readygpu

NVIDIA RTX A6000 vs NVIDIA RTX PRO 4500 Blackwell

For running models locally, priced in the UK. At 32k context the first runs 65 models fully in memory, the second 61.

In short

The NVIDIA RTX A6000 has more memory for models: 48 GB against 32 GB. At 32k context the NVIDIA RTX A6000 runs 65 of the models we track fully in memory and the NVIDIA RTX PRO 4500 Blackwell 61; only the NVIDIA RTX A6000 holds Qwen 3.5 122B-A10B. On the models both run fully in memory, the NVIDIA RTX PRO 4500 Blackwell is about 1.2× as fast as the NVIDIA RTX A6000 (estimated, median across models). In the UK the NVIDIA RTX A6000 costs £3,999 at eBay (used) and the NVIDIA RTX PRO 4500 Blackwell £4,587 at eBay: the NVIDIA RTX A6000 is £588 cheaper.

Updated . Speeds are estimates; how they are worked out.

NVIDIA RTX A6000

£3,999

eBay, used (asking)

Add to build
NVIDIA RTX PRO 4500 Blackwell

£4,587

eBay

Add to build

Specifications

SpecNVIDIA RTX A6000NVIDIA RTX PRO 4500 Blackwell
GPURTX A6000RTX PRO 4500 Blackwell
Memory48 GB GDDR632 GB GDDR7
Memory bus384-bit256-bit
Memory bandwidth768 GB/s896 GB/s
FP16 compute38.71 TFLOPS54.94 TFLOPS
SoftwareCUDACUDA
Board power300 W200 W
PCIe generationGen 4Gen 5
PCIe lanesx16x16

What each runs

Estimated decode speed with the most precise quant that fits each one est.

