EPYC 7643P vs Xeon 6740E

CPU

GPU

EPYC 7643P

48 Cores96 Thrd225 WWMax: 3.6 GHz2023

EPYC family

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Xeon 6740E

96 Cores96 Thrd250 WWMax: 3.2 GHz2024

Similar parts

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EPYC 7643P vs Xeon 6740E Performance Spectrum

EPYC 7643P

48 / 96

77,307

+1.5%

Ryzen AI Max PRO 390

Ryzen 9 9850HX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper PRO 9955WX

Ryzen Threadripper 9960X

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 7985WX

Ryzen Threadripper 7980X

Xeon 6740E

96 / 96

76,167

0.0%

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 7643P vs Xeon 6740E 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 7643P vs Xeon 6740E: Pros, Cons & Final Verdict

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

EPYC 7643P

2023

Why buy it

✅+166.7% larger total L3 cache (256 MB vs 96 MB).
✅Costs $2,543 less on MSRP ($2,722 MSRP vs $5,265 MSRP).
✅Delivers 96.3% more PassMark for each dollar spent, at 28.4 vs 14.5 PassMark/$ ($2,722 MSRP vs $5,265 MSRP).
✅Draws 225W instead of 250W, a 25W reduction.
✅60% more PCIe lanes (128 vs 80) for storage and expansion-heavy builds.

Trade-offs

❌Older platform position on SP3 with DDR4, while Xeon 6740E moves to LGA4710 and DDR5.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon 6740E

2024

Why buy it

✅Newer platform on LGA4710 with DDR5 support instead of SP3 and DDR4.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Lower PassMark (76,167 vs 77,307).
❌Smaller total L3 cache (96 MB vs 256 MB).
❌Lower PassMark per dollar, at 14.5 vs 28.4 PassMark/$ ($5,265 MSRP vs $2,722 MSRP).

Quick Answers

So, is EPYC 7643P better than Xeon 6740E?

Yes. EPYC 7643P is the better all-around CPU here. It gives you a 0.6% average FPS lead across 50 shared CPU game tests in our data and 1.5% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, EPYC 7643P is the better pick. According to our tests, it delivers 0.6% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, EPYC 7643P is the stronger fit. You are getting 1.5% better PassMark, backed by 48 cores and 96 threads. It also has the larger cache pool with 166.7% larger total L3 cache (256 MB vs 96 MB).

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

EPYC 7643P is the better buy right now. EPYC 7643P comes in $2,543 cheaper on MSRP at $2,722 MSRP versus $5,265 MSRP, and it still gives you a 0.6% average FPS lead across 50 shared CPU game tests in our data. It is also 96.3% better value on MSRP (28.4 vs 14.5 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Xeon 6740E makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2023), a healthier platform with LGA4710 and DDR5 instead of SP3, and AVX-512 support for heavier modern compute workloads. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 7643P vs Xeon 6740E Technical Specifications

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

EPYC 7643P

The EPYC 7643P is manufactured by AMD. It was released in 5 September 2023 (2 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. Passmark benchmark score: 77,307 points. Launch price was $2,722.

Xeon 6740E

The Xeon 6740E is manufactured by Intel. It was released in 3 June 2024 (1 year ago). It is based on the Sierra Forest (2024) architecture. It features 96 cores and 96 threads. Base frequency is 2.4 GHz, with boost up to 3.2 GHz. L3 cache: 96 MB (total). L2 cache: 4 MB (per module). Built on Intel 3 nm process technology. Socket: LGA4710. Thermal design power (TDP): 250 Watt. Memory support: DDR5-6400. Passmark benchmark score: 76,167 points. Launch price was $5,265.

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Processing Power

The EPYC 7643P packs 48 cores / 96 threads, while the Xeon 6740E offers 96 cores / 96 threads — the Xeon 6740E has 48 more cores. Boost clocks reach 3.6 GHz on the EPYC 7643P versus 3.2 GHz on the Xeon 6740E — a 11.8% clock advantage for the EPYC 7643P (base: 2.3 GHz vs 2.4 GHz). The EPYC 7643P uses the Milan (2021−2023) architecture (7 nm), while the Xeon 6740E uses Sierra Forest (2024) (Intel 3 nm). In PassMark, the EPYC 7643P scores 77,307 against the Xeon 6740E's 76,167 — a 1.5% lead for the EPYC 7643P. L3 cache: 256 MB (total) on the EPYC 7643P vs 96 MB (total) on the Xeon 6740E.

Feature	EPYC 7643P	Xeon 6740E
Cores / Threads	48 / 96	96 / 96+100%
Boost Clock	3.6 GHz+12%	3.2 GHz
Base Clock	2.3 GHz	2.4 GHz+4%
L3 Cache	256 MB (total)+167%	96 MB (total)
L2 Cache	512 kB (per core)	4 MB (per module)+700%
Process	7 nm	Intel 3 nm-57%
Architecture	Milan (2021−2023)	Sierra Forest (2024)
PassMark	77,307+1%	76,167

🧠

Memory & Platform

The EPYC 7643P uses the SP3 socket (PCIe 4.0), while the Xeon 6740E uses LGA4710 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7643P versus 6400 on the Xeon 6740E — the Xeon 6740E supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 4096 of RAM. Both feature 8-channel memory with ECC support. PCIe lanes: 128 (EPYC 7643P) vs 80 (Xeon 6740E) — the EPYC 7643P offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7643P) and C741 (Xeon 6740E).

Feature	EPYC 7643P	Xeon 6740E
Socket	SP3	LGA4710
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	3200	6400+100%
Max RAM Capacity	4096	4096
RAM Channels	8	8
ECC Support	Yes	Yes
PCIe Lanes	128+60%	80

🔧

Advanced Features

Neither processor supports overclocking. Only the Xeon 6740E supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, SEV (EPYC 7643P) vs VT-x, VT-d, TDX (Xeon 6740E). Direct competitor: EPYC 7643P rivals Xeon Platinum 8380; Xeon 6740E rivals EPYC 9005.

Feature	EPYC 7643P	Xeon 6740E
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	No
AVX-512	No	Yes
Virtualization	VT-x, VT-d, SEV	VT-x, VT-d, TDX

💰

Value Analysis

At launch, the EPYC 7643P was priced at $2722, while the Xeon 6740E came in at $5265. On launch pricing ($2722 vs $5265), EPYC 7643P was $2543 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7643P delivers 28.4 pts/$ vs 14.5 pts/$ for the Xeon 6740E — making the EPYC 7643P the 65% better value option.

Feature	EPYC 7643P	Xeon 6740E
MSRP	$2722-48%	$5265
Performance per Dollar	28.4+96%	14.5
Release Date	2023	2024

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