llamaperf

NVIDIA RTX 5090 reports

171 reports. These are individual setups, not a controlled benchmark. NVIDIA RTX 5090 speeds and models →

Qwen3.8 27B

NVIDIA RTX 5090 · NInfer · 240,000 ctx

Tone: positiveNVIDIA hardware
generation:
170-179 tokens/s
quant:
NVFP4
kv:
FP8

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

User reports Qwen3.8 27B averaging in the 170s t/s on an RTX 5090, peaking at 220 t/s. Setup is ninfer-serve with the nvfp4 weights, MTP speculative decoding with 3 draft tokens, lm-head-draft, an fp8 KV cache and 240,000 context. User calls it double or more the throughput of llama.cpp.

Sep 7, 2026

Qwen3.8 27B

NVIDIA RTX 5090 · NInfer · 240,000 ctx

Tone: positiveNVIDIA hardware
generation:
202.0 tokens/s
prompt processing (prefill):
3904.0 tokens/s
quant:
NVFP4
kv:
FP8
mtp (multi-token prediction):
on

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is input throughput, not time to first token. Check the full setup before comparing.

long-contexttool-useagentic

User compares NInfer, llama.cpp and vLLM for Qwen3.8-27B on an RTX 5090. NInfer with NVFP4 and MTP3 reaches 158-213 t/s decode and 3904-7265 t/s prefill. NInfer outperforms llama.cpp with Q5_K_M by 1.4-2.8x decode and 2.6-4.7x prefill. Quality is statistically indistinguishable across engines. NInfer lacks json_mode support, and vLLM speed is not directly comparable due to wall-clock timing.

Sep 7, 2026

Qwen3.8 27B

NVIDIA RTX 5090 · SGLang · 175,064 ctx

Tone: positiveNVIDIA hardware
generation:
144.0 tokens/s
quant:
NVFP4 (safetensors)
kv:
FP8

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

User reports prose decode at ~144 t/s and code at ~256 t/s, with parallel x2 at ~261/451 t/s. Prefill TTFT runs from 0.33s at 5k to 23.46s at 150k, with a 175k KV pool and a host-RAM KV tier that resumes a ~100k conversation in ~1s. External evals give GPQA Diamond 84.8%, GSM8K 96.8%, MATH-500 95.6%, AIME 2024 83.3%, HumanEval 56.7% and MBPP 75.0%. The run uses the froggeric template with xhigh reasoning and a 16k think cap.

Sep 7, 2026

Qwen3.8 27B

NVIDIA RTX 5090 · llama.cpp · 90,112 ctx

NVIDIA hardware
generation:
97.7 tokens/s
prompt processing (prefill):
1995.8 tokens/s
quant:
Q8_K_L (GGUF)
kv:
Q8

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is input throughput, not time to first token. Check the full setup before comparing.

User benchmarks DFlash2 speculative decoding against MTP on Qwen3.8-27B. DFlash2 gives 20% faster generation but reduces context size by 38%. The prompt and generation TPS figures are weighted averages.

Sep 7, 2026

Qwen3 8B

NVIDIA RTX 5090 · llama.cpp · 8,192 ctx

Tone: positiveNVIDIA hardware
generation:
159.0 tokens/s
quant:
BF16 (GGUF)

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

summarizationmultilingual

User benchmarks a DSpark PC Tree speculative decoding fork at 159.00 tok/s in its best config, PCTree k3/n16, against 94.27 tok/s for plain decoding. User also tests Qwen3.8 27B Q4, with worse results.

Sep 7, 2026

Ling3-tiny

NVIDIA RTX 5090 · 256,000 ctx

Tone: positiveNVIDIA hardware
prompt processing (prefill):
1300.0 tokens/s

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is input throughput, not time to first token. Check the full setup before comparing.

long-context

User reports a KV cache blending technique that splits the prompt into chunks, caches each part in isolation, and concatenates the caches for decode. The method maintains needle-in-haystack retrieval with overlap. Prefill speed is boosted 3x to ~1.3k tps at 256k tokens, comparable to Qwen3.8-27b on an RTX 5090.

