Ryzen Threadripper PRO 3945WX vs Xeon D-2799

Ryzen Threadripper PRO 3945WX vs Xeon D-2799 Performance Spectrum

Ryzen Threadripper PRO 3945WX

12 / 24

33,455

0.0%

Ryzen Threadripper PRO 7945WX

Ryzen 9 9950X

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper 7970X

Xeon D-2799

20 / 40

33,792

+1.0%

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 Threadripper PRO 3945WX vs Xeon D-2799 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 Threadripper PRO 3945WX vs Xeon D-2799: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Ryzen Threadripper PRO 3945WX

2020

Why buy it

✅Better for gaming: +29.3% higher average FPS across 50 shared CPU benchmark tests.
✅+113.3% larger total L3 cache (64 MB vs 30 MB).
✅300% more PCIe lanes (128 vs 32) for storage and expansion-heavy builds.

Trade-offs

❌Lower Cinebench R23 multi-core (18,500 vs 20,000).
❌Launch MSRP is still $1,149 MSRP, while Xeon D-2799 mostly shows up through inconsistent older-market listings.
❌117.1% higher power demand at 280W vs 129W.

Xeon D-2799

2022

Why buy it

✅+8.1% higher Cinebench R23 multi-core.
✅Draws 129W instead of 280W, a 151W reduction.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 3945WX across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (30 MB vs 64 MB).

Quick Answers

So, is Xeon D-2799 better than Ryzen Threadripper PRO 3945WX?

It depends on what you want from the system. For gaming, Ryzen Threadripper PRO 3945WX is ahead with a 29.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon D-2799 pulls ahead with 8.1% better Cinebench R23 multi-core. Ryzen Threadripper PRO 3945WX also has the bigger cache pool with 113.3% larger total L3 cache (64 MB vs 30 MB).

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

For streaming, content creation, and heavier multitasking, Xeon D-2799 is the stronger fit. You are getting 8.1% better Cinebench R23 multi-core, backed by 20 cores and 40 threads.

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

Xeon D-2799 is still the faster CPU overall, but Ryzen Threadripper PRO 3945WX is easier to justify if budget matters more than peak performance. Xeon D-2799 comes in at an unclear MSRP at unclear MSRP versus $1,149 MSRP, and it still gives you 8.1% better Cinebench R23 multi-core. The compromise is that Ryzen Threadripper PRO 3945WX is still the better pure gaming CPU with a 29.3% average FPS lead across 50 shared CPU game tests in our data. Ryzen Threadripper PRO 3945WX is also 100.0% better value on MSRP (29.1 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Xeon D-2799 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2020), more multi-core headroom with 20 cores / 40 threads instead of 12/24, and AVX-512 support for heavier modern compute workloads. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Ryzen Threadripper PRO 3945WX vs Xeon D-2799 Technical Specifications

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

Ryzen Threadripper PRO 3945WX

The Ryzen Threadripper PRO 3945WX is manufactured by AMD. It was released in 14 July 2020 (5 years ago). It is based on the Castle Peak (2020) architecture. It features 12 cores and 24 threads. Base frequency is 4 GHz, with boost up to 4.3 GHz. L3 cache: 64 MB. L2 cache: 512 kB (per core). Built on 7 nm, 12 nm process technology. Socket: sWRX8. Thermal design power (TDP): 280 Watt. Memory support: DDR4-3200. Passmark benchmark score: 33,455 points. Launch price was $499.

Xeon D-2799

The Xeon D-2799 is manufactured by Intel. It was released in 24 February 2022 (3 years ago). It is based on the Ice Lake-D (2022−2023) architecture. It features 20 cores and 40 threads. Base frequency is 2.4 GHz, with boost up to 3.4 GHz. L3 cache: 30 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: FCBGA2579. Thermal design power (TDP): 129 Watt. Memory support: DDR4. Passmark benchmark score: 33,792 points. Launch price was $1,972.

⚡

Processing Power

The Ryzen Threadripper PRO 3945WX packs 12 cores / 24 threads, while the Xeon D-2799 offers 20 cores / 40 threads — the Xeon D-2799 has 8 more cores. Boost clocks reach 4.3 GHz on the Ryzen Threadripper PRO 3945WX versus 3.4 GHz on the Xeon D-2799 — a 23.4% clock advantage for the Ryzen Threadripper PRO 3945WX (base: 4 GHz vs 2.4 GHz). The Ryzen Threadripper PRO 3945WX uses the Castle Peak (2020) architecture (7 nm, 12 nm), while the Xeon D-2799 uses Ice Lake-D (2022−2023) (10 nm). In PassMark, the Ryzen Threadripper PRO 3945WX scores 33,455 against the Xeon D-2799's 33,792 — a 1% lead for the Xeon D-2799. Cinebench R23 multi-core: 18,500 vs 20,000 (7.8% advantage for the Xeon D-2799). Geekbench 6 single-core — the metric most relevant to gaming — records 1,652 vs 1,959, a 17% lead for the Xeon D-2799 that directly translates to higher frame rates. Multi-core Geekbench: 11,500 vs 1,895 (143.4% advantage for the Ryzen Threadripper PRO 3945WX). L3 cache: 64 MB on the Ryzen Threadripper PRO 3945WX vs 30 MB (total) on the Xeon D-2799.

Feature	Ryzen Threadripper PRO 3945WX	Xeon D-2799
Cores / Threads	12 / 24	20 / 40+67%
Boost Clock	4.3 GHz+26%	3.4 GHz
Base Clock	4 GHz+67%	2.4 GHz
L3 Cache	64 MB+113%	30 MB (total)
L2 Cache	512 kB (per core)	1.25 MB (per core)+150%
Process	7 nm, 12 nm-30%	10 nm
Architecture	Castle Peak (2020)	Ice Lake-D (2022−2023)
PassMark	33,455	33,792+1%
Cinebench R23 Multi	18,500	20,000+8%
Geekbench 6 Single	1,652	1,959+19%
Geekbench 6 Multi	11,500+507%	1,895

🧠

Memory & Platform

The Ryzen Threadripper PRO 3945WX uses the sWRX8 socket (PCIe 4.0), while the Xeon D-2799 uses FCBGA2579 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. The Ryzen Threadripper PRO 3945WX supports up to 2048 GB of RAM compared to 1024 GB — 100% more capacity for professional workloads. Memory channels: 8 (Ryzen Threadripper PRO 3945WX) vs 4 (Xeon D-2799). PCIe lanes: 128 (Ryzen Threadripper PRO 3945WX) vs 32 (Xeon D-2799) — the Ryzen Threadripper PRO 3945WX offers 96 more lanes for additional GPUs or NVMe drives. Chipset compatibility: WRX80 (Ryzen Threadripper PRO 3945WX) and Ice Lake-D (Xeon D-2799).

Feature	Ryzen Threadripper PRO 3945WX	Xeon D-2799
Socket	sWRX8	FCBGA2579
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	DDR4-3200	DDR4-3200
Max RAM Capacity	2048 GB+100%	1024 GB
RAM Channels	8+100%	4
ECC Support	Yes	Yes
PCIe Lanes	128+300%	32

🔧

Advanced Features

Only the Ryzen Threadripper PRO 3945WX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon D-2799 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen Threadripper PRO 3945WX) vs VT-x, VT-d, EPT (Xeon D-2799). Primary use case: Ryzen Threadripper PRO 3945WX targets Professional Workstation, Xeon D-2799 targets Edge Server / Networking. Direct competitor: Ryzen Threadripper PRO 3945WX rivals Xeon w5-2455X; Xeon D-2799 rivals EPYC 7302.