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 7663

2021

Why buy it

✅+100% larger total L3 cache (256 MB vs 128 MB).
✅Better for workstations and heavier parallel workloads: 56 cores / 112 threads, plus 128 PCIe lanes vs 28.
✅357.1% more PCIe lanes (128 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7950X3D across 13 shared CPU benchmark tests.
❌Lower Geekbench multi-core (12,380 vs 19,643).
❌Lower PassMark per dollar, at 12.9 vs 89.2 PassMark/$ ($6,366 MSRP vs $699 MSRP).
❌100% higher power demand at 240W vs 120W.
❌Older platform position on SP3 with DDR4, while Ryzen 9 7950X3D moves to AM5 and DDR5.

Ryzen 9 7950X3D

2023

Why buy it

✅Better for gaming: +71.4% higher average FPS across 13 shared CPU benchmark tests.
✅Costs $5,667 less on MSRP ($699 MSRP vs $6,366 MSRP).
✅Delivers 591.2% more PassMark for each dollar spent, at 89.2 vs 12.9 PassMark/$ ($699 MSRP vs $6,366 MSRP).
✅Draws 120W instead of 240W, a 120W reduction.
✅Newer platform on AM5 with DDR5 support instead of SP3 and DDR4.

Trade-offs

❌Smaller total L3 cache (128 MB vs 256 MB).
❌Less compelling for workstation-style loads than EPYC 7663, which brings 56 cores / 112 threads and 128 PCIe lanes.

EPYC 7663

2021

Ryzen 9 7950X3D

2023

Why buy it

✅+100% larger total L3 cache (256 MB vs 128 MB).
✅Better for workstations and heavier parallel workloads: 56 cores / 112 threads, plus 128 PCIe lanes vs 28.
✅357.1% more PCIe lanes (128 vs 28) for storage and expansion-heavy builds.

Why buy it

✅Better for gaming: +71.4% higher average FPS across 13 shared CPU benchmark tests.
✅Costs $5,667 less on MSRP ($699 MSRP vs $6,366 MSRP).
✅Delivers 591.2% more PassMark for each dollar spent, at 89.2 vs 12.9 PassMark/$ ($699 MSRP vs $6,366 MSRP).
✅Draws 120W instead of 240W, a 120W reduction.
✅Newer platform on AM5 with DDR5 support instead of SP3 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7950X3D across 13 shared CPU benchmark tests.
❌Lower Geekbench multi-core (12,380 vs 19,643).
❌Lower PassMark per dollar, at 12.9 vs 89.2 PassMark/$ ($6,366 MSRP vs $699 MSRP).
❌100% higher power demand at 240W vs 120W.
❌Older platform position on SP3 with DDR4, while Ryzen 9 7950X3D moves to AM5 and DDR5.

Trade-offs

❌Smaller total L3 cache (128 MB vs 256 MB).
❌Less compelling for workstation-style loads than EPYC 7663, which brings 56 cores / 112 threads and 128 PCIe lanes.

Quick Answers

So, is Ryzen 9 7950X3D better than EPYC 7663?

Not in a simple one-size-fits-all way. EPYC 7663 makes more sense for workstation-style multi-core throughput, while Ryzen 9 7950X3D is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 7950X3D is the better pick here. According to our tests, it delivers 71.4% more average FPS across 13 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 9 7950X3D is the better fit. You are getting 58.7% better Geekbench multi-core, backed by 16 cores and 32 threads.

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

Ryzen 9 7950X3D is the smarter buy today. Ryzen 9 7950X3D is $5,667 cheaper on MSRP at $699 MSRP versus $6,366 MSRP, and it gives you a 71.4% average FPS lead across 13 shared CPU game tests in our data. It is also 591.2% better value on MSRP (89.2 vs 12.9 PassMark/$), 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?

Ryzen 9 7950X3D is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), a healthier platform with AM5 and DDR5 instead of SP3, more multi-core headroom with 16 cores / 32 threads instead of 56/112, and AVX-512 support for heavier modern compute workloads. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

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 7663 Benchmark Check

Ryzen 9 7950X3D Benchmark Check

Path of Exile 2

Preset	EPYC 7663	Ryzen 9 7950X3D
1080p
low	190 FPS	291 FPS
medium	155 FPS	265 FPS
high	123 FPS	219 FPS
ultra	96 FPS	186 FPS
1440p
low	156 FPS	275 FPS
medium	123 FPS	227 FPS
high	94 FPS	177 FPS
ultra	75 FPS	156 FPS
4K
low	72 FPS	190 FPS
medium	60 FPS	156 FPS
high	46 FPS	120 FPS
ultra	38 FPS	107 FPS

Open EPYC 7663 Open Ryzen 9 7950X3D

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 7663	Ryzen 9 7950X3D
1080p
low	238 FPS	734 FPS
medium	211 FPS	627 FPS
high	174 FPS	465 FPS
ultra	138 FPS	393 FPS
1440p
low	195 FPS	602 FPS
medium	177 FPS	536 FPS
high	151 FPS	413 FPS
ultra	116 FPS	326 FPS
4K
low	121 FPS	338 FPS
medium	112 FPS	305 FPS
high	97 FPS	268 FPS
ultra	79 FPS	229 FPS

Open EPYC 7663 Open Ryzen 9 7950X3D

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 7663	Ryzen 9 7950X3D
1080p
low	836 FPS	1025 FPS
medium	696 FPS	1122 FPS
high	649 FPS	1062 FPS
ultra	573 FPS	875 FPS
1440p
low	602 FPS	936 FPS
medium	500 FPS	845 FPS
high	458 FPS	775 FPS
ultra	400 FPS	656 FPS
4K
low	430 FPS	574 FPS
medium	335 FPS	498 FPS
high	300 FPS	447 FPS
ultra	242 FPS	378 FPS

