16 / 24
TDP
150W
Boost Clock
5.3 GHz
L3 Cache
30 MB

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AMD

EPYC 9755

Turin · 4 nm · 2024

100score
2.8/ 5
0 votes
Cores / Threads
128 / 256
TDP
500W
Boost Clock
4.1 GHz
L3 Cache
512 MB

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Aggregate Performance

Overall Performance Score

A unified score from combined synthetic and real-world benchmarks. 100 represents the fastest desktop CPU available.

Core i9-12900KS
26
EPYC 9755Winner
100
EPYC 9755 leads by 284.6% in aggregate performance.
Where they rank overall
#1EPYC 9755100
#2Ryzen Threadripper 9980X86
#47Ryzen 9 5900XT26
#48Core i9-12900KS26
#49Core Ultra 5 245KF26
Technical Specifications

Side-by-Side Specs

Every detail compared. Highlighted cells indicate the leading value for that metric.

SpecsCore i9-12900KSEPYC 9755
Cores
Total Cores16128
Threads24256
Base Clock3.4 GHz2.7 GHz
Boost Clock5.3 GHz4.1 GHz
Cache
L2 Cache20 MB128 MB
L3 Cache30 MB512 MB
Platform
SocketFCLGA1700SP5
PCIePCIe 5.0 and 4.0PCIe 5.0
iGPUIntel UHD Graphics 770
Power
Base TDP150W500W
General
ArchitectureAlder Lake-STurin
Verdict

Which should you buy?

Winner overall

The EPYC 9755 wins overall for heavy server workloads, with massively more cores and memory than the Core i9-12900KS.

Best value

For budget buyers, the Core i9-12900KS is the smarter pick, offering strong performance at a much lower cost for everyday tasks.

When the other wins

The Core i9-12900KS is the right choice for a gaming PC or home workstation where single-threaded speed matters more than core count.

FAQ

Frequently asked questions

Is the Core i9-12900KS better than the EPYC 9755?

Overall the EPYC 9755 is the stronger processor: it ranks higher in our aggregate performance score (100 vs 26 out of 100), so it leads the Core i9-12900KS in most workloads.

How much faster is the EPYC 9755 than the Core i9-12900KS?

Based on our aggregated benchmark scores the EPYC 9755 is roughly 285% faster than the Core i9-12900KS overall. The real-world gap varies by game, resolution and settings.

Which should you buy, the Core i9-12900KS or the EPYC 9755?

If you want the most performance, pick the EPYC 9755. If the Core i9-12900KS is meaningfully cheaper where you shop, it can be the better value for similar real-world results — check current prices and the full spec comparison above before deciding.