Question 1

Is the Arc A770 16GB or the RX 7600 XT 16GB better for local LLMs?

Accepted Answer

The Arc A770 16GB has about 94% more memory bandwidth (560 vs 288 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 94% faster on the Arc A770 16GB. Both fit the same number of catalog models at Q4/8K (25 of 61; 16 vs 16 GB VRAM). MSRP is $349 for the Arc A770 16GB vs $329 for the RX 7600 XT 16GB. MSRP is a launch list price, not live retail — Amazon prices move; click through for the current price.

Question 2

How much faster is the Arc A770 16GB than the RX 7600 XT 16GB for LLM inference?

Accepted Answer

On memory bandwidth the Arc A770 16GB leads by about 94% (560 vs 288 GB/s), and batch-1 decode tracks bandwidth. In the Q4/8K head-to-head on this page, the Arc A770 16GB wins 44 of 44 shared model rows and the RX 7600 XT 16GB wins 0.

Question 3

Which can run larger models, the Arc A770 16GB or the RX 7600 XT 16GB?

Accepted Answer

Neither — both fit 25 of 61 catalog models at Q4/8K (16 vs 16 GB VRAM).

	Arc A770 16GB	RX 7600 XT 16GB
Vendor	Intel	AMD
VRAM	16 GB	16 GB
Memory type	GDDR6	GDDR6
Memory bandwidth	560 GB/s	288 GB/s
TDP	225 W	190 W
MSRP (list)	$349	$329
Buy	Search Amazon (affiliate)	Search Amazon (affiliate)

Model	Params (B)	Arc A770 16GB tok/s	Arc A770 16GB fits	RX 7600 XT 16GB tok/s	RX 7600 XT 16GB fits	Winner
Qwen3-0.6B	0.8	445.5 est.	Yes	229.1 est.	Yes	Arc A770 16GB
gemma-3-1b-it	1.0	356.4 est.	Yes	183.3 est.	Yes	Arc A770 16GB
Llama-3.2-1B-Instruct	1.2	297.0 est.	Yes	152.7 est.	Yes	Arc A770 16GB
Qwen3-30B-A3B	30.5	257.2 est.	No	132.3 est.	No	Arc A770 16GB
Qwen3-Coder-30B-A3B-Instruct	30.5	257.2 est.	No	132.3 est.	No	Arc A770 16GB
Qwen3-30B-A3B-Instruct-2507	30.5	257.2 est.	No	132.3 est.	No	Arc A770 16GB
GLM-4.7-Flash	31.2	246.9 est.	No	127.0 est.	No	Arc A770 16GB
Qwen3-1.7B	2.0	178.2 est.	Yes	91.6 est.	Yes	Arc A770 16GB
Llama-3.2-3B-Instruct	3.2	111.4 est.	Yes	57.3 est.	Yes	Arc A770 16GB
gpt-oss-20b	21.5	99.0 est.	Yes	50.9 est.	Yes	Arc A770 16GB
Phi-4-mini-instruct	3.8	93.8 est.	Yes	48.2 est.	Yes	Arc A770 16GB
Phi-4-mini-reasoning	3.8	93.8 est.	Yes	48.2 est.	Yes	Arc A770 16GB
gemma-3-4b-it	4.3	91.4 est.	Yes	47.0 est.	Yes	Arc A770 16GB
Qwen3-4B-Instruct-2507	4.0	89.1 est.	Yes	45.8 est.	Yes	Arc A770 16GB
Qwen3-4B-Thinking-2507	4.0	89.1 est.	Yes	45.8 est.	Yes	Arc A770 16GB

Arc A770 16GB vs RX 7600 XT 16GB for Local LLMs

Spec comparison

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

Fit coverage at Q4 / 8K

	Arc A770 16GB	RX 7600 XT 16GB
Catalog models that fit	25 of 61	25 of 61
Largest exclusive fit	—	—