AMD EPYC 7643 vs AMD EPYC 75F3

Updated Nov 2026 · Scored by the Let’s Compare Data Engine · How we score

For most buyers the AMD EPYC 7643 is the better pick — it scores 88/100 to the AMD EPYC 75F3's 62, leading on Core Specifications and Benchmark. Choose the AMD EPYC 75F3 instead if you want to spend less.

Verdict

Our overall take, at a glance

AMD EPYC 7643 leads overall

AMD EPYC 7643

AMD EPYC 75F3

Why it stands out

Core Specifications Cores: 48
Core Specifications Threads: 96
Benchmark PassMark CPU Mark: 76,259 (18% more)

Winner by category for AMD EPYC 7643 vs AMD EPYC 75F3
Category	AMD EPYC 7643	AMD EPYC 75F3	Winner
Core Specifications	71	38	AMD EPYC 7643
Integrated Graphics	0	0	Tie
Benchmark	96	74	AMD EPYC 7643

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Nov 2026.

AMD EPYC 7643

The AMD EPYC 7643 is a high-density enterprise server processor designed for data centers and virtualized environments. Built on a 7nm process, it features 48 cores and 96 threads alongside a massive 256 MB L3 cache. Operating at a base frequency of 2.3 GHz with a maximum boost of 3.6 GHz, this chip balances heavy parallel compute capabilities with a standard 225W power envelope.

Best for High-density server virtualization and multi-tenant cloud infrastructureBest for Data-intensive compute clusters utilizing large L3 cache access

Pros

High core density with 48 cores and 96 threads for massive multi-threaded throughput
Generous 256 MB L3 cache to support memory-bound enterprise workloads
Reasonable power draw with a 225W base TDP and 240W maximum limit

Cons

Modest 2.3 GHz base clock speed can limit performance in single-threaded tasks
No integrated graphics capability
Locked CPU multiplier prevents manual frequency tuning

AMD EPYC 75F3

The AMD EPYC 75F3 is a server and workstation processor featuring 32 cores and 64 threads built on a 7nm lithography process. Released in March 2021, it operates at a base clock of 3.0 GHz with a maximum boost frequency of 4.0 GHz and includes 256 MB of L3 cache. Designed for high-throughput enterprise workloads, the processor has a rated thermal design power of 280W.

Best for Enterprise servers and workstations running compute-heavy applications that beneBest for Data-intensive workloads that profit from large L3 cache allocations

Pros

High peak boost frequency of 4.0 GHz paired with 32 cores delivers strong per-core and parallel computing performance
Large 256 MB L3 cache aids memory-intensive enterprise and workstation applications
Strong multi-threaded performance score of 64,505 in PassMark CPU Mark benchmarks

Cons

Substantial 280W power requirement demands robust thermal management and infrastructure
Lacks integrated graphics, requiring a discrete GPU for display output
Multiplier is locked, offering no option for manual clock adjustment

Value for Money

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AMD EPYC 7643

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AMD EPYC 75F3

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Performance

Higher benchmark score = faster

AMD EPYC 764376,259

AMD EPYC 75F364,505

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Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.

Review Videos

Hand-picked expert reviews for each product

Detailed Specifications

The full spec sheet, side by side

Core Specifications

Feature	AMD EPYC 7643	AMD EPYC 75F3
Cores	48	32
Threads	96	64
Base Frequency	2.3 GHz	3 GHz30% more
Base Power Consumption	225 W	280 W24% more
Maximum Frequency	3.6 GHz	4 GHz11% more
Maximum Power Consumption	240 W	280 W17% more
L1 Cache	3,072 KB	N/A
L2 Cache	24 MB	N/A
L3 Cache	256 MB	256 MB
Lithography Process	7 nm	7 nm
Is unlocked	N/A	N/A

Integrated Graphics

Feature	AMD EPYC 7643	AMD EPYC 75F3
Model	N/A	N/A

Benchmark

Feature	AMD EPYC 7643	AMD EPYC 75F3
PassMark CPU Mark	76,25918% more	64,505

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

Frequently Asked Questions

Common questions about AMD EPYC 7643 vs AMD EPYC 75F3 comparison

They are closely matched: AMD EPYC 7643 scores 87/100 and AMD EPYC 75F3 scores 86/100 in our overall comparison — within 1 point. Neither is a clear winner overall, so the decision comes down to the specific features and price that matter most to you.

AMD EPYC 7643 and AMD EPYC 75F3 are compared side by side above across every spec in the cpus category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 87/100 for AMD EPYC 7643 and 86/100 for AMD EPYC 75F3.

It's close — AMD EPYC 7643 (87/100) and AMD EPYC 75F3 (86/100) score almost the same. Pick based on price and the individual specs that matter most to you; the comparison above shows where each one pulls ahead.