Infrastructure decision support

CPU Comparison Studio

Compare two CPUs side-by-side using ComputeAtlas platform data to evaluate compute density, power envelope, I/O headroom, and overall AI workstation suitability.

This is a platform planning view: use it to validate host capacity and expansion fit before final part selection.

Select two CPUs to run a focused platform-level comparison across lanes, memory channels, power, and budget.

CPU A

CPU B

Field	EPYC 9965	EPYC 9845
Name	EPYC 9965	EPYC 9845
Cores	192	128
Threads	384	256
TDP / watts	400 W	360 W
Memory channels	12	12
PCIe lanes	128	128
Max GPUs supported	8	8
AI workstation rating	Elite	Elite
Price	$14,900	$10,900

Decision notes

Lane budget

Both options expose similar PCIe lane capacity, so platform expansion is roughly equivalent.

Workload fit

EPYC 9965 offers more cores for highly parallel workloads and preprocessing.

Power + cooling

EPYC 9965 carries the lighter TDP target and may reduce cooling and PSU pressure.

Platform profile

Both CPUs map to a server-first platform category, helping keep motherboard strategy consistent.

Key difference

EPYC 9965 carries 64 more CPU cores for parallel compile and data prep tasks.

Next step: confirm lane, cooling, and budget constraints in the builder before finalizing the full workstation configuration. Listed price delta: $4,000.