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AMD · RDNA 3 · 24 GB · Qwen3.8 27B · Q4_K_M: ~29 tok/s

AMD Radeon RX 7900 XTX

24 GB at 960 GB/s, the same memory and nearly the bandwidth of an RTX 4090, for less. Runs well in llama.cpp on ROCm or Vulkan; CUDA-only tools are the catch.

Lowest price right now

$900

eBay · plus shipping · $37 per GB · observed 2026-10-14 22:19 UTC

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Where to buy

VendorPriceConditionObserved
eBay
cheapest active listing		 $900
plus shipping		 new and used 2026-10-14 22:19 UTC Go to eBay
Amazon
price tracking coming		 price on Amazon new Go to Amazon

On eBay now

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

All 59 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. The model you picked on the ladder is highlighted. Estimates from the spec sheet, not measurements: see how we estimate.

ModelQuantNeeds at 8KFitMax contextDecode tok/sPrefill 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+~38~1,300
Gemma 4 31B Mar 2026Q5_K_M24 GBfits8K~22~500
Gemma 4 26B-A4B Mar 2026Q6_K22 GBfits87K~150~4,000
Gemma 3 27B Mar 2025Q5_K_M22 GBfits36K~25~560
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 2025Q4_K_M68 GBdoes not fit
gpt-oss
gpt-oss-120b Aug 2025Q4_K_M73 GBdoes not fit
gpt-oss-20b Aug 2025Q6_K19 GBfits104K~160~4,300
Llama
Llama 4 Scout 109B-A17B Apr 2025Q4_K_M70 GBdoes not fit
Llama 3.3 70B Dec 2024Q4_K_M47 GBdoes not fit
Llama 3.1 8B Jul 2024Q8_011 GBfits104K~57~1,900
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 GBdoes not fit
Mistral Small 4 119B-A6.5B Mar 2026Q4_K_M79 GBdoes not fit
Mistral Small 3.2 24B Jun 2025Q6_K23 GBfits16K~24~640
Qwen
Qwen3.8 Flash-Next 125B-A6B Aug 2026Q4_K_M78 GBdoes not fit
Qwen3.8 27B Aug 2026 (your pick)Q5_K_M21 GBfits49K~25~570
Qwen3.6 27B Apr 2026Q5_K_M21 GBfits49K~25~570
Qwen3.6 35B-A3B Apr 2026Q4_K_M23 GBfits54K~260~5,100
Qwen3 Coder 480B-A35B Jul 2025Q4_K_M296 GBdoes not fit
Qwen3 235B-A22B Jul 2025Q4_K_M146 GBdoes not fit
Qwen3 32B Apr 2025Q4_K_M24 GBfits9K~24~470

Specifications

Memory
24 GB GDDR6
Memory bandwidth
960 GB/s
Bus width
384-bit
Shader cores
6,144
Tensor cores
96
FP32
61.4 TFLOPS
FP16 (dense)
123 TFLOPS
Power
355 W
Form factor
Triple slot, full height
Interface
PCIe 4.0 x16
Architecture
RDNA 3
Launched
2022
MSRP
$999

Source: manufacturer specifications.