Ryzen 9 7945HX vs Xeon w7-3455

Ryzen 9 7945HX vs Xeon w7-3455 Performance Spectrum

Ryzen 9 7945HX

16 / 32

54,425

0.0%

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper PRO 5995WX

Ryzen Threadripper 9970X

Xeon w7-3455

24 / 48

54,925

+0.9%

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 7945HX vs Xeon w7-3455 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 7945HX vs Xeon w7-3455: 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 7945HX

2023

Why buy it

✅Better for gaming: +7.4% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 270W, a 215W reduction.
✅Integrated graphics onboard with Radeon 610M, while Xeon w7-3455 needs a discrete GPU.
✅Includes a boxed cooler (Laptop Integrated), unlike Xeon w7-3455.

Trade-offs

❌Less compelling for workstation-style loads than Xeon w7-3455, which brings 24 cores / 48 threads and 112 PCIe lanes.

Xeon w7-3455

2023

Why buy it

✅Better for workstations and heavier parallel workloads: 24 cores / 48 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 7945HX across 50 shared CPU benchmark tests.
❌Lower Geekbench multi-core (1,898 vs 16,214).
❌Launch MSRP is still $2,489 MSRP, while Ryzen 9 7945HX mostly shows up through inconsistent older-market listings.
❌390.9% higher power demand at 270W vs 55W.
❌No integrated graphics, while Ryzen 9 7945HX can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 9 7945HX better than Xeon w7-3455?

Not really, because they are built for different jobs. Xeon w7-3455 makes more sense for workstation-style multi-core throughput, while Ryzen 9 7945HX 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 7945HX is the better pick. According to our tests, it delivers 7.4% 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 7945HX is the stronger fit. You are getting 754.3% better Geekbench multi-core, backed by 16 cores and 32 threads.

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

Ryzen 9 7945HX is still the faster CPU overall, but Xeon w7-3455 is easier to justify if budget matters more than peak performance. Ryzen 9 7945HX comes in at an unclear MSRP at unclear MSRP versus $2,489 MSRP, and it still gives you a 7.4% average FPS lead across 50 shared CPU game tests in our data. Xeon w7-3455 is also 100.0% better value on MSRP (22.1 vs 0.0 PassMark/$), 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 w7-3455 is the safer long-term CPU choice because it gives you more room to grow and a better platform outlook.

Ryzen 9 7945HX vs Xeon w7-3455 Technical Specifications

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

Ryzen 9 7945HX

The Ryzen 9 7945HX is manufactured by AMD. It was released in 2023-03-12. It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on CCD = 5 nm, I/O = 6 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 54,425 points. Launch price was $700.

Xeon w7-3455

The Xeon w7-3455 is manufactured by Intel. It was released in 15 February 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 24 cores and 48 threads. Base frequency is 2.5 GHz, with boost up to 4.8 GHz. L3 cache: 67.5 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 270 Watt. Memory support: DDR5-4800. Passmark benchmark score: 54,925 points. Launch price was $2,489.

⚡

Processing Power

The Ryzen 9 7945HX packs 16 cores / 32 threads, while the Xeon w7-3455 offers 24 cores / 48 threads — the Xeon w7-3455 has 8 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 7945HX versus 4.8 GHz on the Xeon w7-3455 — a 11.8% clock advantage for the Ryzen 9 7945HX (base: 2.5 GHz vs 2.5 GHz). The Ryzen 9 7945HX uses the Dragon Range-HX (Zen 4) (2023−2024) architecture (CCD = 5 nm, I/O = 6 nm), while the Xeon w7-3455 uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the Ryzen 9 7945HX scores 54,425 against the Xeon w7-3455's 54,925 — a 0.9% lead for the Xeon w7-3455. Geekbench 6 single-core — the metric most relevant to gaming — records 2,774 vs 1,900, a 37.4% lead for the Ryzen 9 7945HX that directly translates to higher frame rates. Multi-core Geekbench: 16,214 vs 1,898 (158.1% advantage for the Ryzen 9 7945HX). L3 cache: 64 MB (total) on the Ryzen 9 7945HX vs 67.5 MB on the Xeon w7-3455.

Feature	Ryzen 9 7945HX	Xeon w7-3455
Cores / Threads	16 / 32	24 / 48+50%
Boost Clock	5.4 GHz+13%	4.8 GHz
Base Clock	2.5 GHz	2.5 GHz
L3 Cache	64 MB (total)	67.5 MB+5%
L2 Cache	1 MB (per core)	2 MB (per core)+100%
Process	CCD = 5 nm, I/O = 6 nm-29%	Intel 7 nm
Architecture	Dragon Range-HX (Zen 4) (2023−2024)	Sapphire Rapids (2023−2024)
PassMark	54,425	54,925
Cinebench R23 Multi	34,521	—
Geekbench 6 Single	2,774+46%	1,900
Geekbench 6 Multi	16,214+754%	1,898

🧠

Memory & Platform

The Ryzen 9 7945HX uses the FL1 socket (PCIe 5.0), while the Xeon w7-3455 uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Ryzen 9 7945HX versus DDR5-4800 on the Xeon w7-3455 — the Ryzen 9 7945HX supports 8.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon w7-3455 supports up to 4096 GB of RAM compared to 64 GB — 6300% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 7945HX) vs 8 (Xeon w7-3455). PCIe lanes: 28 (Ryzen 9 7945HX) vs 112 (Xeon w7-3455) — the Xeon w7-3455 offers 84 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FL1 (Ryzen 9 7945HX) and Intel W790 (Xeon w7-3455).

Feature	Ryzen 9 7945HX	Xeon w7-3455
Socket	FL1	LGA4677
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-5200+8%	DDR5-4800
Max RAM Capacity	64 GB	4096 GB+6300%
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: AMD-V (Ryzen 9 7945HX) vs true (Xeon w7-3455). The Ryzen 9 7945HX includes integrated graphics (Radeon 610M), while the Xeon w7-3455 requires a dedicated GPU. Primary use case: Ryzen 9 7945HX targets Extreme Gaming / Mobile Workstation. Direct competitor: Ryzen 9 7945HX rivals Core i9-14900HX; Xeon w7-3455 rivals Threadripper PRO 7965WX.