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Can AMD Radeon RX 7800 XT run Devstral-Small-2-24B-Instruct-2512?

This page was written and translated automatically by AI and checked by software against its sources, with no human editing. Specifications come from the sources listed; memory requirements and speeds are estimates calculated with published formulas. How we use AI

Fits By llama.cpp’s default load check, Devstral-Small-2-24B-Instruct-2512 fits on AMD Radeon RX 7800 XT at IQ4_XS with a context of 8,192 tokens. One card needs 14.7 GiB available for “Fits”.

At IQ4_XS, the longest context that fits is 8,192 tokens.

“Fits” means llama.cpp's default --fit load check would place all layers on the GPU: our estimate of llama.cpp's buffers, plus its error margin, plus llama.cpp's 1 GiB per-card reserve, is within the memory counted as available. It does not promise that peak memory while generating fits. How results are decided

Values updated Oct 19, 2026 · Calculator

Run profile: llama.cpp, ROCm back end on Linux (AMD discrete GPU), all layers on the GPU, Flash Attention on, micro-batch (-ub) 512, F16 KV cache, context (-c) as shown; “Fits” is judged with llama-server’s default 4 parallel sequences (-np auto, unified KV cache) and “Doesn’t fit” with 1 sequence; idle GPU with no other programs using its memory.

Memory counted as available for “Fits” (C_low): 14.75 GiB per card = 16 GiB nominal − 16 MiB (nominal minus the total that llama.cpp reported for this GPU in public logs) − 1,216 MiB (the largest start-up and runtime use seen in this profile’s public logs), rounded down to a multiple of 64 MiB.

These results apply to the configuration seen in public logs, where llama.cpp reported 16,368 MiB of total memory for this GPU. Settings that reduce usable memory (for example ECC, where the card supports it) are not covered.

Memory used for “Doesn’t fit” (C_high): the full 16 GiB per card. Run profiles and their measurements

Memory needed by quantization and context

Available memory needed for “Fits” (X, GiB per card) and the result on AMD Radeon RX 7800 XT.
Quantization4,0968,19232,768131,072
BF16 46.8 GiB Doesn't fit47.5 GiB Doesn't fit51.5 GiB Doesn't fit67.5 GiB Doesn't fit
Q8_0 25.8 GiB Doesn't fit26.5 GiB Doesn't fit30.4 GiB Doesn't fit46.4 GiB Doesn't fit
Q6_K 20.3 GiB Doesn't fit21.0 GiB Doesn't fit25.0 GiB Doesn't fit41.0 GiB Doesn't fit
Q5_K_M 17.9 GiB Tight18.6 GiB Tight22.6 GiB Doesn't fit38.6 GiB Doesn't fit
Q4_K_M 15.6 GiB Tight16.3 GiB Tight20.3 GiB Doesn't fit36.3 GiB Doesn't fit
Q4_0 14.8 GiB Tight15.4 GiB Tight19.4 GiB Tight35.4 GiB Doesn't fit
IQ4_XS 14.1 GiB Fits14.7 GiB Fits18.7 GiB Tight34.7 GiB Doesn't fit
Q3_K_M 12.9 GiB Fits13.6 GiB Fits17.6 GiB Tight33.5 GiB Doesn't fit
Q2_K 10.4 GiB Fits11.1 GiB Fits15.1 GiB Tight31.1 GiB Doesn't fit

No speed ceiling is given: the memory bandwidth of AMD Radeon RX 7800 XT is not confirmed by two independent open sources.

Alternatives

Other 16 GB GPUs where Devstral-Small-2-24B-Instruct-2512 fits

Sources