Ryzen 9 9900X3D vs EPYC 7443
Ryzen 9 9900X3D
EPYC 7443
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 Ryzen 9 9900X3D
Performance Per Dollar EPYC 7443
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 9900X3D | EPYC 7443 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($589) | ⚠️ Higher cost ($1,800) |
| Longevity | ✨ Modern (Granite Ridge (2024−2025) / 4 nm) | ✨ Modern (Milan (2021−2023) / 7 nm+) |
💎 Value Proposition
| Insight | Ryzen 9 9900X3D | EPYC 7443 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+203%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($589) | ⚠️ Higher cost ($1,800) |
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 Ryzen 9 9900X3D and EPYC 7443
Ryzen 9 9900X3D
The Ryzen 9 9900X3D is manufactured by AMD. It was released in 6 January 2025 (less than a year ago). It is based on the Granite Ridge (2024−2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.4 GHz, with boost up to 5.5 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5. Passmark benchmark score: 56,301 points. Launch price was $599.
EPYC 7443
The EPYC 7443 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 24 cores and 48 threads. Base frequency is 2.85 GHz, with boost up to 4 GHz. L3 cache: 128 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 200 Watt. Memory support: DDR4-3200. Passmark benchmark score: 56,743 points. Launch price was $2,010.
Processing Power
The Ryzen 9 9900X3D packs 12 cores / 24 threads, while the EPYC 7443 offers 24 cores / 48 threads — the EPYC 7443 has 12 more cores. Boost clocks reach 5.5 GHz on the Ryzen 9 9900X3D versus 4 GHz on the EPYC 7443 — a 31.6% clock advantage for the Ryzen 9 9900X3D (base: 4.4 GHz vs 2.85 GHz). The Ryzen 9 9900X3D uses the Granite Ridge (2024−2025) architecture (4 nm), while the EPYC 7443 uses Milan (2021−2023) (7 nm+). In PassMark, the Ryzen 9 9900X3D scores 56,301 against the EPYC 7443's 56,743 — a 0.8% lead for the EPYC 7443. Both processors carry 128 MB (total) of L3 cache.
| Feature | Ryzen 9 9900X3D | EPYC 7443 |
|---|---|---|
| Cores / Threads | 12 / 24 | 24 / 48+100% |
| Boost Clock | 5.5 GHz+38% | 4 GHz |
| Base Clock | 4.4 GHz+54% | 2.85 GHz |
| L3 Cache | 128 MB (total) | 128 MB (total) |
| L2 Cache | 1 MB (per core)+100% | 512 kB (per core) |
| Process | 4 nm-43% | 7 nm+ |
| Architecture | Granite Ridge (2024−2025) | Milan (2021−2023) |
| PassMark | 56,301 | 56,743 |
| Geekbench 6 Single | 3,400 | — |
| Geekbench 6 Multi | 26,000 | — |
Memory & Platform
The Ryzen 9 9900X3D uses the AM5 socket (PCIe 5.0), while the EPYC 7443 uses SP3 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Ryzen 9 9900X3D versus 3200 on the EPYC 7443 — the EPYC 7443 supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7443 supports up to 4096 of RAM compared to 192 GB — 182.1% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 9900X3D) vs 8 (EPYC 7443). PCIe lanes: 24 (Ryzen 9 9900X3D) vs 128 (EPYC 7443) — the EPYC 7443 offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X670,X670E,X870,X870E (Ryzen 9 9900X3D) and SP3 (EPYC 7443).
| Feature | Ryzen 9 9900X3D | EPYC 7443 |
|---|---|---|
| Socket | AM5 | SP3 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-5600 | 3200+63900% |
| Max RAM Capacity | 192 GB+4915100% | 4096 |
| RAM Channels | 2 | 8+300% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 24 | 128+433% |
Advanced Features
Only the Ryzen 9 9900X3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 9 9900X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 9900X3D) vs VT-x, VT-d (EPYC 7443). The Ryzen 9 9900X3D includes integrated graphics (AMD Radeon Graphics (2 Cores)), while the EPYC 7443 requires a dedicated GPU. Primary use case: Ryzen 9 9900X3D targets High End Gaming/Creation. Direct competitor: Ryzen 9 9900X3D rivals Core Ultra 9 285K; EPYC 7443 rivals Xeon Platinum 8362.
| Feature | Ryzen 9 9900X3D | EPYC 7443 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | AMD Radeon Graphics (2 Cores) | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | No |
| Virtualization | AMD-V | VT-x, VT-d |
| Target Use | High End Gaming/Creation | — |
Value Analysis
The Ryzen 9 9900X3D launched at $599 MSRP, while the EPYC 7443 debuted at $2010. At current prices ($589 vs $1800), the Ryzen 9 9900X3D is $1211 cheaper. In terms of value (PassMark points per dollar), the Ryzen 9 9900X3D delivers 95.6 pts/$ vs 31.5 pts/$ for the EPYC 7443 — making the Ryzen 9 9900X3D the 100.8% better value option.
| Feature | Ryzen 9 9900X3D | EPYC 7443 |
|---|---|---|
| MSRP | $599-70% | $2010 |
| Avg Price (30d) | $589-67% | $1800 |
| Performance per Dollar | 95.6+203% | 31.5 |
| Release Date | 2025 | 2021 |
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