CPU Showdown

Athlon X4 845vsEPYC 9755

The Athlon X4 845 is a basic quad-core chip for budget office PCs and light home use, while the EPYC 9755 is a 128-core server monster for massive data centers and heavy virtualization.

AMD Athlon X4 845
4C / 4T · 65W
VS
AMD EPYC 9755
128C / 256T · 500W
AMD

Athlon X4 845

Carrizo · 28 nm · 2016

2score
3.7/ 5
0 votes
Cores / Threads
4 / 4
TDP
65W
Boost Clock
3.8 GHz
L3 Cache

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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.

Athlon X4 845
2
EPYC 9755Winner
100
EPYC 9755 leads by 4900.0% in aggregate performance.
Where they rank overall
#1EPYC 9755100
#2Ryzen Threadripper 9980X86
#499Pentium Gold G6500T2
#500Athlon X4 8452
#501Core i3-7100T2
Technical Specifications

Side-by-Side Specs

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

SpecsAthlon X4 845EPYC 9755
Cores
Total Cores4128
Threads4256
Base Clock3.5 GHz2.7 GHz
Boost Clock3.8 GHz4.1 GHz
Cache
L2 Cache2 MB128 MB
L3 Cache512 MB
Platform
SocketFM2+SP5
PCIePCIe 3.0PCIe 5.0
Power
Base TDP65W500W
General
ArchitectureCarrizoTurin
Process28 nm4 nm
Verdict

Which should you buy?

Winner overall

The EPYC 9755 wins overall for anyone needing serious server or workstation power, leaving the Athlon X4 845 far behind for basic tasks.

Best value

For budget buyers, the Athlon X4 845 is the smarter pick due to its low cost and sufficient performance for light home use.

When the other wins

The Athlon X4 845 is the right choice if you're building a cheap office PC and don't need the massive multi-threading or server features of the EPYC 9755.

FAQ

Frequently asked questions

Is the Athlon X4 845 better than the EPYC 9755?

Overall the EPYC 9755 is the stronger processor: it ranks higher in our aggregate performance score (100 vs 2 out of 100), so it leads the Athlon X4 845 in most workloads.

How much faster is the EPYC 9755 than the Athlon X4 845?

Based on our aggregated benchmark scores the EPYC 9755 is roughly 4900% faster than the Athlon X4 845 overall. The real-world gap varies by game, resolution and settings.

Which should you buy, the Athlon X4 845 or the EPYC 9755?

If you want the most performance, pick the EPYC 9755. If the Athlon X4 845 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.