Ryzen 9 3900X vs Core Ultra 5 245T
Ryzen 9 3900X
Core Ultra 5 245T
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 Ryzen 9 3900X
Performance Per Dollar Core Ultra 5 245T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 3900X | Core Ultra 5 245T |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($441) | ✅ More affordable ($270) |
| Longevity | ✨ Modern (Matisse (Zen 2) (2019−2020) / 7 nm, 12 nm) | ✨ Modern (Arrow Lake-S (2024−2025) / 3 nm) |
💎 Value Proposition
| Insight | Ryzen 9 3900X | Core Ultra 5 245T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+63%) |
| Upfront Cost | ⚠️ Higher cost ($441) | ✅ More affordable ($270) |
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 Ryzen 9 3900X and Core Ultra 5 245T
Ryzen 9 3900X
The Ryzen 9 3900X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 12 cores and 24 threads. Base frequency is 3.8 GHz, with boost up to 4.6 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 125 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 32,517 points. Launch price was $499.
Core Ultra 5 245T
The Core Ultra 5 245T is manufactured by Intel. It was released in 7 January 2025 (less than a year ago). It is based on the Arrow Lake-S (2024−2025) architecture. It features 14 cores and 14 threads. Base frequency is 2.2 GHz, with boost up to 5.1 GHz. L3 cache: 24 MB (total). L2 cache: 3 MB (per core). Built on 3 nm process technology. Socket: LGA1851. Thermal design power (TDP): 65 Watt. Memory support: DDR5-6400. Passmark benchmark score: 32,444 points. Launch price was $270.
Processing Power
The Ryzen 9 3900X packs 12 cores / 24 threads, while the Core Ultra 5 245T offers 14 cores / 14 threads — the Core Ultra 5 245T has 2 more cores. Boost clocks reach 4.6 GHz on the Ryzen 9 3900X versus 5.1 GHz on the Core Ultra 5 245T — a 10.3% clock advantage for the Core Ultra 5 245T (base: 3.8 GHz vs 2.2 GHz). The Ryzen 9 3900X uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the Core Ultra 5 245T uses Arrow Lake-S (2024−2025) (3 nm). In PassMark, the Ryzen 9 3900X scores 32,517 against the Core Ultra 5 245T's 32,444 — a 0.2% lead for the Ryzen 9 3900X. L3 cache: 64 MB on the Ryzen 9 3900X vs 24 MB (total) on the Core Ultra 5 245T.
| Feature | Ryzen 9 3900X | Core Ultra 5 245T |
|---|---|---|
| Cores / Threads | 12 / 24 | 14 / 14+17% |
| Boost Clock | 4.6 GHz | 5.1 GHz+11% |
| Base Clock | 3.8 GHz+73% | 2.2 GHz |
| L3 Cache | 64 MB+167% | 24 MB (total) |
| L2 Cache | 512K (per core) | 3 MB (per core)+500% |
| Process | 7 nm, 12 nm | 3 nm-57% |
| Architecture | Matisse (Zen 2) (2019−2020) | Arrow Lake-S (2024−2025) |
| PassMark | 32,517 | 32,444 |
| Geekbench 6 Single | 1,300 | — |
| Geekbench 6 Multi | 12,000 | — |
Memory & Platform
The Ryzen 9 3900X uses the AM4 socket (PCIe 4.0), while the Core Ultra 5 245T uses LGA1851 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 3900X versus DDR5-6400 on the Core Ultra 5 245T — the Core Ultra 5 245T supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core Ultra 5 245T supports up to 256 GB of RAM compared to 128 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 9 3900X) vs 20 (Core Ultra 5 245T) — the Ryzen 9 3900X offers 4 more lanes for additional GPUs or NVMe drives.
| Feature | Ryzen 9 3900X | Core Ultra 5 245T |
|---|---|---|
| Socket | AM4 | LGA1851 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | DDR4-3200 | DDR5-6400+25% |
| Max RAM Capacity | 128 GB | 256 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 24+20% | 20 |
Advanced Features
Only the Ryzen 9 3900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: AMD-V (Ryzen 9 3900X) vs VT-x, VT-d (Core Ultra 5 245T). The Core Ultra 5 245T includes integrated graphics (Arc Xe-LPG 64EU), while the Ryzen 9 3900X requires a dedicated GPU. Primary use case: Ryzen 9 3900X targets Workstation, Core Ultra 5 245T targets Desktop Low Power.
| Feature | Ryzen 9 3900X | Core Ultra 5 245T |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | Arc Xe-LPG 64EU |
| Unlocked | Yes | No |
| AVX-512 | No | No |
| Virtualization | AMD-V | VT-x, VT-d |
| Target Use | Workstation | Desktop Low Power |
Value Analysis
The Ryzen 9 3900X launched at $499 MSRP, while the Core Ultra 5 245T debuted at $270. At current prices ($441 vs $270), the Core Ultra 5 245T is $171 cheaper. In terms of value (PassMark points per dollar), the Ryzen 9 3900X delivers 73.7 pts/$ vs 120.2 pts/$ for the Core Ultra 5 245T — making the Core Ultra 5 245T the 47.9% better value option.
| Feature | Ryzen 9 3900X | Core Ultra 5 245T |
|---|---|---|
| MSRP | $499 | $270-46% |
| Avg Price (30d) | $441 | $270-39% |
| Performance per Dollar | 73.7 | 120.2+63% |
| Release Date | 2019 | 2025 |
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