llamaperf

Intel Arc Pro B70 vs AMD RX 9070 XT 16GB for local LLMs

15 reports on the Intel Arc Pro B70 and 12 on the AMD RX 9070 XT 16GB

Which is faster for local LLMs?

On Qwen3 8B at 4-bit, the Intel Arc Pro B70 runs at 77.7 tokens per second (one run) and the AMD RX 9070 XT 16GB at 98.8 (one run). Those are community reports whose engines and settings differ, so the gap is a rough sign, not a controlled measure of the two cards. Memory bandwidth, which caps how fast a card can write, is 5% higher on the AMD RX 9070 XT 16GB (608 GB/s on the Intel Arc Pro B70, 640 on the AMD RX 9070 XT 16GB).

Intel Arc Pro B70
Memory
32GB
Memory bandwidth
608 GB/s
FP16 compute
183.5 TFLOPS
Reports
15
AMD RX 9070 XT 16GB
Memory
16GB
Memory bandwidth
640 GB/s
FP16 compute
195 TFLOPS
Reports
12

Measured on both

Median tokens per second from plain runs (one device, one request, no speculative decoding, the whole model in the device's memory) of the same model size at the same quant level. Engines and context lengths can still differ between the runs. How to read these

ModelIntel Arc Pro B70AMD RX 9070 XT 16GB
Qwen3 8B4-bit77.7one run98.8one run

Estimated by the calculator

The quant the calculator recommends for each card and its estimated speed at a 32,768-token context with 32 GB of system RAM, from memory bandwidth and the model's shape. Where a model was also measured above, the measurement wins.

ModelIntel Arc Pro B70AMD RX 9070 XT 16GB
Qwen3 8B20.9 t/sFP1654.2 t/sQ6_K
Qwen3.8 27B15.2 t/sQ6_K41.7 t/sQ2_K
Qwen3.8 125B · 6B active18.6 t/sQ2_K, experts in RAMdoesn't fit at these settings
Qwen3.6 35B · 3B active55.3 t/sQ5_K_M138.0 t/sQ2_K
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 27B15.2 t/sQ6_K41.7 t/sQ2_K
Gemma 4 26B · 4B active38.8 t/sQ6_K93.0 t/sQ3_K_S

Change the context, RAM or model in the calculator: Intel Arc Pro B70 · AMD RX 9070 XT 16GB

Every report on each card, with its source: Intel Arc Pro B70 · AMD RX 9070 XT 16GB

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