CPU Showdown

EPYC 9755vsRyzen 9 9900X

The AMD EPYC 9755 is a 128-core server chip built for massive virtualization and data-crunching loads, while the Ryzen 9 9900X is a 12-core desktop processor aimed at gamers and content creators who need snappy single-core performance.

AMD EPYC 9755
128C / 256T · 500W
VS
AMD Ryzen 9 9900X
12C / 24T · 120W
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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AMD

Ryzen 9 9900X

Granite Ridge · 4 nm · 2024

33score
4.5/ 5
0 votes
Cores / Threads
12 / 24
TDP
120W
Boost Clock
5.6 GHz
L3 Cache
64 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.

EPYC 9755Winner
100
Ryzen 9 9900X
33
EPYC 9755 leads by 203.0% in aggregate performance.
Where they rank overall
#1EPYC 9755100
#2Ryzen Threadripper 9980X86
#27Ryzen Threadripper 3960X33
#28Ryzen 9 9900X33
#29Core Ultra 5 250K Plus31
Technical Specifications

Side-by-Side Specs

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

SpecsEPYC 9755Ryzen 9 9900X
Cores
Total Cores12812
Threads25624
Base Clock2.7 GHz4.4 GHz
Boost Clock4.1 GHz5.6 GHz
Cache
L2 Cache128 MB12 MB
L3 Cache512 MB64 MB
Platform
SocketSP5AM5
MemoryDDR5DDR5
PCIePCIe 5.0PCIe 5.0
iGPUAMD Radeon Graphics
Power
Base TDP500W120W
General
ArchitectureTurinGranite Ridge
Process4 nm4 nm
Verdict

Which should you buy?

Winner overall

The EPYC 9755 dominates raw multi-threaded work, but the Ryzen 9 9900X is the better choice for everyday desktop use and gaming.

Best value

For budget-minded buyers, the Ryzen 9 9900X offers far better performance per watt and cost for typical PC tasks.

When the other wins

If you need a fast, responsive machine for general productivity and play, the Ryzen 9 9900X is the smarter pick over the massive EPYC.

FAQ

Frequently asked questions

Is the EPYC 9755 better than the Ryzen 9 9900X?

Overall the EPYC 9755 is the stronger processor: it ranks higher in our aggregate performance score (100 vs 33 out of 100), so it leads the Ryzen 9 9900X in most workloads.

How much faster is the EPYC 9755 than the Ryzen 9 9900X?

Based on our aggregated benchmark scores the EPYC 9755 is roughly 203% faster than the Ryzen 9 9900X overall. The real-world gap varies by game, resolution and settings.

Which should you buy, the EPYC 9755 or the Ryzen 9 9900X?

If you want the most performance, pick the EPYC 9755. If the Ryzen 9 9900X 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.