Open EPYC 7663 Open Ryzen 9 7950X3D

League of Legends

League of Legends

Valorant

Preset	EPYC 7663	Ryzen 9 7950X3D
1080p
low	954 FPS	1082 FPS
medium	863 FPS	973 FPS
high	739 FPS	854 FPS
ultra	637 FPS	766 FPS
1440p
low	733 FPS	853 FPS
medium	636 FPS	751 FPS
high	542 FPS	659 FPS
ultra	466 FPS	569 FPS
4K
low	522 FPS	623 FPS
medium	464 FPS	555 FPS
high	406 FPS	493 FPS
ultra	353 FPS	426 FPS

Open EPYC 7663 Open Ryzen 9 7950X3D

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 7663 and Ryzen 9 7950X3D

EPYC 7663

The EPYC 7663 is manufactured by AMD. It was released in 15 March 2021 (4 years ago). It is based on the Milan (2021−2023) architecture. It features 56 cores and 112 threads. Base frequency is 2 GHz, with boost up to 3.5 GHz. L3 cache: 256 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 240 Watt. Memory support: DDR4-3200. Passmark benchmark score: 82,120 points. Launch price was $6,366.

Ryzen 9 7950X3D

The Ryzen 9 7950X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 16 cores and 32 threads. Base frequency is 4.2 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 62,323 points. Launch price was $699.

⚡

Processing Power

The EPYC 7663 packs 56 cores / 112 threads, while the Ryzen 9 7950X3D offers 16 cores / 32 threads — the EPYC 7663 has 40 more cores. Boost clocks reach 3.5 GHz on the EPYC 7663 versus 5.7 GHz on the Ryzen 9 7950X3D — a 47.8% clock advantage for the Ryzen 9 7950X3D (base: 2 GHz vs 4.2 GHz). The EPYC 7663 uses the Milan (2021−2023) architecture (7 nm+), while the Ryzen 9 7950X3D uses Raphael (Zen4) (2022−2023) (5 nm, 6 nm). In PassMark, the EPYC 7663 scores 82,120 against the Ryzen 9 7950X3D's 62,323 — a 27.4% lead for the EPYC 7663. Geekbench 6 single-core — the metric most relevant to gaming — records 1,370 vs 2,926, a 72.4% lead for the Ryzen 9 7950X3D that directly translates to higher frame rates. Multi-core Geekbench: 12,380 vs 19,643 (45.4% advantage for the Ryzen 9 7950X3D). L3 cache: 256 MB (total) on the EPYC 7663 vs 128 MB (total) on the Ryzen 9 7950X3D.

Feature	EPYC 7663	Ryzen 9 7950X3D
Cores / Threads	56 / 112+250%	16 / 32
Boost Clock	3.5 GHz	5.7 GHz+63%
Base Clock	2 GHz	4.2 GHz+110%
L3 Cache	256 MB (total)+100%	128 MB (total)
L2 Cache	512 kB (per core)	1 MB (per core)+100%
Process	7 nm+	5 nm, 6 nm-29%
Architecture	Milan (2021−2023)	Raphael (Zen4) (2022−2023)
PassMark	82,120+32%	62,323
Cinebench R23 Multi	—	38,581
Geekbench 6 Single	1,370	2,926+114%
Geekbench 6 Multi	12,380	19,643+59%

🧠

Memory & Platform

The EPYC 7663 uses the SP3 socket (PCIe 4.0), while the Ryzen 9 7950X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the EPYC 7663 versus DDR5-5200 on the Ryzen 9 7950X3D — the Ryzen 9 7950X3D supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7663 supports up to 4096 GB of RAM compared to 128 GB — 187.9% more capacity for professional workloads. Memory channels: 8 (EPYC 7663) vs 2 (Ryzen 9 7950X3D). PCIe lanes: 128 (EPYC 7663) vs 28 (Ryzen 9 7950X3D) — the EPYC 7663 offers 100 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7663) and AMD X670E,AMD X670,AMD B650E,AMD B650 (Ryzen 9 7950X3D).

Feature	EPYC 7663	Ryzen 9 7950X3D
Socket	SP3	AM5
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	DDR4-3200	DDR5-5200+25%
Max RAM Capacity	4096 GB+3100%	128 GB
RAM Channels	8+300%	2
ECC Support	Yes	Yes
PCIe Lanes	128+357%	28

🔧

Advanced Features

Only the Ryzen 9 7950X3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 9 7950X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (EPYC 7663) vs true (Ryzen 9 7950X3D). The Ryzen 9 7950X3D includes integrated graphics (Radeon Graphics), while the EPYC 7663 requires a dedicated GPU. Primary use case: EPYC 7663 targets Server. Direct competitor: EPYC 7663 rivals Xeon Platinum 8380; Ryzen 9 7950X3D rivals Core i9-13900K.

Feature	EPYC 7663	Ryzen 9 7950X3D
Integrated GPU	No	Yes
IGPU Model	None	Radeon Graphics
Unlocked	No	Yes
AVX-512	No	Yes
Virtualization	AMD-V	true
Target Use	Server	—

💰

Value Analysis

The EPYC 7663 launched at $6366 MSRP, while the Ryzen 9 7950X3D debuted at $699. On MSRP ($6366 vs $699), the Ryzen 9 7950X3D is $5667 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7663 delivers 12.9 pts/$ vs 89.2 pts/$ for the Ryzen 9 7950X3D — making the Ryzen 9 7950X3D the 149.4% better value option.