Can I Run Qwen 3 on AMD Radeon RX 7800 XT?

Written by Jakub Rusinowski · Last updated July 12, 2026

Yes, comfortably — you'll have ~7.1 GB of headroom running Qwen 3 14B at Q4_K_M (8.935500000000001 GB, ~37 tok/s (est.)) with room for up to 32K context.

Buy This HardwareAMD Radeon RX 7800 XT 16GB — 16 GB VRAM · 263 W board powerDeploy in the Cloud NowRTX 4090 on RunPod — from $0.34/hr · rate checked 2026-07

or compare on Vast.ai from $0.35/hr (typical low · varies)

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AMD Radeon RX 7800 XT 16GB
16 GB VRAM · 263 W board power
2026 prices are volatile — check the current listing.
Check price on Amazon

AMD Radeon RX 7800 XT Specs

VRAM16 GB
Memory Bandwidth624 GB/s

Qwen 3 14B on the AMD Radeon RX 7800 XT: VRAM by quantization

QuantVRAM neededFits 16 GB?Max context
F1631.1 GB✗ No
Q8_017.2 GB✗ No
Q6_K13.6 GB✓ Yes16K
Q5_K_M12 GB✓ Yes16K
Q4_K_M10.4 GB✓ Yes32K
Q3_K_M7.8 GB✓ Yes32K
Q2_K6.3 GB✓ Yes32K

VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 16 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

Qwen 3 Sizes That Fit the AMD Radeon RX 7800 XT

Qwen 3 14BQ4_K_M · 8.935500000000001 GB · ~37 tok/s (est.)
Qwen 3 8BQ4_K_M · 4.950749999999999 GB · ~58 tok/s (est.)
Buy vs. rent Qwen 3
Buy the GPU
~$499
AMD Radeon RX 7800 XT · MSRP
Rent by the hour
from $0.34/hr
RTX 4090 (24 GB) class

At 2 hrs/day, buying (~$499) beats renting at $0.34/hr after about 2.0 years.

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RunPod $0.34/hr
Rent on RunPod →
Vast.ai $0.35/hr · typical low · varies
Rent on Vast.ai →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

FAQ

Does the AMD Radeon RX 7800 XT have enough VRAM for Qwen 3?

Yes, comfortably — you'll have ~7.1 GB of headroom running Qwen 3 14B at Q4_K_M (8.935500000000001 GB, ~37 tok/s (est.)) with room for up to 32K context.

Which quantization of Qwen 3 should I use on the AMD Radeon RX 7800 XT?

Qwen 3 14B at Q4_K_M quantization (8.935500000000001 GB), estimated ~37 tokens/sec, up to 32K context.

Qwen 3 on Other GPUs

Popular Models on the AMD Radeon RX 7800 XT

VRAM Tier

Troubleshooting

Buying Guide

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