Arc Pro B70 32GB vs RX 7900 GRE 16GB for Local LLMs

The Arc Pro B70 32GB has about 6% more memory bandwidth (608 vs 576 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 6% faster on the Arc Pro B70 32GB. The Arc Pro B70 32GB fits more of the catalog at Q4/8K — 39 vs 24 of 69 models (32 vs 16 GB VRAM). Largest model that fits the Arc Pro B70 32GB but not the RX 7900 GRE 16GB: Qwen3.6-35B-A3B (36.0B). MSRP is $999 for the Arc Pro B70 32GB vs $549 for the RX 7900 GRE 16GB. MSRP is a launch list price, not live retail — Amazon prices move; click through for the current price. In the Q4/8K head-to-head below (44 shared models), the Arc Pro B70 32GB posts the higher tok/s in 29 rows vs 15. Methodology.

Spec comparison

	Arc Pro B70 32GB	RX 7900 GRE 16GB
Vendor	Intel	AMD
VRAM	32 GB	16 GB
Memory type	GDDR6	GDDR6
Memory bandwidth	608 GB/s	576 GB/s
TDP	225 W	260 W
MSRP (list)	$999	$549
Buy	Search Amazon (affiliate)	Search Amazon (affiliate)

MSRP is the launch list price, not live retail. Buy links are Amazon affiliate links — the price after you click is the live price.

Q4 / 8K head-to-head — top 15 of 44 shared models

Model	Params (B)	Arc Pro B70 32GB tok/s	Arc Pro B70 32GB fits	RX 7900 GRE 16GB tok/s	RX 7900 GRE 16GB fits	Winner
MiniCPM5-1B	1.08	358.2 est.	Yes	339.4 est.	Yes	Arc Pro B70 32GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16	30.0	129.0 est.	Yes	289.9 est.	No	RX 7900 GRE 16GB
Qwen3-30B-A3B-Instruct-2507	30.5	129.0 est.	Yes	263.7 est.	No	RX 7900 GRE 16GB
GLM-4.7-Flash	31.2	129.0 est.	Yes	253.1 est.	No	RX 7900 GRE 16GB
Qwen3.5-35B-A3B	34.7	129.0 est.	Yes	219.2 est.	No	RX 7900 GRE 16GB
qwen35b-a3b-fable-sft-abliterated	34.7	129.0 est.	Yes	208.1 est.	No	RX 7900 GRE 16GB
Ornith-1.0-35B	35.0	129.0 est.	Yes	204.9 est.	No	RX 7900 GRE 16GB
Qwen3.6-35B-A3B	36.0	129.0 est.	Yes	204.3 est.	No	RX 7900 GRE 16GB
Qwen3.5-2B	2.0	193.5 est.	Yes	183.3 est.	Yes	Arc Pro B70 32GB
Qwen3-Coder-Next	79.7	186.8 est.	No	44.2 est.	No	Arc Pro B70 32GB
Qwen3-Next-80B-A3B-Instruct	81.3	179.7 est.	No	42.5 est.	No	Arc Pro B70 32GB
DeepSeek-R1-0528-Qwen3-8B-layer-mix-bpw-3.8-mlx	2.3	168.2 est.	Yes	159.4 est.	Yes	Arc Pro B70 32GB
Llama-3.2-3B-Instruct	3.2	120.9 est.	Yes	114.5 est.	Yes	Arc Pro B70 32GB
gpt-oss-20b	21.5	107.5 est.	Yes	101.8 est.	Yes	Arc Pro B70 32GB
gemma-4-26B-A4B-it	25.2	101.8 est.	Yes	96.5 est.	Yes	Arc Pro B70 32GB

est. = bandwidth-based estimate; measured = curated real benchmark that overrides the estimate. Fits = weights + KV(8K) + 1 GB overhead ≤ 95% of VRAM.

Fit coverage at Q4 / 8K

	Arc Pro B70 32GB	RX 7900 GRE 16GB
Catalog models that fit	39 of 69	24 of 69
Largest exclusive fit	Qwen3.6-35B-A3B (36.0B)	—

Arc Pro B70 32GB details → · RX 7900 GRE 16GB details →