DeepSeek-V4-Flash (MXFP4): compute buffer scales ~3x just from KV cache quant type (f16 vs q8_0) — anyone else seeing this? Llama.cpp

Bartowski's DeepSeek-V4-Flash-MXFP4 GGUF, llama.cpp build 9851 ( 0eca4d490 ), deepseek4 arch. Ran the same n_ctx = 10240 , same n_ubatch = n_batch = 8192 , flash attention on — only difference is -ctk / -ctv : Cache type Total KV cache (CUDA0) CUDA0 compute buffer