CPU Showdown

Core i7-6900KvsEPYC 9755

The Core i7-6900K is an older desktop enthusiast chip for PC builders who need solid single-threaded speed, while the EPYC 9755 is a modern server monster for data centers running massive parallel workloads.

Intel Core i7-6900K
8C / 16T · 140W
VS
AMD EPYC 9755
128C / 256T · 500W
Intel

Core i7-6900K

Broadwell-E · 14 nm · 2016

9score
3.5/ 5
0 votes
Cores / Threads
8 / 16
TDP
140W
Boost Clock
4.0 GHz
L3 Cache
20 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 i7-6900K
9
EPYC 9755Winner
100
EPYC 9755 leads by 1011.1% in aggregate performance.
Where they rank overall
#1EPYC 9755100
#2Ryzen Threadripper 9980X86
#291Ryzen 7 2700E9
#292Core i7-6900K9
#293Ryzen 3 PRO 8300GE9
Technical Specifications

Side-by-Side Specs

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

SpecsCore i7-6900KEPYC 9755
Cores
Total Cores8128
Threads16256
Base Clock3.2 GHz2.7 GHz
Boost Clock4.0 GHz4.1 GHz
Cache
L2 Cache2 MB128 MB
L3 Cache20 MB512 MB
Platform
SocketFCLGA2011SP5
MemoryDDR4DDR5
PCIePCIe 3.0PCIe 5.0
Power
Base TDP140W500W
General
ArchitectureBroadwell-ETurin
Process14 nm4 nm
Verdict

Which should you buy?

Winner overall

The EPYC 9755 crushes the Core i7-6900K in every performance metric, making it the clear winner for demanding workloads.

Best value

The Core i7-6900K is the smarter pick for budget buyers needing a capable older platform for light tasks.

When the other wins

The Core i7-6900K is the right choice if you need a cheap CPU for a legacy workstation running older software.

FAQ

Frequently asked questions

Is the Core i7-6900K better than the EPYC 9755?

Overall the EPYC 9755 is the stronger processor: it ranks higher in our aggregate performance score (100 vs 9 out of 100), so it leads the Core i7-6900K in most workloads.

How much faster is the EPYC 9755 than the Core i7-6900K?

Based on our aggregated benchmark scores the EPYC 9755 is roughly 1011% faster than the Core i7-6900K overall. The real-world gap varies by game, resolution and settings.

Which should you buy, the Core i7-6900K or the EPYC 9755?

If you want the most performance, pick the EPYC 9755. If the Core i7-6900K 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.