CPU Showdown

Core i9-7900XvsEPYC 9755

The Core i9-7900X is a 10-core enthusiast desktop chip for gamers and creators who need high single-thread speed, while the EPYC 9755 is a 128-core server monster for massive parallel workloads and data centers.

Intel Core i9-7900X
10C / 20T · 140W
VS
AMD EPYC 9755
128C / 256T · 500W
Intel

Core i9-7900X

Skylake (server) · 14 nm · 2017

13score
4.1/ 5
0 votes
Cores / Threads
10 / 20
TDP
140W
Boost Clock
4.5 GHz
L3 Cache
13.75 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 i9-7900X
13
EPYC 9755Winner
100
EPYC 9755 leads by 669.2% in aggregate performance.
Where they rank overall
#1EPYC 9755100
#2Ryzen Threadripper 9980X86
#206Ryzen 7 PRO 5755GE13
#207Core i9-7900X13
#208Core i7-11700F12
Technical Specifications

Side-by-Side Specs

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

SpecsCore i9-7900XEPYC 9755
Cores
Total Cores10128
Threads20256
Base Clock3.3 GHz2.7 GHz
Boost Clock4.5 GHz4.1 GHz
Cache
L2 Cache10 MB128 MB
L3 Cache13.75 MB512 MB
Platform
SocketSocket R4SP5
MemoryDDR4DDR5
PCIePCIe 3.0PCIe 5.0
Power
Base TDP140W500W
General
ArchitectureSkylake (server)Turin
Process14 nm4 nm
Verdict

Which should you buy?

Winner overall

The EPYC 9755 dominates the Core i9-7900X overall for any serious multi-threaded work, thanks to its massive core count and modern architecture.

Best value

For budget buyers, the older Core i9-7900X is the smarter pick if you need a capable processor for lighter tasks without overspending.

When the other wins

The Core i9-7900X is the right choice for a legacy workstation rebuild where motherboard compatibility and lower power draw matter more than raw throughput.

FAQ

Frequently asked questions

Is the Core i9-7900X better than the EPYC 9755?

Overall the EPYC 9755 is the stronger processor: it ranks higher in our aggregate performance score (100 vs 13 out of 100), so it leads the Core i9-7900X in most workloads.

How much faster is the EPYC 9755 than the Core i9-7900X?

Based on our aggregated benchmark scores the EPYC 9755 is roughly 669% faster than the Core i9-7900X overall. The real-world gap varies by game, resolution and settings.

Which should you buy, the Core i9-7900X or the EPYC 9755?

If you want the most performance, pick the EPYC 9755. If the Core i9-7900X 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.