EPYC 8434P vs EPYC 7543P
EPYC 8434P
EPYC 7543P
Performance Spectrum - CPU
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar EPYC 8434P
Performance Per Dollar EPYC 7543P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 8434P | EPYC 7543P |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($3,137) | ✅ More affordable ($115) |
| Longevity | ✨ Modern (Siena (2023−2024) / 5 nm) | ✨ Modern (Milan (2021−2023) / 7 nm+) |
💎 Value Proposition
| Insight | EPYC 8434P | EPYC 7543P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+2632%) |
| Upfront Cost | ⚠️ Higher cost ($3,137) | ✅ More affordable ($115) |
Performance Check
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.
Technical Specifications
Side-by-side comparison of EPYC 8434P and EPYC 7543P
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.
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.
Processing Power
The EPYC 8434P packs 48 cores / 96 threads, while the EPYC 7543P offers 32 cores / 64 threads — the EPYC 8434P has 16 more cores. Boost clocks reach 3.1 GHz on the EPYC 8434P versus 3.7 GHz on the EPYC 7543P — a 17.6% clock advantage for the EPYC 7543P (base: 2.5 GHz vs 2.8 GHz). The EPYC 8434P uses the Siena (2023−2024) architecture (5 nm), while the EPYC 7543P uses Milan (2021−2023) (7 nm+). In PassMark, the EPYC 8434P scores 66,490 against the EPYC 7543P's 66,590 — a 0.2% lead for the EPYC 7543P. L3 cache: 128 MB (total) on the EPYC 8434P vs 256 MB (total) on the EPYC 7543P.
| Feature | EPYC 8434P | EPYC 7543P |
|---|---|---|
| Cores / Threads | 48 / 96+50% | 32 / 64 |
| Boost Clock | 3.1 GHz | 3.7 GHz+19% |
| Base Clock | 2.5 GHz | 2.8 GHz+12% |
| L3 Cache | 128 MB (total) | 256 MB (total)+100% |
| L2 Cache | 1 MB (per core)+100% | 512 kB (per core) |
| Process | 5 nm-29% | 7 nm+ |
| Architecture | Siena (2023−2024) | Milan (2021−2023) |
| PassMark | 66,490 | 66,590 |
Memory & Platform
The EPYC 8434P uses the SP6 socket (PCIe 4.0), while the EPYC 7543P uses SP3 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the EPYC 8434P versus 3200 on the EPYC 7543P — 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: 6 (EPYC 8434P) vs 8 (EPYC 7543P). PCIe lanes: 96 (EPYC 8434P) vs 128 (EPYC 7543P) — the EPYC 7543P offers 32 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP6 (EPYC 8434P) and SP3 (EPYC 7543P).
| Feature | EPYC 8434P | EPYC 7543P |
|---|---|---|
| Socket | SP6 | SP3 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 4800+50% | 3200 |
| Max RAM Capacity | 1152 | 4096+256% |
| RAM Channels | 6 | 8+33% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 96 | 128+33% |
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 8434P rivals Xeon Platinum 8452Y; EPYC 7543P rivals Xeon Platinum 8380.
| Feature | EPYC 8434P | EPYC 7543P |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | Yes | No |
| Virtualization | VT-x, VT-d | VT-x, VT-d |
Value Analysis
The EPYC 8434P launched at $1517 MSRP, while the EPYC 7543P debuted at $2730. At current prices ($3137 vs $115), the EPYC 7543P is $3022 cheaper. In terms of value (PassMark points per dollar), the EPYC 8434P delivers 21.2 pts/$ vs 579.0 pts/$ for the EPYC 7543P — making the EPYC 7543P the 185.9% better value option.
| Feature | EPYC 8434P | EPYC 7543P |
|---|---|---|
| MSRP | $1517-44% | $2730 |
| Avg Price (30d) | $3137 | $115-96% |
| Performance per Dollar | 21.2 | 579.0+2631% |
| Release Date | 2023 | 2021 |
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