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NVIDIA · Ampere · 40 GB · Qwen3.8 27B · Q4_K_M: ~59 tok/s

NVIDIA A100 40GB SXM4

An A100 out of an HGX server, run on a Chinese SXM4-to-PCIe adapter board: 40 GB of HBM2 at 1.5 TB/s and full Ampere tensor cores for much less than the PCIe card. The board needs a big power supply and real airflow.

Watch Qwen3.8 27B stream at this machine's speed

Lowest price right now

$2,358.90

eBay · $2,349.95 + $8.95 shipping · $58 per GB · observed 2026-10-18 19:13 UTC

plus an SXM4-to-PCIe adapter, about $570 to $650

Buy the cheapest on eBay, $2,358.90

$2,349.95 + $8.95 shipping · Used · pcrecyclerva 27,240 · 99.7%

All 54 listings on eBay

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Price history

Tracking started today. The chart appears once there is a second day of data.

Where to buy

VendorPriceConditionObserved
eBay
cheapest active listing		 $2,358.90
$2,349.95 + $8.95 shipping		 new and used 2026-10-18 19:13 UTC Go to eBay

On eBay now

54 listings passed our filters at the last check. Cheapest delivered first. Seller reputation is feedback count and positive rate.

All 54 listings · Open the search on eBay

What it runs

For each model, grouped by vendor with the newest first: the largest quant that fits with 8K of context and the estimated speed for one user, at 8K and at 32K of context. On a card, a model too big for its memory can still run with part of the weights in system RAM; we assume 64 GB, and the speed shown accounts for it. The model you picked on the ladder is highlighted. Estimates from the spec sheet, not measurements: see how we estimate.

ModelQuantNeeds at 8KFitMax contextDecode at 8KAt 32KPrefill tok/s
DeepSeek
DeepSeek V4.1 Flash 552B-A16B Sep 2026Q4_K_M338 GBdoes not fit
DeepSeek V4 Flash 284B-A13B Jul 2026Q4_K_M175 GBdoes not fit
DeepSeek V3.1 671B-A37B Aug 2025Q4_K_M411 GBdoes not fit
Gemma
Gemma 4 12B May 2026Q8_014 GBfits128K+~79~77~4,600
Gemma 4 31B Mar 2026Q8_035 GBfits71K~30~29~1,800
Gemma 4 26B-A4B Mar 2026Q8_028 GBfits128K+~130~120~14,000
Gemma 3 27B Mar 2025Q8_031 GBfits112K~34~32~2,000
GLM
GLM-5.3 753B-A40B Aug 2026Q4_K_M462 GBdoes not fit
GLM-5.3 Flash 320B-A18B Aug 2026Q4_K_M197 GBdoes not fit
GLM-4.6 355B-A32B Sep 2025Q4_K_M221 GBdoes not fit
GLM-4.5 Air 106B-A12B Jul 2025IQ2_M39 GBfits12K~110~4,500
gpt-oss
gpt-oss-120b Aug 2025Q4_K_M73 GBruns with 34 GB in system RAM~24~22~5,400
gpt-oss-20b Aug 2025Q8_024 GBfits128K+~130~110~15,000
Llama
Llama 4 Scout 109B-A17B Apr 2025IQ2_M40 GBfits, short context7K~94~3,200
Llama 3.3 70B Dec 2024Q3_K_M39 GBfits11K~27~770
Llama 3.1 8B Jul 2024Q8_011 GBfits128K+~110~79~6,800
MiMo
MiMo V2.6 Pro 1.02T-A42B Sep 2026Q4_K_M624 GBdoes not fit
MiMo V2.6 Flash 309B-A15B Sep 2026Q4_K_M190 GBdoes not fit
Mistral
Mistral Medium 3.5 128B Mar 2026Q4_K_M83 GBruns with 43 GB in system RAM~0.9~0.8~210
Mistral Small 4 119B-A6.5B Mar 2026Q4_K_M79 GBruns with 39 GB in system RAM~16~10~4,200
Mistral Small 3.2 24B Jun 2025Q8_028 GBfits77K~38~33~2,300
Nemotron
Nemotron 3.5 Lightning 30B-A3B Aug 2026Q8_035 GBfits128K+~140~140~16,000
Qwen
Qwen3.8 Flash-Next 125B-A6B Aug 2026Q4_K_M78 GBruns with 38 GB in system RAM~20~19~4,500
Qwen3.8 27B Aug 2026 (your pick)Q8_031 GBfits128K+~35~33~2,000
Qwen3.6 27B Apr 2026Q8_031 GBfits128K+~35~33~2,000
Qwen3.6 35B-A3B Apr 2026Q8_039 GBfits66K~150~140~18,000
Qwen3.5 9B Feb 2026Q8_011 GBfits128K+~100~95~6,100
Qwen3 Coder 480B-A35B Jul 2025Q4_K_M296 GBdoes not fit
Qwen3 235B-A22B Jul 2025IQ2_M83 GBruns with 43 GB in system RAM~9.3~8.1~1,200
Qwen3 32B Apr 2025Q8_038 GBfits13K~27~1,700

Specifications

Memory
40 GB HBM2
Memory bandwidth
1,555 GB/s
Bus width
5120-bit
Shader cores
6,912
Tensor cores
432
FP32
19.5 TFLOPS
FP16 (dense)
312 TFLOPS
Power
400 W
Form factor
SXM4 module: needs an SXM4-to-PCIe adapter board and serious cooling
Interface
PCIe 4.0 x16
Architecture
Ampere
Launched
2020

Source: manufacturer specifications.

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