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.

Core Ultra 7 255HX

2025

Why buy it

✅+12.6% higher Geekbench multi-core.
✅Draws 55W instead of 120W, a 65W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 6 shared CPU benchmark tests.

Ryzen 7 7800X3D

2023

Why buy it

✅Better for gaming: +27.8% higher average FPS across 6 shared CPU benchmark tests.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Lower Geekbench multi-core (15,000 vs 16,885).
❌Launch MSRP is still $449 MSRP, while Core Ultra 7 255HX mostly shows up through inconsistent older-market listings.
❌118.2% higher power demand at 120W vs 55W.

Core Ultra 7 255HX

2025

Ryzen 7 7800X3D

2023

Why buy it

✅+12.6% higher Geekbench multi-core.
✅Draws 55W instead of 120W, a 65W reduction.

Why buy it

✅Better for gaming: +27.8% higher average FPS across 6 shared CPU benchmark tests.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 6 shared CPU benchmark tests.

Trade-offs

❌Lower Geekbench multi-core (15,000 vs 16,885).
❌Launch MSRP is still $449 MSRP, while Core Ultra 7 255HX mostly shows up through inconsistent older-market listings.
❌118.2% higher power demand at 120W vs 55W.

Quick Answers

So, is Core Ultra 7 255HX better than Ryzen 7 7800X3D?

It depends on what matters more to you. For gaming, Ryzen 7 7800X3D is ahead with a 27.8% average FPS lead across 6 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core Ultra 7 255HX pulls ahead with 12.6% better Geekbench multi-core. Ryzen 7 7800X3D also has the bigger cache pool with 220% larger total L3 cache (96 MB vs 30 MB).

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

For streaming, content creation, and heavier multitasking, Core Ultra 7 255HX is the better fit. You are getting 12.6% better Geekbench multi-core, backed by 20 cores and 20 threads.

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

Core Ultra 7 255HX is still the faster CPU overall, but Ryzen 7 7800X3D makes more sense if price matters more than absolute performance. Core Ultra 7 255HX is at an unclear MSRP at unclear MSRP versus $449 MSRP, and it gives you 12.6% better Geekbench multi-core. The trade-off is that Ryzen 7 7800X3D is still the better pure gaming CPU with a 27.8% average FPS lead across 6 shared CPU game tests in our data. Ryzen 7 7800X3D is also 100.0% better value on MSRP (76.4 vs 0.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Core Ultra 7 255HX is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2023) and more multi-core headroom with 20 cores / 20 threads instead of 8/16. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

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.

Core Ultra 7 255HX Benchmark Check

Ryzen 7 7800X3D Benchmark Check

Path of Exile 2

Preset	Core Ultra 7 255HX	Ryzen 7 7800X3D
1080p
low	280 FPS	266 FPS
medium	272 FPS	247 FPS
high	228 FPS	211 FPS
ultra	191 FPS	186 FPS
1440p
low	225 FPS	258 FPS
medium	193 FPS	215 FPS
high	156 FPS	171 FPS
ultra	135 FPS	154 FPS
4K
low	151 FPS	179 FPS
medium	129 FPS	149 FPS
high	99 FPS	112 FPS
ultra	87 FPS	100 FPS

Open Core Ultra 7 255HX Open Ryzen 7 7800X3D

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core Ultra 7 255HX	Ryzen 7 7800X3D
1080p
low	673 FPS	857 FPS
medium	574 FPS	737 FPS
high	483 FPS	580 FPS
ultra	438 FPS	493 FPS
1440p
low	584 FPS	722 FPS
medium	515 FPS	611 FPS
high	434 FPS	500 FPS
ultra	370 FPS	398 FPS
4K
low	345 FPS	396 FPS
medium	310 FPS	339 FPS
high	292 FPS	315 FPS
ultra	254 FPS	273 FPS

Open Core Ultra 7 255HX Open Ryzen 7 7800X3D

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core Ultra 7 255HX	Ryzen 7 7800X3D
1080p
low	839 FPS	857 FPS
medium	685 FPS	857 FPS
high	610 FPS	857 FPS
ultra	522 FPS	857 FPS
1440p
low	727 FPS	857 FPS
medium	596 FPS	851 FPS
high	519 FPS	786 FPS
ultra	441 FPS	656 FPS
4K
low	515 FPS	558 FPS
medium	434 FPS	479 FPS
high	394 FPS	427 FPS
ultra	336 FPS	362 FPS

