Ryzen 9 7900 vs Xeon W-3345

AMD

Ryzen 9 7900

12 Cores24 Thrd65 WWMax: 5.4 GHz2023
Ryzen family
·······
VS
Intel

Xeon W-3345

24 Cores48 Thrd250 WWMax: 4 GHz2021
Similar parts
·······

Ryzen 9 7900 vs Xeon W-3345 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 W-3345 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.

Ryzen 9 7900 vs Xeon W-3345: 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

2023

Why buy it

  • Better for gaming: +19.9% higher average FPS across 50 shared CPU benchmark tests.
  • +77.8% larger total L3 cache (64 MB vs 36 MB).
  • Costs $2,070 less on MSRP ($429 MSRP vs $2,499 MSRP).
  • Delivers 482.9% more PassMark for each dollar spent, at 112.3 vs 19.3 PassMark/$ ($429 MSRP vs $2,499 MSRP).
  • Draws 65W instead of 250W, a 185W reduction.

Trade-offs

  • Less compelling for workstation-style loads than Xeon W-3345, which brings 24 cores / 48 threads and 128 PCIe lanes.

Xeon W-3345

2021

Why buy it

  • Better for workstations and heavier parallel workloads: 24 cores / 48 threads, plus 128 PCIe lanes vs 28.
  • 357.1% more PCIe lanes (128 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 (48,140 vs 48,168).
  • Smaller total L3 cache (36 MB vs 64 MB).
  • Lower PassMark per dollar, at 19.3 vs 112.3 PassMark/$ ($2,499 MSRP vs $429 MSRP).
  • 284.6% higher power demand at 250W vs 65W.

Quick Answers

So, is Ryzen 9 7900 better than Xeon W-3345?
Not really, because they are built for different jobs. Xeon W-3345 makes more sense for workstation-style multi-core throughput, while Ryzen 9 7900 is the more practical desktop choice for gaming, platform cost, and everyday use.
Which one is better for gaming?
If gaming is the priority, Ryzen 9 7900 is the better pick. According to our tests, it delivers 19.9% 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, Ryzen 9 7900 is the stronger fit. You are getting 0.1% better PassMark, backed by 12 cores and 24 threads. It also has the larger cache pool with 77.8% larger total L3 cache (64 MB vs 36 MB).
Which one is the smarter buy today, not just the cheaper CPU?
Ryzen 9 7900 is the better buy right now. Ryzen 9 7900 comes in $2,070 cheaper on MSRP at $429 MSRP versus $2,499 MSRP, and it still gives you a 19.9% average FPS lead across 50 shared CPU game tests in our data. It is also 482.9% better value on MSRP (112.3 vs 19.3 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.
Which one is more future-proof for 2026 and beyond?
Ryzen 9 7900 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), a healthier platform with AM5 and DDR5 instead of LGA4189, 77.8% larger total L3 cache (64 MB vs 36 MB), and more multi-core headroom with 12 cores / 24 threads instead of 24/48. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 9 7900 vs Xeon W-3345 Technical Specifications

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

AMD

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.

Intel

Xeon W-3345

The Xeon W-3345 is manufactured by Intel. It was released in 2015-01-01. It is based on the Ice Lake-W (2021) architecture. It features 24 cores and 48 threads. Base frequency is 3 GHz, with boost up to 4 GHz. L3 cache: 36 MB (total). L2 cache: 1 MB (per core). Built on 10 nm process technology. Socket: LGA4189. Thermal design power (TDP): 250 Watt. Memory support: DDR4-3200. Passmark benchmark score: 48,140 points. Launch price was $800.

Processing Power

The Ryzen 9 7900 packs 12 cores / 24 threads, while the Xeon W-3345 offers 24 cores / 48 threads — the Xeon W-3345 has 12 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 7900 versus 4 GHz on the Xeon W-3345 — a 29.8% clock advantage for the Ryzen 9 7900 (base: 3.7 GHz vs 3 GHz). The Ryzen 9 7900 uses the Raphael (Zen4) (2022−2023) architecture (5 nm), while the Xeon W-3345 uses Ice Lake-W (2021) (10 nm). In PassMark, the Ryzen 9 7900 scores 48,168 against the Xeon W-3345's 48,140 — a 0.1% lead for the Ryzen 9 7900. L3 cache: 64 MB (total) on the Ryzen 9 7900 vs 36 MB (total) on the Xeon W-3345.

FeatureRyzen 9 7900Xeon W-3345
Cores / Threads
12 / 24
24 / 48+100%
Boost Clock
5.4 GHz+35%
4 GHz
Base Clock
3.7 GHz+23%
3 GHz
L3 Cache
64 MB (total)+78%
36 MB (total)
L2 Cache
1 MB (per core)
1 MB (per core)
Process
5 nm-50%
10 nm
Architecture
Raphael (Zen4) (2022−2023)
Ice Lake-W (2021)
PassMark
48,168
48,140
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 W-3345 uses LGA4189 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Ryzen 9 7900 versus 3200 on the Xeon W-3345 — the Ryzen 9 7900 supports 62.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon W-3345 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 W-3345). PCIe lanes: 28 (Ryzen 9 7900) vs 128 (Xeon W-3345) — the Xeon W-3345 offers 100 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD X670E,AMD X670,AMD B650E,AMD B650,AMD A620 (Ryzen 9 7900) and SP3,C621A (Xeon W-3345).

FeatureRyzen 9 7900Xeon W-3345
Socket
AM5
LGA4189
PCIe Generation
PCIe 5.0+25%
PCIe 4.0
Max RAM Speed
DDR5-5200+63%
3200
Max RAM Capacity
128 GB
4096 GB+3100%
RAM Channels
2
8+300%
ECC Support
Yes
Yes
PCIe Lanes
28
128+357%
🔧

Advanced Features

Only the Ryzen 9 7900 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. 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 W-3345). The Ryzen 9 7900 includes integrated graphics (Radeon Graphics (Raphael)), while the Xeon W-3345 requires a dedicated GPU. Direct competitor: Ryzen 9 7900 rivals Core i9-13900; Xeon W-3345 rivals Xeon Platinum 8362.

FeatureRyzen 9 7900Xeon W-3345
Integrated GPU
Yes
No
IGPU Model
Radeon Graphics (Raphael)
None
Unlocked
Yes
No
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 W-3345 came in at $2499. On launch pricing ($429 vs $2499), Ryzen 9 7900 was $2070 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 7900 delivers 112.3 pts/$ vs 19.3 pts/$ for the Xeon W-3345 — making the Ryzen 9 7900 the 141.4% better value option.

FeatureRyzen 9 7900Xeon W-3345
MSRP
$429-83%
$2499
Performance per Dollar
112.3+482%
19.3
Release Date
2023
2021

Affiliate Disclosure

ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.