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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

EPYC 4585PX

2025

Why buy it

✅+0.6% higher PassMark.
✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads, plus 28 PCIe lanes vs 24.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Ryzen 9 9950X3D

2025

Why buy it

Trade-offs

❌Lower PassMark (70,177 vs 70,563).
❌Less compelling for workstation-style loads than EPYC 4585PX, which brings 16 cores / 32 threads and 28 PCIe lanes.

EPYC 4585PX

2025

Ryzen 9 9950X3D

2025

Why buy it

✅+0.6% higher PassMark.
✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads, plus 28 PCIe lanes vs 24.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.

Why buy it

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Trade-offs

❌Lower PassMark (70,177 vs 70,563).
❌Less compelling for workstation-style loads than EPYC 4585PX, which brings 16 cores / 32 threads and 28 PCIe lanes.

Quick Answers

So, is EPYC 4585PX better than Ryzen 9 9950X3D?

Not in a simple one-size-fits-all way. EPYC 4585PX makes more sense for workstation-style multi-core throughput, while Ryzen 9 9950X3D is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

For gaming, the two CPUs are effectively a wash in the available data.

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

For streaming, content creation, and heavier multitasking, EPYC 4585PX is the better fit. You are getting 0.6% better PassMark, backed by 16 cores and 32 threads.

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

EPYC 4585PX is the smarter buy today. EPYC 4585PX is in basically the same MSRP band at $699 MSRP versus $699 MSRP, and it gives you 0.6% higher PassMark. It is also 0.6% better value on MSRP (100.9 vs 100.4 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

EPYC 4585PX is the more future-proof choice for 2026 and beyond. You are getting more multi-core headroom with 16 cores / 32 threads instead of 16/32. That extra cache should hold up really well in CPU-limited games and high-refresh builds.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

EPYC 4585PX Benchmark Check

Ryzen 9 9950X3D Benchmark Check

Path of Exile 2

Preset	EPYC 4585PX	Ryzen 9 9950X3D
1080p
low	300 FPS	300 FPS
medium	274 FPS	274 FPS
high	227 FPS	227 FPS
ultra	191 FPS	191 FPS
1440p
low	276 FPS	276 FPS
medium	228 FPS	228 FPS
high	177 FPS	177 FPS
ultra	156 FPS	156 FPS
4K
low	190 FPS	190 FPS
medium	156 FPS	156 FPS
high	120 FPS	120 FPS
ultra	106 FPS	106 FPS

Open EPYC 4585PX Open Ryzen 9 9950X3D

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 4585PX	Ryzen 9 9950X3D
1080p
low	722 FPS	722 FPS
medium	615 FPS	615 FPS
high	457 FPS	457 FPS
ultra	385 FPS	385 FPS
1440p
low	591 FPS	591 FPS
medium	524 FPS	524 FPS
high	405 FPS	405 FPS
ultra	319 FPS	319 FPS
4K
low	332 FPS	332 FPS
medium	299 FPS	299 FPS
high	262 FPS	262 FPS
ultra	224 FPS	224 FPS

Open EPYC 4585PX Open Ryzen 9 9950X3D

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 4585PX	Ryzen 9 9950X3D
1080p
low	893 FPS	893 FPS
medium	725 FPS	725 FPS
high	652 FPS	652 FPS
ultra	560 FPS	560 FPS
1440p
low	720 FPS	720 FPS
medium	585 FPS	585 FPS
high	514 FPS	514 FPS
ultra	437 FPS	437 FPS
4K
low	516 FPS	516 FPS
medium	431 FPS	431 FPS
high	387 FPS	387 FPS
ultra	322 FPS	322 FPS

Open EPYC 4585PX Open Ryzen 9 9950X3D

League of Legends

League of Legends

Valorant

Preset	EPYC 4585PX	Ryzen 9 9950X3D
1080p
low	1116 FPS	1116 FPS
medium	1001 FPS	1001 FPS
high	878 FPS	878 FPS
ultra	792 FPS	792 FPS
1440p
low	872 FPS	872 FPS
medium	766 FPS	766 FPS
high	673 FPS	673 FPS
ultra	584 FPS	584 FPS
4K
low	637 FPS	637 FPS
medium	566 FPS	566 FPS
high	503 FPS	503 FPS
ultra	435 FPS	435 FPS