Open Core Ultra 7 255HX Open Ryzen 7 7800X3D

League of Legends

League of Legends

Valorant

Preset	Core Ultra 7 255HX	Ryzen 7 7800X3D
1080p
low	995 FPS	857 FPS
medium	901 FPS	857 FPS
high	782 FPS	857 FPS
ultra	709 FPS	782 FPS
1440p
low	814 FPS	857 FPS
medium	724 FPS	760 FPS
high	627 FPS	669 FPS
ultra	555 FPS	576 FPS
4K
low	555 FPS	618 FPS
medium	501 FPS	556 FPS
high	449 FPS	495 FPS
ultra	396 FPS	428 FPS

Open Core Ultra 7 255HX Open Ryzen 7 7800X3D

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core Ultra 7 255HX and Ryzen 7 7800X3D

Core Ultra 7 255HX

The Core Ultra 7 255HX is manufactured by Intel. It was released in 2025-01-01. It is based on the Arrow Lake-HX (2025) architecture. It features 20 cores and 20 threads. Base frequency is 2.4 GHz, with boost up to 5.2 GHz. L3 cache: 30 MB (total). L2 cache: 3 MB (per core). Built on 3 nm process technology. Socket: FCBGA2114. Thermal design power (TDP): 55 Watt. Memory support: DDR5-6400. Passmark benchmark score: 49,765 points. Launch price was $450.

Ryzen 7 7800X3D

The Ryzen 7 7800X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 8 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 96 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 34,293 points. Launch price was $449.

⚡

Processing Power

The Core Ultra 7 255HX packs 20 cores / 20 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Core Ultra 7 255HX has 12 more cores. Boost clocks reach 5.2 GHz on the Core Ultra 7 255HX versus 5 GHz on the Ryzen 7 7800X3D — a 3.9% clock advantage for the Core Ultra 7 255HX (base: 2.4 GHz vs 4.4 GHz). The Core Ultra 7 255HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the Core Ultra 7 255HX scores 49,765 against the Ryzen 7 7800X3D's 34,293 — a 36.8% lead for the Core Ultra 7 255HX. Geekbench 6 single-core — the metric most relevant to gaming — records 2,923 vs 2,700, a 7.9% lead for the Core Ultra 7 255HX that directly translates to higher frame rates. Multi-core Geekbench: 16,885 vs 15,000 (11.8% advantage for the Core Ultra 7 255HX). L3 cache: 30 MB (total) on the Core Ultra 7 255HX vs 96 MB (total) on the Ryzen 7 7800X3D.

Feature	Core Ultra 7 255HX	Ryzen 7 7800X3D
Cores / Threads	20 / 20+150%	8 / 16
Boost Clock	5.2 GHz+4%	5 GHz
Base Clock	2.4 GHz	4.4 GHz+83%
L3 Cache	30 MB (total)	96 MB (total)+220%
L2 Cache	3 MB (per core)+200%	1 MB (per core)
Process	3 nm-40%	5 nm
Architecture	Arrow Lake-HX (2025)	Raphael (Zen4) (2022−2023)
PassMark	49,765+45%	34,293
Cinebench R23 Multi	—	18,500
Geekbench 6 Single	2,923+8%	2,700
Geekbench 6 Multi	16,885+13%	15,000

🧠

Memory & Platform

The Core Ultra 7 255HX uses the FCBGA2114 socket (PCIe 5.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-6400 memory speed. The Core Ultra 7 255HX supports up to 192 GB of RAM compared to 128 GB — 40% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Core Ultra 7 255HX) vs 28 (Ryzen 7 7800X3D) — the Ryzen 7 7800X3D offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel HM870,Intel WM880 (Core Ultra 7 255HX) and X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D).

Feature	Core Ultra 7 255HX	Ryzen 7 7800X3D
Socket	FCBGA2114	AM5
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-6400	DDR5-5200
Max RAM Capacity	192 GB+50%	128 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	24	28+17%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 7 7800X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core Ultra 7 255HX) vs AMD-V (Ryzen 7 7800X3D). Both include integrated graphics — Intel Arc Xe-LPG (Core Ultra 7 255HX) and AMD Radeon Graphics (2-core) (Ryzen 7 7800X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 7 7800X3D targets Gaming. Direct competitor: Core Ultra 7 255HX rivals Ryzen 9 9850HX; Ryzen 7 7800X3D rivals Intel Core i7-14700K.