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EPYC 7643 vs EPYC 9384X

CPUCPUGPUGPU
AMD

EPYC 7643

48 Cores96 Thrd225 WWMax: 3.6 GHz2021
EPYC family
·······
Buy on Amazon
VS
AMD

EPYC 9384X

32 Cores64 Thrd320 WWMax: 3.9 GHz2023
EPYC family
·······
Buy on Amazon

EPYC 7643 vs EPYC 9384X Performance Spectrum

EPYC 7643
48 / 96
76,050
+5.4%
brand logoRyzen 7 8840HX
brand logoRyzen 9 7900X3D
brand logoRyzen 9 7945HX3D
brand logoRyzen Threadripper PRO 9955WX
brand logoRyzen Threadripper 9960X
brand logoRyzen Threadripper 7970X
brand logoRyzen Threadripper PRO 7985WX
brand logoRyzen Threadripper 7980X
EPYC 9384X
32 / 64
72,121
0.0%
brand logoRyzen Threadripper PRO 5945WX
brand logoRyzen 9 7900
brand logoRyzen 9 9955HX
brand logoRyzen Threadripper 3970X
brand logoRyzen Threadripper 9960X
brand logoRyzen Threadripper PRO 7975WX
brand logoRyzen Threadripper 9970X
brand logoRyzen Threadripper PRO 7985WX

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 7643 vs EPYC 9384X 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.

Path of Exile 2

Path of Exile 2

1080P
EPYC 7643
low195 FPS
medium159 FPS
high129 FPS
ultra100 FPS
1080P
EPYC 9384X
low171 FPS
medium141 FPS
high120 FPS
ultra95 FPS
Counter-Strike 2

Counter-Strike 2

1080P
EPYC 7643
low418 FPS
medium367 FPS
high299 FPS
ultra234 FPS
1080P
EPYC 9384X
low507 FPS
medium443 FPS
high355 FPS
ultra288 FPS
League of Legends

League of Legends

1080P
EPYC 7643
low837 FPS
medium698 FPS
high650 FPS
ultra574 FPS
1080P
EPYC 9384X
low670 FPS
medium559 FPS
high521 FPS
ultra453 FPS
Valorant

Valorant

1080P
EPYC 7643
low977 FPS
medium887 FPS
high764 FPS
ultra660 FPS
1080P
EPYC 9384X
low904 FPS
medium822 FPS
high708 FPS
ultra625 FPS
Among Us

Among Us

1080P
EPYC 7643
low60 FPS
medium60 FPS
high60 FPS
ultra60 FPS
1080P
EPYC 9384X
low60 FPS
medium60 FPS
high60 FPS
ultra60 FPS
Apex Legends

Apex Legends

1080P
EPYC 7643
low300 FPS
medium300 FPS
high300 FPS
ultra300 FPS
1080P
EPYC 9384X
low300 FPS
medium300 FPS
high300 FPS
ultra300 FPS
ARC Raiders

ARC Raiders

1080P
EPYC 7643
low300 FPS
medium229 FPS
high207 FPS
ultra186 FPS
1080P
EPYC 9384X
low300 FPS
medium229 FPS
high207 FPS
ultra186 FPS
Baldur's Gate 3

Baldur's Gate 3

1080P
EPYC 7643
low249 FPS
medium221 FPS
high174 FPS
ultra138 FPS
1080P
EPYC 9384X
low252 FPS
medium223 FPS
high175 FPS
ultra142 FPS
Call of Duty: Black Ops 6

Call of Duty: Black Ops 6

1080P
EPYC 7643
low308 FPS
medium278 FPS
high258 FPS
ultra212 FPS
1080P
EPYC 9384X
low323 FPS
medium289 FPS
high268 FPS
ultra231 FPS
Call of Duty: Warzone

Call of Duty: Warzone

1080P
EPYC 7643
low234 FPS
medium206 FPS
high173 FPS
ultra161 FPS
1080P
EPYC 9384X
low234 FPS
medium206 FPS
high173 FPS
ultra161 FPS
Check FPS with Custom Builds

EPYC 7643 vs EPYC 9384X: Pros, Cons & Final Verdict

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

EPYC 7643

2021

Why buy it

  • ✅+5.4% higher PassMark.
  • ✅Costs $534 less on MSRP ($4,995 MSRP vs $5,529 MSRP).
  • ✅Delivers 16.7% more PassMark for each dollar spent, at 15.2 vs 13.0 PassMark/$ ($4,995 MSRP vs $5,529 MSRP).
  • ✅Draws 225W instead of 320W, a 95W reduction.

Trade-offs

  • ❌Smaller total L3 cache (256 MB vs 768 MB).
  • ❌Older platform position on SP3 with DDR4, while EPYC 9384X moves to SP5 and DDR5.
  • ❌No AVX-512 support for niche heavy compute workloads where it can matter.

EPYC 9384X

2023

Why buy it

  • ✅+200% larger total L3 cache (768 MB vs 256 MB).
  • ✅Newer platform on SP5 with DDR5 support instead of SP3 and DDR4.
  • ✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

  • ❌Lower PassMark (72,121 vs 76,050).
  • ❌Lower PassMark per dollar, at 13.0 vs 15.2 PassMark/$ ($5,529 MSRP vs $4,995 MSRP).
  • ❌42.2% higher power demand at 320W vs 225W.

