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 7543P

2021

Why buy it

✅+100% larger total L3 cache (256 MB vs 128 MB).
✅33.3% more PCIe lanes (128 vs 96) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 24.4 vs 43.8 PassMark/$ ($2,730 MSRP vs $1,517 MSRP).
❌Older platform position on SP3 with DDR4, while EPYC 8434P moves to SP6 and DDR5.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

EPYC 8434P

2023

Why buy it

✅Costs $1,213 less on MSRP ($1,517 MSRP vs $2,730 MSRP).
✅Delivers 79.7% more PassMark for each dollar spent, at 43.8 vs 24.4 PassMark/$ ($1,517 MSRP vs $2,730 MSRP).
✅Draws 200W instead of 225W, a 25W reduction.
✅Newer platform on SP6 with DDR5 support instead of SP3 and DDR4.

Trade-offs

❌Lower PassMark (66,490 vs 66,590).
❌Smaller total L3 cache (128 MB vs 256 MB).

EPYC 7543P

2021

EPYC 8434P

2023

Why buy it

✅+100% larger total L3 cache (256 MB vs 128 MB).
✅33.3% more PCIe lanes (128 vs 96) for storage and expansion-heavy builds.

Why buy it

✅Costs $1,213 less on MSRP ($1,517 MSRP vs $2,730 MSRP).
✅Delivers 79.7% more PassMark for each dollar spent, at 43.8 vs 24.4 PassMark/$ ($1,517 MSRP vs $2,730 MSRP).
✅Draws 200W instead of 225W, a 25W reduction.
✅Newer platform on SP6 with DDR5 support instead of SP3 and DDR4.

Trade-offs

❌Lower PassMark per dollar, at 24.4 vs 43.8 PassMark/$ ($2,730 MSRP vs $1,517 MSRP).
❌Older platform position on SP3 with DDR4, while EPYC 8434P moves to SP6 and DDR5.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Trade-offs

❌Lower PassMark (66,490 vs 66,590).
❌Smaller total L3 cache (128 MB vs 256 MB).

Quick Answers

So, is EPYC 7543P better than EPYC 8434P?

Yes. EPYC 7543P is the better overall CPU here. You are getting a 1.0% average FPS lead across 4 shared CPU game tests in our data and 0.2% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, EPYC 7543P is the better pick here. According to our tests, it delivers 1.0% more average FPS across 4 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, EPYC 7543P is the better fit. You are getting 0.2% better PassMark, backed by 32 cores and 64 threads. It also carries the larger cache pool with 100% larger total L3 cache (256 MB vs 128 MB).

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

EPYC 7543P is still the faster CPU overall, but EPYC 8434P makes more sense if price matters more than absolute performance. EPYC 7543P is 80.0% more expensive on MSRP at $2,730 MSRP versus $1,517 MSRP, and it gives you a 1.0% average FPS lead across 4 shared CPU game tests in our data. EPYC 8434P is also 79.7% better value on MSRP (43.8 vs 24.4 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

EPYC 8434P is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), a healthier platform with SP6 and DDR5 instead of SP3, 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 7543P Benchmark Check

EPYC 8434P Benchmark Check

Path of Exile 2

Preset	EPYC 7543P	EPYC 8434P
1080p
low	198 FPS	159 FPS
medium	161 FPS	131 FPS
high	129 FPS	110 FPS
ultra	100 FPS	87 FPS
1440p
low	161 FPS	142 FPS
medium	126 FPS	114 FPS
high	98 FPS	90 FPS
ultra	78 FPS	72 FPS
4K
low	73 FPS	68 FPS
medium	61 FPS	58 FPS
high	47 FPS	45 FPS
ultra	39 FPS	37 FPS

Open EPYC 7543P Open EPYC 8434P

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 7543P	EPYC 8434P
1080p
low	507 FPS	419 FPS
medium	443 FPS	369 FPS
high	354 FPS	300 FPS
ultra	288 FPS	236 FPS
1440p
low	417 FPS	344 FPS
medium	373 FPS	311 FPS
high	308 FPS	260 FPS
ultra	243 FPS	199 FPS
4K
low	257 FPS	212 FPS
medium	234 FPS	195 FPS
high	205 FPS	163 FPS
ultra	171 FPS	132 FPS

