Core Ultra 7 155H
Ryzen 9 5900X
Core Ultra 7 155H vs Ryzen 9 5900X Performance Spectrum
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 7 155H 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.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Core Ultra 7 155H 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 7 155H
2023Why buy it
- ✅Newer platform on FCBGA2049 with DDR5 support instead of AM4 and DDR4.
- ✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.
- ✅Integrated graphics onboard with Intel Arc Graphics (8 Xe-cores), while Ryzen 9 5900X needs a discrete GPU.
- ✅Includes a boxed cooler (Laptop Integrated), unlike Ryzen 9 5900X.
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 50 shared CPU benchmark tests.
- ❌Lower Cinebench R23 multi-core (17,650 vs 21,000).
- ❌Smaller total L3 cache (24 MB vs 64 MB).
Ryzen 9 5900X
2020Why buy it
- ✅Better for gaming: +13.4% higher average FPS across 50 shared CPU benchmark tests.
- ✅+166.7% larger total L3 cache (64 MB vs 24 MB).
Trade-offs
- ❌Launch MSRP is still $549 MSRP, while Core Ultra 7 155H mostly shows up through inconsistent older-market listings.
- ❌Older platform position on AM4 with DDR4, while Core Ultra 7 155H moves to FCBGA2049 and DDR5.
- ❌No integrated graphics, while Core Ultra 7 155H can still boot and troubleshoot without a discrete GPU.
- ❌No boxed cooler included, unlike Core Ultra 7 155H.
Quick Answers
So, is Ryzen 9 5900X better than Core Ultra 7 155H?
Which one is better for gaming?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Core Ultra 7 155H vs Ryzen 9 5900X Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Core Ultra 7 155H
The Core Ultra 7 155H is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Meteor Lake-H (2023) architecture. It features 16 cores and 22 threads. Base frequency is 3.8 GHz, with boost up to 4.8 GHz. L3 cache: 24 MB (total). L2 cache: 2 MB (per core). Built on 7 nm process technology. Socket: FCBGA2049. Thermal design power (TDP): + 24 MB. Memory support: DDR5. Passmark benchmark score: 24,705 points. Launch price was $503.
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.
Processing Power
The Core Ultra 7 155H packs 16 cores / 22 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the Core Ultra 7 155H has 4 more cores. Boost clocks reach 4.8 GHz on the Core Ultra 7 155H versus 4.8 GHz on the Ryzen 9 5900X — identical boost frequencies (base: 3.8 GHz vs 3.7 GHz). The Core Ultra 7 155H uses the Meteor Lake-H (2023) architecture (7 nm), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the Core Ultra 7 155H scores 24,705 against the Ryzen 9 5900X's 38,955 — a 44.8% lead for the Ryzen 9 5900X. Cinebench R23 multi-core: 17,650 vs 21,000 (17.3% advantage for the Ryzen 9 5900X). Geekbench 6 single-core — the metric most relevant to gaming — records 2,384 vs 2,174, a 9.2% lead for the Core Ultra 7 155H that directly translates to higher frame rates. Multi-core Geekbench: 12,433 vs 11,888 (4.5% advantage for the Core Ultra 7 155H). L3 cache: 24 MB (total) on the Core Ultra 7 155H vs 64 MB on the Ryzen 9 5900X.
| Feature | Core Ultra 7 155H | Ryzen 9 5900X |
|---|---|---|
| Cores / Threads | 16 / 22+33% | 12 / 24 |
| Boost Clock | 4.8 GHz | 4.8 GHz |
| Base Clock | 3.8 GHz+3% | 3.7 GHz |
| L3 Cache | 24 MB (total) | 64 MB+167% |
| L2 Cache | 2 MB (per core) | 512K (per core)+25500% |
| Process | 7 nm | 7 nm, 12 nm |
| Architecture | Meteor Lake-H (2023) | Vermeer (Zen3) (2020−2022) |
| PassMark | 24,705 | 38,955+58% |
| Cinebench R23 Multi | 17,650 | 21,000+19% |
| Geekbench 6 Single | 2,384+10% | 2,174 |
| Geekbench 6 Multi | 12,433+5% | 11,888 |
Memory & Platform
The Core Ultra 7 155H 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 LPDDR5x-7467, DDR5-5600 on the Core Ultra 7 155H versus DDR4-3200 on the Ryzen 9 5900X — the Core Ultra 7 155H supports 133.3% 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: 28 (Core Ultra 7 155H) vs 24 (Ryzen 9 5900X) — the Core Ultra 7 155H offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Meteor Lake SoC (Core Ultra 7 155H) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).
| Feature | Core Ultra 7 155H | Ryzen 9 5900X |
|---|---|---|
| Socket | FCBGA2049 | AM4 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | LPDDR5x-7467, DDR5-5600+133% | DDR4-3200 |
| Max RAM Capacity | 96 GB | 128 GB+33% |
| RAM Channels | 2 | 2 |
| ECC Support | No | Yes |
| PCIe Lanes | 28+17% | 24 |
Advanced Features
Only the Ryzen 9 5900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d, EPT (Core Ultra 7 155H) vs AMD-V (Ryzen 9 5900X). The Core Ultra 7 155H includes integrated graphics (Intel Arc Graphics (8 Xe-cores)), while the Ryzen 9 5900X requires a dedicated GPU. Primary use case: Core Ultra 7 155H targets Thin-and-light Performance / AI, Ryzen 9 5900X targets Workstation. Direct competitor: Core Ultra 7 155H rivals Ryzen 7 8840HS; Ryzen 9 5900X rivals Core i9-12900K.
| Feature | Core Ultra 7 155H | Ryzen 9 5900X |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel Arc Graphics (8 Xe-cores) | — |
| Unlocked | No | Yes |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d, EPT | AMD-V |
| Target Use | Thin-and-light Performance / AI | Workstation |
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