Dual used RTX 3090 48GB

Parts

Compatibility: No problems found.Est. load 895 W of 1200 W · spikes to 1315 W

ComponentSelectionPriceWhereBuy
GPUNVIDIA GeForce RTX 3090

24 GB · 936 GB/s · 350 W

$1,600eBayBuy
GPU 2NVIDIA GeForce RTX 3090

24 GB · 936 GB/s · 350 W

$1,600eBayBuy
CPUAMD Ryzen 9 9900X

AM5 · 12 cores · 24 PCIe lanes

$300eBayBuy
MotherboardASUS ProArt X870E-Creator WiFi

AM5 · DDR5 · ATX

$539eBayBuy
MemoryCorsair Vengeance 128GB (4×32GB) DDR5-5200

128 GB · DDR5-5200

Not sold now–
Power supplySeasonic Vertex GX-1200 1200W

1200 W · ATX 3

$324eBayBuy
CaseFractal Design Torrent

GPUs up to 461 mm

$200eBayBuy
StorageSamsung 990 Pro 2TB

2000 GB NVME

$300eBayBuy
Total + 1 without a price$4,863
  • Note: Check the power connectors on the card you buy: this power supply has 1 12V-2x6 and 3 8-pin PCIe connectors.
  • Note: The second x16 slot is 3 slots below the first: choose cards no thicker than 3 slots, or the top card covers it.
  • Note: Fractal Design Torrent fits graphics cards up to 461 mm: check the length of the card you buy.

What this build runs

The most precise quant that fits, at 8k context. Estimates, not measurements.

ModelQuantFitsMemoryMax contextDecode @8kPrefillGood for
Qwen 3.8 27B

Alibaba Qwen

Q8_0fits28.8 GB256k

20tok/sest.

559 tok/schat, long documents
Qwen 3.5 122B-A10B

Alibaba Qwen

UD-Q2_K_XLfits40.4 GB224k256k with q8 cache

94tok/sest.

1478 tok/schat, coding, agents, long documents
Qwen 3.6 27B

Alibaba Qwen

Q8_0fits28.4 GB256k

20tok/sest.

559 tok/schat, long documents
Qwen3 Coder Next

Alibaba Qwen

Q4_K_Mfits46.6 GB14k23k with q8 cache

132tok/sest.

3735 tok/schat, coding, agents, long documents
Gemma 4 31B

Google

Q8_0fits32.9 GB172k256k with q8 cache

17tok/sest.

487 tok/schat
Mistral Small 4 119B

Mistral AI

UD-Q2_K_XLfits38.8 GB296k471k with q8 cache

136tok/sest.

1932 tok/schat, coding, agents, long documents
Qwen 3.6 35B-A3B

Alibaba Qwen

Q8_0fits35.7 GB256k

105tok/sest.

4789 tok/schat, coding, agents, long documents
Qwen 3.5 27B

Alibaba Qwen

Q8_0fits28.4 GB256k

20tok/sest.

559 tok/schat, long documents
Gemma 4 26B-A4B

Google

Q8_0fits26.5 GB256k

77tok/sest.

3649 tok/schat, coding, agents, long documents
GLM 4.5 Air

Z.ai

Q2_Kfits44.8 GB18k34k with q8 cache

41tok/sest.

737 tok/schat
Qwen3 Next 80B-A3B

Alibaba Qwen

Q4_K_Mfits46.6 GB15k24k with q8 cache

169tok/sest.

4695 tok/schat, coding, agents, long documents
Qwen 3.5 35B-A3B

Alibaba Qwen

Q8_0fits35.7 GB256k

105tok/sest.

4789 tok/schat, coding, agents, long documents
GLM 4.7 Flash

Z.ai

Q8_0fits31.2 GB198k

61tok/sest.

2680 tok/schat, coding, agents, long documents
Devstral Small 2 24B

Mistral AI

Q8_0fits25.7 GB137k251k with q8 cache

22tok/sest.

630 tok/schat
Nemotron 3.5 Lightning 30B-A3B

NVIDIA

UD-Q6_K_XLfits33.8 GB256k

102tok/sest.

4990 tok/schat, coding, agents, long documents
Kimi Linear 48B-A3B

Moonshot AI

Q6_Kfits38.9 GB588k802k with q8 cache

135tok/sest.

4552 tok/schat, coding, long documents
gpt-oss 20B

OpenAI

MXFP4fits12.6 GB128k

132tok/sest.

3466 tok/schat, coding, agents, long documents
Qwen3 Coder 30B-A3B

Alibaba Qwen

Q8_0fits32.1 GB155k256k with q8 cache

87tok/sest.

3465 tok/schat, coding, agents, long documents
Qwen3 32B

Alibaba Qwen

Q8_0fits35.6 GB40k

16tok/sest.

