RTX A6000 48GB vs Titan V 12GB for Local LLMs

The RTX A6000 48GB has about 18% more memory bandwidth (768 vs 652.8 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 18% faster on the RTX A6000 48GB. The RTX A6000 48GB fits more of the catalog at Q4/8K — 41 vs 18 of 69 models (48 vs 12 GB VRAM). Largest model that fits the RTX A6000 48GB but not the Titan V 12GB: Qwen3-Next-80B-A3B-Instruct (81.3B). MSRP is $4,500 for the RTX A6000 48GB vs $2,999 for the Titan V 12GB. 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 (41 shared models), the RTX A6000 48GB posts the higher tok/s in 31 rows vs 10. Methodology.

Spec comparison

	RTX A6000 48GB	Titan V 12GB
Vendor	NVIDIA	NVIDIA
VRAM	48 GB	12 GB
Memory type	GDDR6	HBM2
Memory bandwidth	768 GB/s	652.8 GB/s
TDP	300 W	250 W
MSRP (list)	$4,500	$2,999
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 41 shared models

Model	Params (B)	RTX A6000 48GB tok/s	RTX A6000 48GB fits	Titan V 12GB tok/s	Titan V 12GB fits	Winner
MiniCPM5-1B	1.08	452.5 est.	Yes	384.6 est.	Yes	RTX A6000 48GB
gpt-oss-20b	21.5	135.8 est.	Yes	257.5 est.	No	Titan V 12GB
Qwen3.5-2B	2.0	244.4 est.	Yes	207.7 est.	Yes	RTX A6000 48GB
DeepSeek-R1-0528-Qwen3-8B-layer-mix-bpw-3.8-mlx	2.3	212.5 est.	Yes	180.6 est.	Yes	RTX A6000 48GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16	30.0	162.9 est.	Yes	184.6 est.	No	Titan V 12GB
gemma-4-26B-A4B-it	25.2	128.6 est.	Yes	183.6 est.	No	Titan V 12GB
Qwen3-30B-A3B-Instruct-2507	30.5	162.9 est.	Yes	167.9 est.	No	Titan V 12GB
Qwen3.6-35B-A3B	36.0	162.9 est.	Yes	130.1 est.	No	RTX A6000 48GB
Qwen3.5-35B-A3B	34.7	162.9 est.	Yes	139.6 est.	No	RTX A6000 48GB
GLM-4.7-Flash	31.2	162.9 est.	Yes	161.2 est.	No	RTX A6000 48GB
Qwen3-Coder-Next	79.7	162.9 est.	Yes	28.1 est.	No	RTX A6000 48GB
Ornith-1.0-35B	35.0	162.9 est.	Yes	130.5 est.	No	RTX A6000 48GB
Qwen3-Next-80B-A3B-Instruct	81.3	162.9 est.	Yes	27.1 est.	No	RTX A6000 48GB
qwen35b-a3b-fable-sft-abliterated	34.7	162.9 est.	Yes	132.5 est.	No	RTX A6000 48GB
Llama-3.2-3B-Instruct	3.2	152.7 est.	Yes	129.8 est.	Yes	RTX A6000 48GB

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

	RTX A6000 48GB	Titan V 12GB
Catalog models that fit	41 of 69	18 of 69
Largest exclusive fit	Qwen3-Next-80B-A3B-Instruct (81.3B)	—

RTX A6000 48GB details → · Titan V 12GB details →