Ryzen 9 7900
Xeon w5-2555X
Ryzen 9 7900 vs Xeon w5-2555X Performance Spectrum
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.
Ryzen 9 7900 vs Xeon w5-2555X 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
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Ryzen 9 7900 vs Xeon w5-2555X: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
Ryzen 9 7900
2023Why buy it
- ✅Better for gaming: +8.4% higher average FPS across 50 shared CPU benchmark tests.
- ✅+89.6% larger total L3 cache (64 MB vs 34 MB).
- ✅Costs $640 less on MSRP ($429 MSRP vs $1,069 MSRP).
- ✅Delivers 152.0% more PassMark for each dollar spent, at 112.3 vs 44.6 PassMark/$ ($429 MSRP vs $1,069 MSRP).
- ✅Draws 65W instead of 252W, a 187W reduction.
Trade-offs
- ❌Less compelling for workstation-style loads than Xeon w5-2555X, which brings 14 cores / 28 threads and 112 PCIe lanes.
Xeon w5-2555X
2024Why buy it
- ✅Better for workstations and heavier parallel workloads: 14 cores / 28 threads, plus 112 PCIe lanes vs 28.
- ✅300% more PCIe lanes (112 vs 28) for storage and expansion-heavy builds.
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen 9 7900 across 50 shared CPU benchmark tests.
- ❌Lower PassMark (47,638 vs 48,168).
- ❌Smaller total L3 cache (34 MB vs 64 MB).
- ❌Lower PassMark per dollar, at 44.6 vs 112.3 PassMark/$ ($1,069 MSRP vs $429 MSRP).
- ❌287.7% higher power demand at 252W vs 65W.
Quick Answers
So, is Ryzen 9 7900 better than Xeon w5-2555X?
Which one is better for gaming?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Ryzen 9 7900 vs Xeon w5-2555X Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Ryzen 9 7900
The Ryzen 9 7900 is manufactured by AMD. It was released in 14 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5-5200. Passmark benchmark score: 48,168 points. Launch price was $429.
Xeon w5-2555X
The Xeon w5-2555X is manufactured by Intel. It was released in 2015-01-01. It features 14 cores and 28 threads. Base frequency is 3.3 GHz, with boost up to 4.8 GHz. L3 cache: 33.75 MB Intel® Smart Cache. Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 252 Watt. Memory support: DDR5-4800. Passmark benchmark score: 47,638 points. Launch price was $800.
Processing Power
The Ryzen 9 7900 packs 12 cores / 24 threads, while the Xeon w5-2555X offers 14 cores / 28 threads — the Xeon w5-2555X has 2 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 7900 versus 4.8 GHz on the Xeon w5-2555X — a 11.8% clock advantage for the Ryzen 9 7900 (base: 3.7 GHz vs 3.3 GHz). The Ryzen 9 7900 is built on the Raphael (Zen4) (2022−2023) architecture. In PassMark, the Ryzen 9 7900 scores 48,168 against the Xeon w5-2555X's 47,638 — a 1.1% lead for the Ryzen 9 7900. L3 cache: 64 MB (total) on the Ryzen 9 7900 vs 33.75 MB Intel® Smart Cache on the Xeon w5-2555X.
| Feature | Ryzen 9 7900 | Xeon w5-2555X |
|---|---|---|
| Cores / Threads | 12 / 24 | 14 / 28+17% |
| Boost Clock | 5.4 GHz+13% | 4.8 GHz |
| Base Clock | 3.7 GHz+12% | 3.3 GHz |
| L3 Cache | 64 MB (total)+90% | 33.75 MB Intel® Smart Cache |
| L2 Cache | 1 MB (per core) | — |
| Process | 5 nm-29% | Intel 7 nm |
| Architecture | Raphael (Zen4) (2022−2023) | — |
| PassMark | 48,168+1% | 47,638 |
| Cinebench R23 Multi | 24,600 | — |
| Geekbench 6 Single | 2,800 | — |
| Geekbench 6 Multi | 18,000 | — |
Memory & Platform
The Ryzen 9 7900 uses the AM5 socket (PCIe 5.0), while the Xeon w5-2555X uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Ryzen 9 7900 versus 4800 on the Xeon w5-2555X — the Ryzen 9 7900 supports 8.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon w5-2555X supports up to 4096 GB of RAM compared to 128 GB — 3100% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 7900) vs 8 (Xeon w5-2555X). PCIe lanes: 28 (Ryzen 9 7900) vs 112 (Xeon w5-2555X) — the Xeon w5-2555X offers 84 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD X670E,AMD X670,AMD B650E,AMD B650,AMD A620 (Ryzen 9 7900) and W790 (Xeon w5-2555X).
| Feature | Ryzen 9 7900 | Xeon w5-2555X |
|---|---|---|
| Socket | AM5 | LGA4677 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-5200+8% | 4800 |
| Max RAM Capacity | 128 GB | 4096 GB+3100% |
| RAM Channels | 2 | 8+300% |
| ECC Support | Yes | Yes |
| PCIe Lanes | 28 | 112+300% |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: true (Ryzen 9 7900) vs VT-x, VT-d (Xeon w5-2555X). The Ryzen 9 7900 includes integrated graphics (Radeon Graphics (Raphael)), while the Xeon w5-2555X requires a dedicated GPU. Direct competitor: Ryzen 9 7900 rivals Core i9-13900; Xeon w5-2555X rivals Threadripper PRO 7965WX.
| Feature | Ryzen 9 7900 | Xeon w5-2555X |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Radeon Graphics (Raphael) | None |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | true | VT-x, VT-d |
Value Analysis
At launch, the Ryzen 9 7900 was priced at $429, while the Xeon w5-2555X came in at $1069. On launch pricing ($429 vs $1069), Ryzen 9 7900 was $640 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 7900 delivers 112.3 pts/$ vs 44.6 pts/$ for the Xeon w5-2555X — making the Ryzen 9 7900 the 86.3% better value option.
| Feature | Ryzen 9 7900 | Xeon w5-2555X |
|---|---|---|
| MSRP | $429-60% | $1069 |
| Performance per Dollar | 112.3+152% | 44.6 |
| Release Date | 2023 | 2024 |
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