NVIDIA RTX Pro 4000 Blackwell

reported speed:

71.4 tokens/s generation

quant:

AWQ (AWQ)

kv:

fp8_e5m2

Reported by the source; GPU count, offloading and concurrent requests can change this figure. Check the full setup before comparing.

User benchmarks Qwen2.5-32B-Instruct-AWQ at 71.37 tok/s median decode on 2x RTX PRO 4000 Blackwell. Setup is SGLang 0.5.19 with AWQ weights, NGRAM speculative decoding (K=5), tensor parallelism 2 over PCIe Gen4, and FP8 KV cache. NGRAM speculative decoding gives a 1.28x median speedup over the 55.60 tok/s baseline, with high inter-prompt variance (std dev 19.18 tok/s). Per-domain decode ranges are 65-107 tok/s for JSON, 60-226 tok/s for code, and 58-82 tok/s for prose. FP8 KV cache alone measured 54.77 tok/s, a 1.5% regression.

reported speed:

67.0 tokens/s generation · 785.0 tokens/s prompt processing

kv:

Q8

Reported by the source; GPU count, offloading and concurrent requests can change this figure. Check the full setup before comparing.

User reports 67 t/s with MTP3 speculative decoding enabled, against 24.4 tok/s without MTP. Setup uses an INT8 KV cache with group-64. The figure comes from a 128K NIAH benchmark with 130,048 prompt tokens, where MTP acceptance was 100% on a deterministic answer. Roughly 727 MiB of VRAM was left.

reported speed:

33.9 tokens/s generation

Reported by the source; GPU count, offloading and concurrent requests can change this figure. Check the full setup before comparing.

User reports Qwen3.8:27b at 33.91 t/s on 2x RTX PRO 4000s and an RTX PRO 2000, up from 12.2 t/s. Splitting the GPUs across VMs produced the gain. User also reports muse-glimmer:30B at 22.61 t/s on the same setup, up from 14.3 t/s.