Open EPYC 7543P Open EPYC 8434P

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 7543P	EPYC 8434P
1080p
low	850 FPS	860 FPS
medium	705 FPS	786 FPS
high	657 FPS	760 FPS
ultra	580 FPS	682 FPS
1440p
low	612 FPS	663 FPS
medium	506 FPS	587 FPS
high	464 FPS	558 FPS
ultra	405 FPS	498 FPS
4K
low	437 FPS	435 FPS
medium	339 FPS	344 FPS
high	303 FPS	307 FPS
ultra	245 FPS	250 FPS

Open EPYC 7543P Open EPYC 8434P

League of Legends

League of Legends

Valorant

Preset	EPYC 7543P	EPYC 8434P
1080p
low	992 FPS	1023 FPS
medium	900 FPS	913 FPS
high	775 FPS	772 FPS
ultra	671 FPS	651 FPS
1440p
low	763 FPS	833 FPS
medium	665 FPS	712 FPS
high	569 FPS	598 FPS
ultra	490 FPS	492 FPS
4K
low	547 FPS	600 FPS
medium	488 FPS	524 FPS
high	428 FPS	451 FPS
ultra	370 FPS	376 FPS

Open EPYC 7543P Open EPYC 8434P

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 7543P and EPYC 8434P

EPYC 7543P

The EPYC 7543P 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 32 cores and 64 threads. Base frequency is 2.8 GHz, with boost up to 3.7 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: 66,590 points. Launch price was $2,730.

EPYC 8434P

The EPYC 8434P is manufactured by AMD. It was released in 18 September 2023 (2 years ago). It is based on the Siena (2023−2024) architecture. It features 48 cores and 96 threads. Base frequency is 2.5 GHz, with boost up to 3.1 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: SP6. Thermal design power (TDP): 200 Watt. Memory support: DDR5. Passmark benchmark score: 66,490 points. Launch price was $2,700.

⚡

Processing Power

The EPYC 7543P packs 32 cores / 64 threads, while the EPYC 8434P offers 48 cores / 96 threads — the EPYC 8434P has 16 more cores. Boost clocks reach 3.7 GHz on the EPYC 7543P versus 3.1 GHz on the EPYC 8434P — a 17.6% clock advantage for the EPYC 7543P (base: 2.8 GHz vs 2.5 GHz). The EPYC 7543P uses the Milan (2021−2023) architecture (7 nm+), while the EPYC 8434P uses Siena (2023−2024) (5 nm). In PassMark, the EPYC 7543P scores 66,590 against the EPYC 8434P's 66,490 — a 0.2% lead for the EPYC 7543P. L3 cache: 256 MB (total) on the EPYC 7543P vs 128 MB (total) on the EPYC 8434P.

Feature	EPYC 7543P	EPYC 8434P
Cores / Threads	32 / 64	48 / 96+50%
Boost Clock	3.7 GHz+19%	3.1 GHz
Base Clock	2.8 GHz+12%	2.5 GHz
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-29%
Architecture	Milan (2021−2023)	Siena (2023−2024)
PassMark	66,590	66,490

🧠

Memory & Platform

The EPYC 7543P uses the SP3 socket (PCIe 4.0), while the EPYC 8434P uses SP6 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7543P versus 4800 on the EPYC 8434P — the EPYC 8434P supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7543P supports up to 4096 of RAM compared to 1152 — 112.2% more capacity for professional workloads. Memory channels: 8 (EPYC 7543P) vs 6 (EPYC 8434P). PCIe lanes: 128 (EPYC 7543P) vs 96 (EPYC 8434P) — the EPYC 7543P offers 32 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7543P) and SP6 (EPYC 8434P).

Feature	EPYC 7543P	EPYC 8434P
Socket	SP3	SP6
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	3200	4800+50%
Max RAM Capacity	4096+256%	1152
RAM Channels	8+33%	6
ECC Support	Yes	Yes
PCIe Lanes	128+33%	96

🔧

Advanced Features

Neither processor supports overclocking. Only the EPYC 8434P supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. Direct competitor: EPYC 7543P rivals Xeon Platinum 8380; EPYC 8434P rivals Xeon Platinum 8452Y.

Feature	EPYC 7543P	EPYC 8434P
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	No
AVX-512	No	Yes
Virtualization	VT-x, VT-d	VT-x, VT-d

💰

Value Analysis

The EPYC 7543P launched at $2730 MSRP, while the EPYC 8434P debuted at $1517. On MSRP ($2730 vs $1517), the EPYC 8434P is $1213 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7543P delivers 24.4 pts/$ vs 43.8 pts/$ for the EPYC 8434P — making the EPYC 8434P the 57% better value option.