431 tok/schat
Gemma 4 12B

Google

Q8_0fits13.4 GB256k

44tok/sest.

1272 tok/schat, coding, long documents
Qwen 3.5 9B

Alibaba Qwen

Q8_0fits10.3 GB256k

59tok/sest.

1610 tok/schat, coding, long documents
Mistral Small 3.2 24B

Mistral AI

Q8_0fits25.7 GB128k

22tok/sest.

630 tok/schat
Gemma 3 27B

Google

Q8_0fits28.9 GB128k

20tok/sest.

566 tok/schat
DeepSeek R1 Distill Qwen 32B

DeepSeek

Q8_0fits35.6 GB51k95k with q8 cache

16tok/sest.

451 tok/schat
Llama 3.3 70B

Meta

Q4_K_Mfits43.2 GB19k35k with q8 cache

13tok/sest.

210 tok/s–
Ministral 3 14B

Mistral AI

Q8_0fits15.8 GB199k256k with q8 cache

37tok/sest.

1045 tok/schat, coding, long documents
Qwen3 14B

Alibaba Qwen

Q8_0fits17.0 GB40k

34tok/sest.

971 tok/schat, coding, long documents
DeepSeek R1 0528 Qwen3 8B

DeepSeek

Q8_0fits10.4 GB128k

59tok/sest.

1700 tok/schat, coding, long documents
Qwen3 8B

Alibaba Qwen

Q8_0fits10.4 GB40k

59tok/sest.

1700 tok/schat, coding, long documents
Phi-4 14B

Microsoft

Q8_0fits17.2 GB16k

34tok/sest.

978 tok/schat, coding
Qwen 3.5 4B

Alibaba Qwen

Q8_0fits5.6 GB256k

121tok/sest.

3242 tok/schat, coding, long documents
Ministral 3 8B

Mistral AI

Q8_0fits10.6 GB256k

57tok/sest.

1588 tok/schat, coding, long documents
Granite 4.2 8B

IBM

Q8_0fits11.1 GB128k

54tok/sest.

1576 tok/schat, coding, agents, long documents
Gemma 4 E4B

Google

Q8_0fits9.0 GB128k

69tok/sest.

1951 tok/schat, coding, long documents
LFM2.5 8B-A1B

Liquid AI

Q8_0fits9.9 GB125k

237tok/sest.

11389 tok/schat, coding, long documents
Llama 3.1 8B

Meta

Q6_Kfits8.3 GB128k

76tok/sest.

1755 tok/schat, coding, long documents
Qwen2.5 0.5B

Alibaba Qwen

Q8_0fits1.7 GB32k

919tok/sest.

23836 tok/schat, coding, long documents
Qwen3.5 0.8B

Alibaba Qwen

Q8_0fits2.0 GB256k

623tok/sest.

16400 tok/schat, coding, agents, long documents
Qwen3.5 2B

Alibaba Qwen

Q5_K_Mfits2.6 GB256k

373tok/sest.

6727 tok/schat, coding, agents, long documents
DeepSeek R1 Distill Qwen 1.5B

DeepSeek

Q8_0fits3.1 GB128k

273tok/sest.

7502 tok/schat, coding, long documents
MiniCPM5 2B

openbmb

Q8_0fits4.0 GB128k

191tok/sest.

4959 tok/schat, coding, agents, long documents
LFM2.5 2.6B

Liquid AI

Q8_0fits4.3 GB128k

172tok/sest.

4991 tok/schat, coding, agents, long documents
LFM2.5 VL 3B

Liquid AI

Q8_0fits4.3 GB32k

172tok/sest.

4405 tok/schat, coding, agents, long documents
granite vision 4.1 4b

IBM

Q8_0fits5.1 GB128k

135tok/sest.

3303 tok/schat, coding, long documents
granite 4.2 3b

IBM

Q8_0fits5.4 GB128k

127tok/sest.

3551 tok/schat, coding, agents, long documents
LFM2.5 24B A2B

Liquid AI

Q8_0fits25.5 GB128k

124tok/sest.

5981 tok/schat, coding, agents, long documents
Mellum2.1 12B A2.5B Thinking

JetBrains

Q8_0fits13.3 GB128k

123tok/sest.

5488 tok/schat, coding, agents, long documents
Kimi VL A3B

Moonshot AI

mlx-8bitfits18.0 GB128k

99tok/sest.

4626 tok/schat, coding, agents, long documents
DeepSeek R1 Distill Qwen 7B

DeepSeek

Q8_0fits9.1 GB128k

68tok/sest.

1893 tok/schat, coding, long documents
DeepSeek R1 Distill Llama 8B

DeepSeek

Q8_0fits10.1 GB128k

60tok/sest.

1755 tok/schat, coding, long documents
Ministral 3 8B Reasoning 2512

Mistral AI

Q8_0fits10.6 GB256k

57tok/sest.

