EPYC 9634 vs EPYC 9745

EPYC 9634 vs EPYC 9745 Performance Spectrum

EPYC 9634

84 / 168

107,944

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen 9 9950X3D

Ryzen Threadripper 7960X

Ryzen Threadripper PRO 7975WX

Ryzen Threadripper PRO 7985WX

Ryzen Threadripper 7980X

Ryzen Threadripper 9980X

Ryzen Threadripper PRO 7995WX

EPYC 9745

128 / 256

130,698

+21.1%

Ryzen 9 9950X3D

Ryzen Threadripper 7960X

Ryzen Threadripper 7970X

Ryzen Threadripper 9970X

Ryzen Threadripper 7980X

Ryzen Threadripper 9980X

Ryzen Threadripper PRO 9985WX

Ryzen Threadripper PRO 9995WX

About PassMark

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

EPYC 9634 vs EPYC 9745 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

EPYC 9634 vs EPYC 9745: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

EPYC 9634

2022

Why buy it

✅Better for gaming: +9.6% higher average FPS across 50 shared CPU benchmark tests.
✅+50% larger total L3 cache (384 MB vs 256 MB).
✅Costs $1,837 less on MSRP ($10,304 MSRP vs $12,141 MSRP).
✅Draws 290W instead of 400W, a 110W reduction.

Trade-offs

❌Lower PassMark (107,944 vs 130,698).

EPYC 9745

2024

Why buy it

✅+21.1% higher PassMark.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 9634 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (256 MB vs 384 MB).
❌
17.8% HIGHER MSRP
$12,141 MSRPvs$10,304 MSRP
❌37.9% higher power demand at 400W vs 290W.

Quick Answers

So, is EPYC 9745 better than EPYC 9634?

It depends on what you want from the system. For gaming, EPYC 9634 is ahead with a 9.6% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, EPYC 9745 pulls ahead with 21.1% better PassMark. EPYC 9634 also has the bigger cache pool with 50% larger total L3 cache (384 MB vs 256 MB).

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, EPYC 9745 is the stronger fit. You are getting 21.1% better PassMark, backed by 128 cores and 256 threads.

Which one is the smarter buy today, not just the cheaper CPU?

EPYC 9745 is the better buy right now. EPYC 9745 comes in 17.8% more expensive on MSRP at $12,141 MSRP versus $10,304 MSRP, and it still gives you 21.1% better PassMark. The compromise is that EPYC 9634 is still the better pure gaming CPU with a 9.6% average FPS lead across 50 shared CPU game tests in our data. It is also 2.8% better value on MSRP (10.8 vs 10.5 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

Which one is more future-proof for 2026 and beyond?

EPYC 9745 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2022) and more multi-core headroom with 128 cores / 256 threads instead of 84/168. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 9634 vs EPYC 9745 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

EPYC 9634

The EPYC 9634 is manufactured by AMD. It was released in 10 November 2022 (3 years ago). It is based on the Genoa (2022−2023) architecture. It features 84 cores and 168 threads. Base frequency is 2.25 GHz, with boost up to 3.7 GHz. L3 cache: 384 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: SP5. Thermal design power (TDP): 290 Watt. Memory support: DDR5-4800. Passmark benchmark score: 107,944 points. Launch price was $10,304.

EPYC 9745

The EPYC 9745 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 128 cores and 256 threads. Base frequency is 2.4 GHz, with boost up to 3.7 GHz. L3 cache: 256 MB (total). L2 cache: 1 MB (per core). Built on 3 nm process technology. Socket: SP5. Thermal design power (TDP): 400 Watt. Memory support: DDR5. Passmark benchmark score: 130,698 points. Launch price was $12,141.

⚡

Processing Power

The EPYC 9634 packs 84 cores / 168 threads, while the EPYC 9745 offers 128 cores / 256 threads — the EPYC 9745 has 44 more cores. Boost clocks reach 3.7 GHz on the EPYC 9634 versus 3.7 GHz on the EPYC 9745 — identical boost frequencies (base: 2.25 GHz vs 2.4 GHz). The EPYC 9634 uses the Genoa (2022−2023) architecture (5 nm, 6 nm), while the EPYC 9745 uses Turin (2024) (3 nm). In PassMark, the EPYC 9634 scores 107,944 against the EPYC 9745's 130,698 — a 19.1% lead for the EPYC 9745. L3 cache: 384 MB (total) on the EPYC 9634 vs 256 MB (total) on the EPYC 9745.

Feature	EPYC 9634	EPYC 9745
Cores / Threads	84 / 168	128 / 256+52%
Boost Clock	3.7 GHz	3.7 GHz
Base Clock	2.25 GHz	2.4 GHz+7%
L3 Cache	384 MB (total)+50%	256 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	5 nm, 6 nm	3 nm-40%
Architecture	Genoa (2022−2023)	Turin (2024)
PassMark	107,944	130,698+21%
Geekbench 6 Single	1,800	—
Geekbench 6 Multi	85,000	—

🧠

Memory & Platform

Both processors use the SP5 socket with PCIe 5.0. Maximum memory speed reaches DDR5-4800 on the EPYC 9634 versus DDR5-6000 on the EPYC 9745 — the EPYC 9745 supports 25% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 6144 GB of RAM. Both feature 12-channel memory with ECC support. Both provide 128 PCIe lanes. Chipset compatibility: SoC (EPYC 9634) and SP5 (EPYC 9745).

Feature	EPYC 9634	EPYC 9745
Socket	SP5	SP5
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-4800	DDR5-6000+25%
Max RAM Capacity	6144 GB	6 TB
RAM Channels	12	12
ECC Support	Yes	Yes
PCIe Lanes	128	128

🔧

Advanced Features

Virtualization support: AMD-V (EPYC 9634) vs AMD-V, SEV-SNP (EPYC 9745). Primary use case: EPYC 9634 targets Server/Datacenter, EPYC 9745 targets Data Center / High Density. Direct competitor: EPYC 9634 rivals Xeon 8470; EPYC 9745 rivals Xeon 6980P.

Feature	EPYC 9634	EPYC 9745
Integrated GPU	No	No
Unlocked	No	—
AVX-512	Yes	—
Virtualization	AMD-V	AMD-V, SEV-SNP
Target Use	Server/Datacenter	Data Center / High Density

💰

Value Analysis

At launch, the EPYC 9634 was priced at $10304, while the EPYC 9745 came in at $12141. On launch pricing ($10304 vs $12141), EPYC 9634 was $1837 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 9634 delivers 10.5 pts/$ vs 10.8 pts/$ for the EPYC 9745 — making the EPYC 9745 the 2.7% better value option.

Feature	EPYC 9634	EPYC 9745
MSRP	$10304-15%	$12141
Performance per Dollar	10.5	10.8+3%
Release Date	2022	2024

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