AMD · consumer

Radeon RX 6750 XT

Radeon RX 6750 XT has 12 GB of VRAM at 432 GB/s — about 11.16 GiB usable after driver and compositor overhead. 1450 of 2118 indexed models fit at 32K context with f16 KV.

Spec sheet· bandwidth, theoreticalFrom the file· fit from summed bytesPredicted· speed
Memory
12 GB
GDDR6
Bandwidth
432 GB/s
192-bit bus
Tensor FP16
dense
TDP
250 W
$549 MSRP
KV cachef16q8_0q4_0quantizing the KV cache is a ~2× lever on the dominant term at long context
text 1229vision language 121audio tts 21video 14embedding 26image 1audio asr 38

What fits at 32K context

largest quantization that fits, per model · 1450 of 2118 indexed
ModelBest quantParamsWeightsKVTotal in memoryHeadroomtok/s
diffusiongemma-26B-A4B-it-HERETIC-UncensoredMoETQ2_025.8B8.72 GiB1.54 GiB11.15 GiB0.01 GiB26±26.5%
Qwen3.5-9B-The-Defiant-Fable-Uncensored-Heretic-NEO-IMATRIX-MAX-MTPIQ2_M9.7B9.21 GiB1.00 GiB11.14 GiB0.02 GiB26±26.5%
gemma-4-26B-A4BMoETQ2_026.5B8.71 GiB1.54 GiB11.14 GiB0.02 GiB26±26.5%
Ministral-3-8B-Instruct-2512-BF16Q5_K_L8.9B5.95 GiB4.25 GiB11.14 GiB0.02 GiB27±26.5%
internlm3-8b-instructQ8_08.8B8.72 GiB1.50 GiB11.14 GiB0.02 GiB26±26.5%
Qwen3-16B-A3BMoEQ3_K_M16.0B7.24 GiB3.00 GiB11.14 GiB0.02 GiB35±37%
AMALIA-9B-0626-DPOQ4_K_S9.2B4.96 GiB5.25 GiB11.14 GiB0.02 GiB26±26.5%
granite-4.0-h-smallMoEIQ2_M32.2B9.75 GiB0.50 GiB11.14 GiB0.02 GiB62±37%
Llama-3.2-3B-Instruct-uncensoredF163.6B6.73 GiB3.50 GiB11.13 GiB0.03 GiB26±26.5%
Gemma-4-12B-StyleTuneI1-Q4_113.0B7.72 GiB2.47 GiB11.13 GiB0.03 GiB27±26.5%
gemma-4-12b-heretic-styletune-headI1-Q4_112.0B7.72 GiB2.47 GiB11.13 GiB0.03 GiB27±26.5%
syrian-gemma-12bI1-Q4_113.0B7.72 GiB2.47 GiB11.13 GiB0.03 GiB27±26.5%
granite-4.1-8bQ4_18.8B5.20 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
legitus-instruct-v1I1-Q6_K8.1B6.16 GiB4.00 GiB11.13 GiB0.03 GiB27±26.5%
Apertus-8B-Instruct-2509I1-Q6_K8.1B6.16 GiB4.00 GiB11.13 GiB0.03 GiB27±26.5%
Forsaken-Void-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Silver-Siren-ST-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Tess-3-Mistral-Nemo-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
KrakenSakura-Maelstrom-12B-v1IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
MN-12B-Runeweaver-RP-RUI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Dans-PersonalityEngine-V1.3.0-12bI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Impish_Bloodmoon_12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Wayfarer-2-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Wayfarer-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Muse-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
mini-magnum-12b-v1.1IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
MN-Violet-Lotus-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Rocinante-X-12B-v1-Heretic-UncensoredI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Mistral-Heretica-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
arcee-fusion-lumaid-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Mistral-NeMo-12B-AbliteratedI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Captain-Eris_Violet-V0.420-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Rocinante-X-12B-v1-absolute-heresyI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Rocinante-X-12B-v1I1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Mistral-Nemo-2407-12B-Thinking-Claude-Gemini-GPT5.2-Uncensored-HERETICI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Dans-SakuraKaze-V1.0.0-12bI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Mistral-Nemo-Inst-2407-12B-Thinking-Uncensored-HERETIC-HI-Claude-OpusI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Mistral-Nemo-Instruct-2407-12B-Thinking-M-Claude-Opus-High-ReasoningI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
MN-12B-Mag-Mell-R1IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Mordant-12B-ThinkI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Riverfish-Rocinante-12B-SFT-DPOI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
MN-Violet-Lotus-12B-HereticI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Himeyuri-Magnum-12B-HereticMergeI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Kinggaroo-12b-v1I1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Magnum-Picaro-0.7-v2-12bI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
magnum-v2.5-12b-ktoI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Mistral-Nemo-Prism-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Nera_Noctis-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Chronos-Gold-12B-1.0I1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
patricide-12B-Unslop-MellI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
MN-12B-Celeste-V1.9I1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
magnum-v2-12bI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Peaceful-Days-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
NemoMix-Unleashed-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Mistral-Nemo-Base-2407I1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Blissful-Days-12BI1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Rocinante-12B-v1.1I1-IQ3_S12.2B5.18 GiB5.00 GiB11.13 GiB0.03 GiB27±26.5%
Llama3.2-24B-A3B-II-Dark-Champion-INSTRUCT-Heretic-Abliterated-UncensoredMoEI1-IQ3_XXS18.0B6.71 GiB3.50 GiB11.12 GiB0.04 GiB33±37%
dolphin-2.9.2-Phi-3-MediumKV unresolvedIQ2_XS14.0B3.91 GiB6.25 GiB11.12 GiB0.04 GiB27±26.5%
Qwen3-VL-8B-Instruct-HereticI1-IQ2_M8.8B5.68 GiB4.50 GiB11.12 GiB0.04 GiB27±26.5%
From the filePredictedwhat these mean

Speed is modeled, not measured: decode is memory-bandwidth bound, so tokens per second is bytes read per token against achievable bandwidth. Mixture-of-experts models carry a wider band because only the routed experts are read each step, and few have been measured publicly.

Measured on this card

third-party benchmarks, aggregated
WorkloadMedianMiddle 50%Runs
Image generation3.82 it/s2.906.0885
Benchmarked· n=85

Aggregated from community-submitted runs, so the spread is wide by nature — it covers different models, resolutions, step counts and settings, not one controlled configuration. Read the middle 50% rather than the median alone. These figures are reproduced with attribution from vladmandic-sd-data-benchmark, which publishes no licence — so we display and link rather than redistribute them.

Questions people ask

What AI models can a Radeon RX 6750 XT run?
1450 of 2118 indexed open-weight models fit a Radeon RX 6750 XT at 32,768 context with f16 KV cache, the largest being diffusiongemma-26B-A4B-it-HERETIC-Uncensored at TQ2_0. That covers text, vision-language, image, video and speech models.
How much usable memory does a Radeon RX 6750 XT actually have?
Its nameplate is 12 GB, but about 11.16 GiB is available to a model once driver and compositor overhead is accounted for.
Is a Radeon RX 6750 XT fast for local AI?
Its memory bandwidth is 432 GB/s, and that figure — not teraflops — is what governs token generation speed. Capacity decides what you can run; bandwidth decides how fast it runs.