CPU Showdown

Core i9-9900KSvsEPYC 9755

The Intel Core i9-9900KS is a high-frequency desktop chip for gamers and single-threaded tasks, while the AMD EPYC 9755 is a massive server CPU built for heavy multi-threaded workloads and data centers.

Intel Core i9-9900KS
8C / 16T · 127W
VS
AMD EPYC 9755
128C / 256T · 500W
Intel

Core i9-9900KS

Coffee Lake-R · 14 nm · 2019

12score
3.7/ 5
0 votes
Cores / Threads
8 / 16
TDP
127W
Boost Clock
5.0 GHz
L3 Cache
16 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 i9-9900KS
12
EPYC 9755Winner
100
EPYC 9755 leads by 733.3% in aggregate performance.
Where they rank overall
#1EPYC 9755100
#2Ryzen Threadripper 9980X86
#230Core i5-11600KF12
#231Core i9-9900KS12
#232Ryzen 5 550012
Technical Specifications

Side-by-Side Specs

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

SpecsCore i9-9900KSEPYC 9755
Cores
Total Cores8128
Threads16256
Base Clock4.0 GHz2.7 GHz
Boost Clock5.0 GHz4.1 GHz
Cache
L2 Cache2 MB128 MB
L3 Cache16 MB512 MB
Platform
SocketFCLGA1151SP5
MemoryDDR4DDR5
PCIePCIe 3.0PCIe 5.0
iGPUIntel UHD Graphics 630
Power
Base TDP127W500W
General
ArchitectureCoffee Lake-RTurin
Process14 nm4 nm
Verdict

Which should you buy?

Winner overall

The EPYC 9755 wins overall for heavy server tasks, but the Core i9-9900KS is better for low-power desktop gaming.

Best value

For budget buyers, the Core i9-9900KS offers better value for everyday computing and gaming despite its older architecture.

When the other wins

Choose the Core i9-9900KS for a quiet home gaming PC where low heat and single-thread speed matter more than multi-core grunt.

FAQ

Frequently asked questions

Is the Core i9-9900KS better than the EPYC 9755?

Overall the EPYC 9755 is the stronger processor: it ranks higher in our aggregate performance score (100 vs 12 out of 100), so it leads the Core i9-9900KS in most workloads.

How much faster is the EPYC 9755 than the Core i9-9900KS?

Based on our aggregated benchmark scores the EPYC 9755 is roughly 733% faster than the Core i9-9900KS overall. The real-world gap varies by game, resolution and settings.

Which should you buy, the Core i9-9900KS or the EPYC 9755?

If you want the most performance, pick the EPYC 9755. If the Core i9-9900KS 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.