Core Ultra 5 135U vs Ryzen 9 5900X

Core Ultra 5 135U vs Ryzen 9 5900X Performance Spectrum

Core Ultra 5 135U

12 / 14

16,900

0.0%

38,955

+130.5%

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

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.

Core Ultra 5 135U vs Ryzen 9 5900X 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.

Core Ultra 5 135U vs Ryzen 9 5900X: Pros, Cons & Final Verdict

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

Core Ultra 5 135U

2023

Why buy it

✅Newer platform on FCBGA2049 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Intel Arc Graphics, while Ryzen 9 5900X needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (9,315 vs 21,000).
❌Smaller total L3 cache (12 MB vs 64 MB).

Ryzen 9 5900X

2020

Why buy it

✅Better for gaming: +44.4% higher average FPS across 50 shared CPU benchmark tests.
✅+433.3% larger total L3 cache (64 MB vs 12 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $549 MSRP, while Core Ultra 5 135U mostly shows up through inconsistent older-market listings.
❌Older platform position on AM4 with DDR4, while Core Ultra 5 135U moves to FCBGA2049 and DDR5.
❌No integrated graphics, while Core Ultra 5 135U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 9 5900X better than Core Ultra 5 135U?

Yes. Ryzen 9 5900X is the better all-around CPU here. It gives you a 44.4% average FPS lead across 50 shared CPU game tests in our data, 125.4% better Cinebench R23 multi-core, and 130.5% higher PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 5900X is the better pick. According to our tests, it delivers 44.4% 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 5900X is the stronger fit. You are getting 125.4% better Cinebench R23 multi-core, backed by 12 cores and 24 threads. It also has the larger cache pool with 433.3% larger total L3 cache (64 MB vs 12 MB).

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

Ryzen 9 5900X is the better buy right now. Ryzen 9 5900X comes in at an unclear MSRP at $549 MSRP versus unclear MSRP, and it still gives you a 44.4% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (71.0 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core Ultra 5 135U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020) and a healthier platform with FCBGA2049 and DDR5 instead of AM4. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core Ultra 5 135U vs Ryzen 9 5900X Technical Specifications

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

Core Ultra 5 135U

The Core Ultra 5 135U is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Meteor Lake-P (2023) architecture. It features 12 cores and 14 threads. Base frequency is 1.6 GHz, with boost up to 4.4 GHz. L3 cache: 12 MB (total). L2 cache: 2 MB (per core). Built on 7 nm process technology. Socket: FCBGA2049. Thermal design power (TDP): + 12 MB. Memory support: DDR5. Passmark benchmark score: 16,900 points. Launch price was $332.

Ryzen 9 5900X

The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.

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Processing Power

The Core Ultra 5 135U packs 12 cores / 14 threads, matching the Ryzen 9 5900X's 12 cores. Boost clocks reach 4.4 GHz on the Core Ultra 5 135U versus 4.8 GHz on the Ryzen 9 5900X — a 8.7% clock advantage for the Ryzen 9 5900X (base: 1.6 GHz vs 3.7 GHz). The Core Ultra 5 135U uses the Meteor Lake-P (2023) architecture (7 nm), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the Core Ultra 5 135U scores 16,900 against the Ryzen 9 5900X's 38,955 — a 79% lead for the Ryzen 9 5900X. Cinebench R23 multi-core: 9,315 vs 21,000 (77.1% advantage for the Ryzen 9 5900X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,948 vs 2,174, a 11% lead for the Ryzen 9 5900X that directly translates to higher frame rates. Multi-core Geekbench: 8,000 vs 11,888 (39.1% advantage for the Ryzen 9 5900X). L3 cache: 12 MB (total) on the Core Ultra 5 135U vs 64 MB on the Ryzen 9 5900X.

Feature	Core Ultra 5 135U	Ryzen 9 5900X
Cores / Threads	12 / 14	12 / 24
Boost Clock	4.4 GHz	4.8 GHz+9%
Base Clock	1.6 GHz	3.7 GHz+131%
L3 Cache	12 MB (total)	64 MB+433%
L2 Cache	2 MB (per core)	512K (per core)+25500%
Process	7 nm	7 nm, 12 nm
Architecture	Meteor Lake-P (2023)	Vermeer (Zen3) (2020−2022)
PassMark	16,900	38,955+131%
Cinebench R23 Multi	9,315	21,000+125%
Geekbench 6 Single	1,948	2,174+12%
Geekbench 6 Multi	8,000	11,888+49%

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Memory & Platform

The Core Ultra 5 135U uses the FCBGA2049 socket (PCIe 5.0), while the Ryzen 9 5900X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Core Ultra 5 135U versus DDR4-3200 on the Ryzen 9 5900X — the Core Ultra 5 135U supports 75% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 5900X supports up to 128 GB of RAM compared to 96 GB — 33.3% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core Ultra 5 135U) vs 24 (Ryzen 9 5900X) — the Ryzen 9 5900X offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Core Ultra 5 135U) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).

Feature	Core Ultra 5 135U	Ryzen 9 5900X
Socket	FCBGA2049	AM4
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-5600+75%	DDR4-3200
Max RAM Capacity	96 GB	128 GB+33%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	20	24+20%

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Advanced Features

Virtualization support: Yes (Core Ultra 5 135U) vs AMD-V (Ryzen 9 5900X). The Core Ultra 5 135U includes integrated graphics (Intel Arc Graphics), while the Ryzen 9 5900X requires a dedicated GPU. Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K.