Quick Answers

So, is EPYC 7643 better than EPYC 9384X?
It depends on what you want from the system. For gaming, EPYC 9384X is ahead with a 1.9% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, EPYC 7643 pulls ahead with 5.4% better PassMark. EPYC 9384X also has the bigger cache pool with 200% larger total L3 cache (768 MB vs 256 MB).
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, EPYC 7643 is the stronger fit. You are getting 5.4% better PassMark, backed by 48 cores and 96 threads.
Which one is the smarter buy today, not just the cheaper CPU?
EPYC 7643 is the better buy right now. EPYC 7643 comes in $534 cheaper on MSRP at $4,995 MSRP versus $5,529 MSRP, and it still gives you 5.4% better PassMark. The compromise is that EPYC 9384X is still the better pure gaming CPU with a 1.9% average FPS lead across 50 shared CPU game tests in our data. It is also 16.7% better value on MSRP (15.2 vs 13.0 PassMark/$), 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 9384X makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), a healthier platform with SP5 and DDR5 instead of SP3, 200% larger total L3 cache (768 MB vs 256 MB), and AVX-512 support for heavier modern compute workloads. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 7643 vs EPYC 9384X Technical Specifications

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

AMD

EPYC 7643

The EPYC 7643 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 48 cores and 96 threads. Base frequency is 2.3 GHz, with boost up to 3.6 GHz. L3 cache: 256 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 225 Watt. Memory support: DDR4-3200. Passmark benchmark score: 76,050 points. Launch price was $4,995.

AMD

EPYC 9384X

The EPYC 9384X is manufactured by AMD. It was released in 13 June 2023 (2 years ago). It is based on the Genoa-X (2023) architecture. It features 32 cores and 64 threads. Base frequency is 3.1 GHz, with boost up to 3.9 GHz. L3 cache: 768 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: SP5. Thermal design power (TDP): 320 Watt. Memory support: DDR5. Passmark benchmark score: 72,121 points. Launch price was $5,529.

⚡

Processing Power

The EPYC 7643 packs 48 cores / 96 threads, while the EPYC 9384X offers 32 cores / 64 threads — the EPYC 7643 has 16 more cores. Boost clocks reach 3.6 GHz on the EPYC 7643 versus 3.9 GHz on the EPYC 9384X — a 8% clock advantage for the EPYC 9384X (base: 2.3 GHz vs 3.1 GHz). The EPYC 7643 uses the Milan (2021−2023) architecture (7 nm+), while the EPYC 9384X uses Genoa-X (2023) (5 nm). In PassMark, the EPYC 7643 scores 76,050 against the EPYC 9384X's 72,121 — a 5.3% lead for the EPYC 7643. L3 cache: 256 MB (total) on the EPYC 7643 vs 768 MB (total) on the EPYC 9384X.

FeatureEPYC 7643EPYC 9384X
Cores / Threads
48 / 96+50%
32 / 64
Boost Clock
3.6 GHz
3.9 GHz+8%
Base Clock
2.3 GHz
3.1 GHz+35%
L3 Cache
256 MB (total)
768 MB (total)+200%
L2 Cache
512 kB (per core)
1 MB (per core)+100%
Process
7 nm+
5 nm-29%
Architecture
Milan (2021−2023)
Genoa-X (2023)
PassMark
76,050+5%
72,121
Geekbench 6 Single
1,671
—
Geekbench 6 Multi
15,000
—
🧠

Memory & Platform

The EPYC 7643 uses the SP3 socket (PCIe 4.0), while the EPYC 9384X uses SP5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the EPYC 7643 versus 4800 on the EPYC 9384X — the EPYC 9384X supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 9384X supports up to 6144 TB of RAM compared to 4 TB — 153500% more capacity for professional workloads. Memory channels: 8 (EPYC 7643) vs 12 (EPYC 9384X). Both provide 128 PCIe lanes. Chipset compatibility: SP3 (EPYC 7643) and SP5 (EPYC 9384X).

FeatureEPYC 7643EPYC 9384X
Socket
SP3
SP5
PCIe Generation
PCIe 4.0
PCIe 5.0+25%
Max RAM Speed
DDR4-3200
4800+50%
Max RAM Capacity
4 TB
6144 TB+153500%
RAM Channels
8
12+50%
ECC Support
Yes
Yes
PCIe Lanes
128
128
🔧

Advanced Features

Neither processor supports overclocking. Only the EPYC 9384X supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (EPYC 7643) vs VT-x, VT-d, SEV-SNP (EPYC 9384X). Primary use case: EPYC 7643 targets Server. Direct competitor: EPYC 7643 rivals EPYC 7443P; EPYC 9384X rivals Xeon Platinum 8468.

FeatureEPYC 7643EPYC 9384X
Integrated GPU
No
No
IGPU Model
None
None
Unlocked
No
No
AVX-512
No
Yes
Virtualization
AMD-V
VT-x, VT-d, SEV-SNP
Target Use
Server
—
💰

Value Analysis

At launch, the EPYC 7643 was priced at $4995, while the EPYC 9384X came in at $5529. On launch pricing ($4995 vs $5529), EPYC 7643 was $534 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7643 delivers 15.2 pts/$ vs 13.0 pts/$ for the EPYC 9384X — making the EPYC 7643 the 15.4% better value option.

FeatureEPYC 7643EPYC 9384X
MSRP
$4995-10%
$5529
Performance per Dollar
15.2+17%
13.0
Release Date
2021
2023
Search EPYC 7643 on AmazonSearch EPYC 9384X on Amazon

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