ModelNVIDIA RTX A6000NVIDIA RTX PRO 4500 Blackwell
Qwen 3.8 27B15tok/sQ8_018tok/sQ8_0
Qwen 3.5 122B-A10B66tok/sUD-Q2_K_XLoffload
Qwen 3.6 27B15tok/sQ8_018tok/sQ8_0
Qwen3 Coder Next88tok/sQ4_K_Moffload
Gemma 4 31B13tok/sQ8_019tok/sQ6_K
Mistral Small 4 119B91tok/sUD-Q2_K_XLoffload
Qwen 3.6 35B-A3B75tok/sQ8_0101tok/sQ6_K
Qwen 3.5 27B15tok/sQ8_018tok/sQ8_0
Gemma 4 26B-A4B57tok/sQ8_066tok/sQ8_0
Qwen3 Next 80B-A3B107tok/sQ4_K_Moffload
Qwen 3.5 35B-A3B75tok/sQ8_0106tok/sQ6_K
GLM 4.7 Flash41tok/sQ8_057tok/sQ6_K
Devstral Small 2 24B16tok/sQ8_018tok/sQ8_0
Nemotron 3.5 Lightning 30B-A3B80tok/sUD-Q6_K_XL107tok/sUD-Q5_K_M
Kimi Linear 48B-A3B103tok/sQ6_K156tok/sQ4_K_M
gpt-oss 20B88tok/sMXFP4103tok/sMXFP4
Qwen3 Coder 30B-A3B45tok/sQ8_059tok/sQ6_K
Qwen3 32B11tok/sQ8_018tok/sQ5_K_M
Gemma 4 12B35tok/sQ8_041tok/sQ8_0
Qwen 3.5 9B45tok/sQ8_052tok/sQ8_0
Mistral Small 3.2 24B16tok/sQ8_018tok/sQ8_0
Gemma 3 27B15tok/sQ8_018tok/sQ8_0
DeepSeek R1 Distill Qwen 32B11tok/sQ8_017tok/sQ5_K_M
Ministral 3 14B24tok/sQ8_028tok/sQ8_0
Qwen3 14B23tok/sQ8_026tok/sQ8_0
DeepSeek R1 0528 Qwen3 8B35tok/sQ8_041tok/sQ8_0
Qwen3 8B35tok/sQ8_041tok/sQ8_0
Phi-4 14B21tok/sQ8_025tok/sQ8_0
Qwen 3.5 4B85tok/sQ8_099tok/sQ8_0
Ministral 3 8B35tok/sQ8_041tok/sQ8_0
Granite 4.2 8B32tok/sQ8_038tok/sQ8_0
Gemma 4 E4B52tok/sQ8_061tok/sQ8_0
LFM2.5 8B-A1B107tok/sQ8_0125tok/sQ8_0
Llama 3.1 8B44tok/sQ6_K51tok/sQ6_K
Qwen2.5 0.5B510tok/sQ8_0595tok/sQ8_0
Qwen3.5 0.8B386tok/sQ8_0450tok/sQ8_0
Qwen3.5 2B256tok/sQ5_K_M299tok/sQ5_K_M
DeepSeek R1 Distill Qwen 1.5B168tok/sQ8_0196tok/sQ8_0
MiniCPM5 2B116tok/sQ8_0136tok/sQ8_0
Spark X2.5 4B111tok/smlx-4bit129tok/smlx-4bit
LFM2.5 2.6B97tok/sQ8_0114tok/sQ8_0
LFM2.5 VL 3B97tok/sQ8_0114tok/sQ8_0
Mellum2.1 12B A2.5B Thinking90tok/sQ8_0105tok/sQ8_0
FrogNano 4B 260983tok/sQ8_097tok/sQ8_0
granite vision 4.1 4b76tok/sQ8_088tok/sQ8_0
granite 4.2 3b72tok/sQ8_085tok/sQ8_0
Kimi VL A3B Thinking 250669tok/sQ8_081tok/sQ8_0
Kimi VL A3B67tok/smlx-8bit78tok/smlx-8bit
Ministral 3 3B Instruct 251267tok/sQ8_078tok/sQ8_0
LFM2.5 24B A2B59tok/sQ8_069tok/sQ8_0
GLM 4 9B 041450tok/smlx-5bit58tok/smlx-5bit
DeepSeek R1 Distill Qwen 7B48tok/sQ8_056tok/sQ8_0
GLM 4.6V Flash42tok/sQ8_049tok/sQ8_0
DeepSeek R1 Distill Llama 8B37tok/sQ8_043tok/sQ8_0
GLM 4.1V 9B Thinking36tok/smlx-8bit42tok/smlx-8bit
Ministral 3 8B Reasoning 251235tok/sQ8_041tok/sQ8_0
Ministral 3 14B Reasoning 251224tok/sQ8_028tok/sQ8_0
DeepSeek R1 Distill Qwen 14B22tok/sQ8_025tok/sQ8_0
Qwen3.8 27B OBLITERATED21tok/smlx-4bit24tok/smlx-4bit
Devstral Small 250716tok/sQ8_018tok/sQ8_0
Magistral Small 250616tok/sQ8_018tok/sQ8_0
Magistral Small 250716tok/sQ8_018tok/sQ8_0
Magistral Small 250916tok/sQ8_018tok/sQ8_0
Muse Glimmer 30B15tok/sQ8_023tok/sQ6_K
granite 4.2 30b12tok/sQ8_019tok/sQ5_K_M
Nemotron 3 Super 120B-A12Boffloadoffload
gpt-oss 120Boffloadwon't run
GLM 4.5 Airoffloadoffload
Llama 3.3 70Boffloadoffload
DeepSeek R1 Distill Llama 70Boffloadoffload
GLM 4.5Voffloadwon't run
GLM 4.6Voffloadwon't run
Kimi Dev 72Boffloadwon't run
DeepSeek V4 Flashwon't runwon't run
GLM 5.3 Flashwon't runwon't run
Qwen 3.8 Flash Nextwon't runwon't run
MiniMax M2.7won't runwon't run
DeepSeek R1won't runwon't run
DeepSeek R1 0528won't runwon't run
DeepSeek R1 Zerowon't runwon't run
DeepSeek V3won't runwon't run
DeepSeek V3 0324won't runwon't run
DeepSeek V3.1won't runwon't run
DeepSeek V3.1 Terminuswon't runwon't run
DeepSeek V3.2won't runwon't run
DeepSeek V4 Flash 0731won't runwon't run
DeepSeek V4 Flash Vision Expwon't runwon't run
Devstral 2 123B Instruct 2512won't runwon't run
GLM 4.5won't runwon't run
GLM 4.6won't runwon't run
GLM 4.7won't runwon't run
GLM 5won't runwon't run
GLM 5.1won't runwon't run
GLM 5.2won't runwon't run
GLM 5.3won't runwon't run
Kimi K2won't runwon't run
Kimi K2 Instruct 0905won't runwon't run
Kimi K2 Thinkingwon't runwon't run
Kimi K2.5won't runwon't run
MiniMax M2won't runwon't run
MiniMax M2.1won't runwon't run
MiniMax M2.5won't runwon't run
MiniMax M3won't runwon't run
Mistral Medium 3.5 128Bwon't runwon't run

Questions

Which is better for local AI, the NVIDIA RTX A6000 or the NVIDIA RTX PRO 4500 Blackwell?
Choose the NVIDIA RTX A6000 to run bigger models. Choose the NVIDIA RTX PRO 4500 Blackwell for speed. Choose the NVIDIA RTX A6000 to spend less.
Which can run bigger models, the NVIDIA RTX A6000 or the NVIDIA RTX PRO 4500 Blackwell?
At 32k context the NVIDIA RTX A6000 runs 65 of the models we track fully in memory and the NVIDIA RTX PRO 4500 Blackwell 61; only the NVIDIA RTX A6000 holds Qwen 3.5 122B-A10B.
Which is faster for local AI, the NVIDIA RTX A6000 or the NVIDIA RTX PRO 4500 Blackwell?
On the models both run fully in memory, the NVIDIA RTX PRO 4500 Blackwell is about 1.2× as fast as the NVIDIA RTX A6000 (estimated, median across models).
What is the price difference between the NVIDIA RTX A6000 and the NVIDIA RTX PRO 4500 Blackwell?
In the UK the NVIDIA RTX A6000 costs £3,999 at eBay (used) and the NVIDIA RTX PRO 4500 Blackwell £4,587 at eBay: the NVIDIA RTX A6000 is £588 cheaper.

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