1588 tok/schat, coding, agents, long documents
GLM 4.6V Flash

Z.ai

Q8_0fits10.8 GB128k

56tok/sest.

1373 tok/schat, coding, agents, long documents
GLM 4.1V 9B Thinking

Z.ai

mlx-8bitfits12.4 GB64k

48tok/sest.

1373 tok/schat, coding, long documents
DeepSeek R1 Distill Qwen 14B

DeepSeek

Q8_0fits17.3 GB128k

34tok/sest.

952 tok/schat, coding
Devstral Small 2507

Mistral AI

Q8_0fits25.7 GB128k

22tok/sest.

641 tok/schat
Magistral Small 2506

Mistral AI

Q8_0fits25.7 GB40k

22tok/sest.

641 tok/schat
Magistral Small 2507

Mistral AI

Q8_0fits25.7 GB40k

22tok/sest.

641 tok/schat
Magistral Small 2509

Mistral AI

Q8_0fits25.7 GB128k

22tok/sest.

630 tok/schat
granite 4.2 30b

IBM

Q8_0fits32.1 GB65k120k with q8 cache

17tok/sest.

508 tok/schat
DeepSeek R1 Distill Llama 70B

DeepSeek

Q4_K_Mfits43.2 GB19k35k with q8 cache

13tok/sest.

210 tok/s–
DeepSeek V4 Flash

DeepSeek

UD-Q2_K_XLoffload92.0 GB–

7tok/sest.

351 tok/s–
GLM 5.3 Flash

Z.ai

UD-Q2_K_XLoffload102.6 GB–

6tok/sest.

341 tok/s–
Qwen 3.8 Flash Next

Alibaba Qwen

UD-Q2_K_XLoffload74.9 GB–

3tok/sest.

198 tok/s–
MiniMax M2.7

MiniMax

UD-Q2_K_XLoffload73.2 GB–

13tok/sest.

881 tok/s–
gpt-oss 120B

OpenAI

Q4_K_Moffload59.9 GB–

30tok/sest.

2171 tok/schat, coding
Nemotron 3 Super 120B-A12B

NVIDIA

UD-Q2_K_XLoffload52.3 GB–

29tok/sest.

1219 tok/schat, coding, long documents
GLM 4.5V

Z.ai

Q4_K_Moffload61.8 GB–

10tok/sest.

719 tok/s–
GLM 4.6V

Z.ai

Q4_K_Moffload68.2 GB–

7tok/sest.

683 tok/s–
MiniMax M2.5

MiniMax

MXFP4offload118.4 GB–

6tok/sest.

715 tok/s–
MiniMax M2

MiniMax

Q4_K_Moffload131.9 GB–

5tok/sest.

688 tok/s–
MiniMax M2.1

MiniMax

Q4_K_Moffload131.9 GB–

5tok/sest.

688 tok/s–
DeepSeek V4 Flash 0731

DeepSeek

MXFP4offload147.5 GB–

2tok/sest.

208 tok/s–
DeepSeek V4 Flash Vision Exp

DeepSeek

MXFP4offload156.2 GB–

2tok/sest.

202 tok/s–
Mistral Medium 3.5 128B

Mistral AI

Q4_K_Moffload73.7 GB–

2tok/sest.

91 tok/s–
Devstral 2 123B Instruct 2512

Mistral AI

Q8_0offload127.6 GB–

1tok/sest.

74 tok/s–
DeepSeek R1

DeepSeek

Q4_K_Mwon't run378.3 GB––––
DeepSeek R1 0528

DeepSeek

Q4_K_Mwon't run378.8 GB––––
DeepSeek V3 0324

DeepSeek

Q4_K_Mwon't run378.3 GB––––
DeepSeek V3.1

DeepSeek

Q4_K_Mwon't run379.2 GB––––
DeepSeek V3.2

DeepSeek

Q4_K_Mwon't run379.2 GB––––
GLM 4.7

Z.ai

Q4_K_Mwon't run205.6 GB––––
GLM 5.1

Z.ai

MXFP4won't run421.8 GB––––
GLM 5.2

Z.ai

UD-Q4_K_Mwon't run435.7 GB––––
GLM 5.3

Z.ai

Q8_0won't run748.2 GB––––
Kimi K2

Moonshot AI

Q4_K_Mwon't run579.8 GB––––
Kimi K2 Instruct 0905

Moonshot AI

Q4_K_Mwon't run580.3 GB––––
Kimi K2 Thinking

Moonshot AI

Q4_K_Mwon't run580.3 GB––––
Kimi K2.5

Moonshot AI

Q4_K_Mwon't run580.3 GB––––
MiniMax M3

MiniMax

UD-Q4_K_Mwon't run248.8 GB––––