Radeon AI PRO R9700 vs Arc Pro B70
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Our verdict
Editorial opinionOur verdict
The two cheapest new 32 GB cards. The R9700 is slightly faster (645 vs 608 GB/s) and AMD's software is more mature for llama.cpp and Ollama today; the Arc Pro B70 is usually cheaper. Our pick today is the R9700.
| Factual data | Radeon AI PRO R9700 | Arc Pro B70 |
|---|---|---|
| Memory (largest) | 32 GB | 32 GB |
| Usable for models | 32 GB | 32 GB |
| Bandwidth | 645 GB/sMore | 608 GB/s |
| Largest popular model at 4-bit | Qwen3.6 35B A3B | Qwen3.6 35B A3B |
| Price from | $1,550 | $1,268Advantage |
| Price per GB | $48 | $40Advantage |
| Power | 300 W | 230 W |
| Compute stack | ROCm / Vulkan | SYCL / Vulkan |
Which models each one runs
Popular models at Q4_K_M with a 32K-token context. Memory needed from real model files; speed is the theoretical ceiling.
| Model | Radeon AI PRO R9700 | Arc Pro B70 |
|---|---|---|
| Qwen3 1.7B | Runs≤ 581 tok/s | Runs≤ 548 tok/s |
| Qwen3.5 9B | Runs≤ 113 tok/s | Runs≤ 107 tok/s |
| Gemma 4 12B | Runs≤ 91 tok/s | Runs≤ 85 tok/s |
| gpt-oss-20b | Runs≤ 322 tok/s | Runs≤ 304 tok/s |
| Qwen3.6 27B | Runs≤ 38 tok/s | Runs≤ 36 tok/s |
| Qwen3.6 35B A3B | Runs≤ 350 tok/s | Runs≤ 330 tok/s |
| Llama 3.3 70B | Not enough memory | Not enough memory |
| gpt-oss-120b | Partly in system RAM | Partly in system RAM |
| Qwen3.5 122B A10B | Partly in system RAM | Partly in system RAM |
| Qwen3.5 397B A17B | Partly in system RAM | Partly in system RAM |
Speed ceilings are theoretical; see each page for measured results.