Core Ultra 9 285K vs Xeon Gold 6448H
Core Ultra 9 285K
Xeon Gold 6448H
Performance Spectrum - CPU
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core Ultra 9 285K
Performance Per Dollar Xeon Gold 6448H
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Ultra 9 285K | Xeon Gold 6448H |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($550) | ⚠️ Higher cost ($3,658) |
| Longevity | ✨ Modern (Arrow Lake-S (2024−2025) / 3 nm) | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) |
💎 Value Proposition
| Insight | Core Ultra 9 285K | Xeon Gold 6448H |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+539%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($550) | ⚠️ Higher cost ($3,658) |
Performance Check
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.
Technical Specifications
Side-by-side comparison of Core Ultra 9 285K and Xeon Gold 6448H
Core Ultra 9 285K
The Core Ultra 9 285K is manufactured by Intel. It was released in 24 October 2024 (1 year ago). It is based on the Arrow Lake-S (2024−2025) architecture. It features 24 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 5.6 GHz. L3 cache: 36 MB (total). L2 cache: 3 MB (per core). Built on 3 nm process technology. Socket: LGA1851. Thermal design power (TDP): 125 Watt. Memory support: DDR5-6400. Passmark benchmark score: 67,482 points. Launch price was $589.
Xeon Gold 6448H
The Xeon Gold 6448H is manufactured by Intel. It was released in 10 January 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 32 cores and 64 threads. Base frequency is 2.4 GHz, with boost up to 4.1 GHz. L3 cache: 60 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 250 Watt. Memory support: DDR5-4800, DDR5-4400. Passmark benchmark score: 70,292 points. Launch price was $3,658.
Processing Power
The Core Ultra 9 285K packs 24 cores / 24 threads, while the Xeon Gold 6448H offers 32 cores / 64 threads — the Xeon Gold 6448H has 8 more cores. Boost clocks reach 5.6 GHz on the Core Ultra 9 285K versus 4.1 GHz on the Xeon Gold 6448H — a 30.9% clock advantage for the Core Ultra 9 285K (base: 3.7 GHz vs 2.4 GHz). The Core Ultra 9 285K uses the Arrow Lake-S (2024−2025) architecture (3 nm), while the Xeon Gold 6448H uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the Core Ultra 9 285K scores 67,482 against the Xeon Gold 6448H's 70,292 — a 4.1% lead for the Xeon Gold 6448H. L3 cache: 36 MB (total) on the Core Ultra 9 285K vs 60 MB on the Xeon Gold 6448H.
| Feature | Core Ultra 9 285K | Xeon Gold 6448H |
|---|---|---|
| Cores / Threads | 24 / 24 | 32 / 64+33% |
| Boost Clock | 5.6 GHz+37% | 4.1 GHz |
| Base Clock | 3.7 GHz+54% | 2.4 GHz |
| L3 Cache | 36 MB (total) | 60 MB+67% |
| L2 Cache | 3 MB (per core)+50% | 2 MB (per core) |
| Process | 3 nm-57% | Intel 7 nm |
| Architecture | Arrow Lake-S (2024−2025) | Sapphire Rapids (2023−2024) |
| PassMark | 67,482 | 70,292+4% |
| Cinebench R23 Multi | 45,563 | — |
| Geekbench 6 Single | 3,200 | — |
| Geekbench 6 Multi | 22,563 | — |
Memory & Platform
The Core Ultra 9 285K uses the LGA1851 socket (PCIe 5.0), while the Xeon Gold 6448H uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6400 on the Core Ultra 9 285K versus 4800 on the Xeon Gold 6448H — the Xeon Gold 6448H supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6448H supports up to 4096 of RAM compared to 192 GB — 182.1% more capacity for professional workloads. Memory channels: 2 (Core Ultra 9 285K) vs 8 (Xeon Gold 6448H). PCIe lanes: 24 (Core Ultra 9 285K) vs 80 (Xeon Gold 6448H) — the Xeon Gold 6448H offers 56 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z890 (Core Ultra 9 285K) and C741 (Xeon Gold 6448H).
| Feature | Core Ultra 9 285K | Xeon Gold 6448H |
|---|---|---|
| Socket | LGA1851 | LGA4677 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-6400 | 4800+95900% |
| Max RAM Capacity | 192 GB+4915100% | 4096 |
| RAM Channels | 2 | 8+300% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 24 | 80+233% |
Advanced Features
Only the Core Ultra 9 285K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon Gold 6448H supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core Ultra 9 285K) vs VT-x, VT-d (Xeon Gold 6448H). The Core Ultra 9 285K includes integrated graphics (Intel Arc Graphics 64EU), while the Xeon Gold 6448H requires a dedicated GPU. Direct competitor: Core Ultra 9 285K rivals Ryzen 9 9950X; Xeon Gold 6448H rivals EPYC 9454.
| Feature | Core Ultra 9 285K | Xeon Gold 6448H |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel Arc Graphics 64EU | None |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | true | VT-x, VT-d |
Value Analysis
The Core Ultra 9 285K launched at $589 MSRP, while the Xeon Gold 6448H debuted at $3658.
| Feature | Core Ultra 9 285K | Xeon Gold 6448H |
|---|---|---|
| MSRP | $589-84% | $3658 |
| Avg Price (30d) | $550 | — |
| Release Date | 2024 | 2023 |
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