Open EPYC 4585PX Open Ryzen 9 9950X3D

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 4585PX and Ryzen 9 9950X3D

EPYC 4585PX

The EPYC 4585PX is manufactured by AMD. It was released in 13 May 2025 (less than a year ago). It is based on the Grado (2025) architecture. It features 16 cores and 32 threads. Base frequency is 4.3 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 170 Watt. Memory support: DDR5. Passmark benchmark score: 70,563 points. Launch price was $699.

Ryzen 9 9950X3D

The Ryzen 9 9950X3D is manufactured by AMD. It was released in 6 January 2025 (less than a year ago). It is based on the Granite Ridge (2024−2025) architecture. It features 16 cores and 32 threads. Base frequency is 4.3 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 170 Watt. Memory support: DDR5. Passmark benchmark score: 70,177 points. Launch price was $699.

⚡

Processing Power

Both the EPYC 4585PX and Ryzen 9 9950X3D share an identical 16-core/32-thread configuration. Boost clocks reach 5.7 GHz on the EPYC 4585PX versus 5.7 GHz on the Ryzen 9 9950X3D — identical boost frequencies (base: 4.3 GHz vs 4.3 GHz). The EPYC 4585PX uses the Grado (2025) architecture (4 nm), while the Ryzen 9 9950X3D uses Granite Ridge (2024−2025) (4 nm). In PassMark, the EPYC 4585PX scores 70,563 against the Ryzen 9 9950X3D's 70,177 — a 0.5% lead for the EPYC 4585PX. Both processors carry 128 MB (total) of L3 cache.

Feature	EPYC 4585PX	Ryzen 9 9950X3D
Cores / Threads	16 / 32	16 / 32
Boost Clock	5.7 GHz	5.7 GHz
Base Clock	4.3 GHz	4.3 GHz
L3 Cache	128 MB (total)	128 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	4 nm	4 nm
Architecture	Grado (2025)	Granite Ridge (2024−2025)
PassMark	70,563	70,177
Cinebench R23 Multi	—	44,500
Geekbench 6 Single	—	3,398
Geekbench 6 Multi	—	22,206

🧠

Memory & Platform

Both processors use the AM5 socket with PCIe 4.0. Maximum memory speed reaches 5600 on the EPYC 4585PX versus DDR5-5600 on the Ryzen 9 9950X3D — the EPYC 4585PX supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 4585PX supports up to 256 of RAM compared to 192 GB — 28.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (EPYC 4585PX) vs 24 (Ryzen 9 9950X3D) — the EPYC 4585PX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM5 (EPYC 4585PX) and X670E,X670,B650E,B650 (Ryzen 9 9950X3D).

Feature	EPYC 4585PX	Ryzen 9 9950X3D
Socket	AM5	AM5
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	5600+111900%	DDR5-5600
Max RAM Capacity	256	192 GB+78643100%
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	28+17%	24

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, AMD-V (EPYC 4585PX) vs true (Ryzen 9 9950X3D). Both include integrated graphics — AMD Radeon Graphics (EPYC 4585PX) and Radeon Graphics (2 Cores) (Ryzen 9 9950X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: EPYC 4585PX rivals Core Ultra 9 285K; Ryzen 9 9950X3D rivals Core Ultra 9 285K.

Feature	EPYC 4585PX	Ryzen 9 9950X3D
Integrated GPU	Yes	Yes
IGPU Model	AMD Radeon Graphics	Radeon Graphics (2 Cores)
Unlocked	Yes	Yes
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d, AMD-V	true

💰

Value Analysis

The EPYC 4585PX launched at $699 MSRP, while the Ryzen 9 9950X3D debuted at $699. On MSRP ($699 vs $699), the Ryzen 9 9950X3D is $0 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 4585PX delivers 100.9 pts/$ vs 100.4 pts/$ for the Ryzen 9 9950X3D — making the EPYC 4585PX the 0.5% better value option.