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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Ryzen 9 7945HX

2023

Why buy it

✅+754.3% higher Geekbench multi-core.
✅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

❌Worse for gaming: lower average FPS than Xeon w7-3455 across 4 shared CPU benchmark tests.
❌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 gaming: +22.6% higher average FPS across 4 shared CPU benchmark tests.
✅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

❌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.
❌No boxed cooler included, unlike Ryzen 9 7945HX.

Ryzen 9 7945HX

2023

Xeon w7-3455

2023

Why buy it

✅+754.3% higher Geekbench multi-core.
✅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.

Why buy it

✅Better for gaming: +22.6% higher average FPS across 4 shared CPU benchmark tests.
✅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 Xeon w7-3455 across 4 shared CPU benchmark tests.
❌Less compelling for workstation-style loads than Xeon w7-3455, which brings 24 cores / 48 threads and 112 PCIe lanes.

Trade-offs

❌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.
❌No boxed cooler included, unlike Ryzen 9 7945HX.

Quick Answers

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

Not in a simple one-size-fits-all way. Xeon w7-3455 makes more sense for workstation-style multi-core throughput, while Ryzen 9 7945HX is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

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

For streaming, content creation, and heavier multitasking, Ryzen 9 7945HX is the better 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?

Xeon w7-3455 is the smarter buy today. Xeon w7-3455 is at an unclear MSRP at $2,489 MSRP versus unclear MSRP, and it gives you a 22.6% average FPS lead across 4 shared CPU game tests in our data. The trade-off is that Ryzen 9 7945HX is still stronger for heavier multi-core work with 754.3% better Geekbench multi-core. It is also 100.0% better value on MSRP (22.1 vs 0.0 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play 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 overall headroom and a better platform outlook.

Games Benchmarks

Paired with RTX 4090

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.

Ryzen 9 7945HX Benchmark Check

Xeon w7-3455 Benchmark Check

Path of Exile 2

Preset	Ryzen 9 7945HX	Xeon w7-3455
1080p
low	301 FPS	311 FPS
medium	276 FPS	301 FPS
high	224 FPS	242 FPS
ultra	190 FPS	204 FPS
1440p
low	271 FPS	270 FPS
medium	226 FPS	233 FPS
high	172 FPS	175 FPS
ultra	153 FPS	154 FPS
4K
low	189 FPS	184 FPS
medium	157 FPS	157 FPS
high	119 FPS	118 FPS
ultra	107 FPS	106 FPS

Open Ryzen 9 7945HX Open Xeon w7-3455

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 7945HX	Xeon w7-3455
1080p
low	744 FPS	682 FPS
medium	620 FPS	593 FPS
high	466 FPS	482 FPS
ultra	397 FPS	427 FPS
1440p
low	630 FPS	551 FPS
medium	541 FPS	489 FPS
high	419 FPS	415 FPS
ultra	328 FPS	341 FPS
4K
low	355 FPS	324 FPS
medium	309 FPS	288 FPS
high	272 FPS	267 FPS
ultra	230 FPS	234 FPS

Open Ryzen 9 7945HX Open Xeon w7-3455

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 7945HX	Xeon w7-3455
1080p
low	893 FPS	1025 FPS
medium	712 FPS	1057 FPS
high	618 FPS	974 FPS
ultra	533 FPS	834 FPS
1440p
low	718 FPS	1002 FPS
medium	572 FPS	888 FPS
high	487 FPS	802 FPS
ultra	418 FPS	656 FPS
4K
low	513 FPS	600 FPS
medium	427 FPS	517 FPS
high	383 FPS	461 FPS
ultra	323 FPS	397 FPS

Open Ryzen 9 7945HX Open Xeon w7-3455

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 7945HX	Xeon w7-3455
1080p
low	1129 FPS	1291 FPS
medium	1006 FPS	1015 FPS
high	873 FPS	982 FPS
ultra	768 FPS	850 FPS
1440p
low	900 FPS	1045 FPS
medium	790 FPS	906 FPS
high	689 FPS	782 FPS
ultra	584 FPS	656 FPS
4K
low	648 FPS	778 FPS
medium	578 FPS	679 FPS
high	510 FPS	583 FPS
ultra	436 FPS	437 FPS

Open Ryzen 9 7945HX Open Xeon w7-3455

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 7945HX and Xeon w7-3455

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. Both support up to DDR5-5200 memory speed. The Xeon w7-3455 supports up to 4096 GB of RAM compared to 64 GB — 193.8% 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	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.