Sep 7, 2026
Tone: positiveNVIDIA hardware
generation:
200.5 tokens/s
prompt processing (prefill):
2587.0 tokens/s
quant:
NVFP4
kv:
Q8
mtp (multi-token prediction):
on

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is input throughput, not time to first token. Check the full setup before comparing.

agenticcoding

User benchmarks 180K context with MTP5 enabled, reaching 2587 t/s prefill and 200.5 t/s decode. The run also covers 64K and 120K contexts. A synthetic corpus yields high MTP acceptance, while real agentic coding logs show about 51% accept and about 154 t/s.

Sep 7, 2026

Qwen3.8 27B

NVIDIA RTX 5090 · vLLM · 196,000 ctx

Tone: positiveNVIDIA hardware
generation:
120.0 tokens/s
quant:
NVFP4

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

coding

User reports an average of 120 t/s across 3 parallel sessions. Setup is a 451K global KV cache with vision enabled and power limited to 400W. Detailed benchmarks are given in a table.

Sep 7, 2026

Qwen3.8 27B

NVIDIA RTX 5090 · llama.cpp · 113,920 ctx

NVIDIA hardware
generation:
154.1 tokens/s
quant:
Q8_K_L (GGUF)
kv:
Q8

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

User benchmarks DFlash2 quants and MTP, with the best speed at 154.08 t/s for Q4 at n-max 7. The best balance is DFlash2 Q2 at n-max 5, reaching 137.19 t/s with 121k context. MTP tops out at 128.32 t/s at n-max 6. Context size is set to 113920 in the config.

Sep 7, 2026
Tone: positiveNVIDIA hardware
generation:
25.0 tokens/s
quant:
Q4_K_XL (GGUF)

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

User reports Qwen 3.8 Flash-Next at about 25 t/s on an RTX 5090 with 64 GB of RAM. Setup is the Q4_K_XL quant, with the n-gram table unloaded to an SSD to fit in memory. User advises that the n-gram table can be offloaded to an SSD with minimal speed cost.

Sep 7, 2026
NVIDIA hardware
generation:
44.0 tokens/s
quant:
Q4

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

Sep 7, 2026
NVIDIA hardware
generation:
43.4 tokens/s

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

User reports running unsloth/Qwen3.8-Flash-Next-GGUF on an RTX 5090. The user asks how it runs on the 5090 and hopes for more benchmarks.

Sep 7, 2026
Tone: positiveNVIDIA hardware
generation:
120.0 tokens/s
quant:
Q4_K_XL (GGUF)

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

User reports speculative decoding with the draft model dspark-DeepSeek-V4-Flash-0731-Q8_0.gguf, peaking at 153.9 t/s on code, averaging 120 t/s on code and 80 t/s on non-code. Setup is a 5090 on x8, an RTX PRO 6000 on x8 and an RTX PRO 5000 on x4 over PCIE Gen5, with a tensor split of 22,8,13. Spec draft n-max is 5 and p-min is 0.6.

Sep 7, 2026

Qwen3.8 27B

2× NVIDIA RTX 5090 · NInfer · 1,048,576 ctx

Tone: positiveNVIDIA hardware
generation:
119.0 tokens/s
quant:
NVFP4
kv:
Q8

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

User reports a fork of NInfer with tensor parallelism and YaRN scaling decoding at 119 t/s with MTP and 57 t/s without at 653k context, and 48 t/s decode at 1M context, around 100 t/s with MTP. Setup is a fork of NInfer with tensor parallelism and YaRN scaling. Against vLLM at 42 t/s at 653k, MTP acceptance drops to zero past 262k. Prefill is 1.2-1.3x slower than vLLM. Two GPUs reach 75 t/s versus 54 t/s on one at 250k.

Sep 7, 2026

Unknown family

NVIDIA RTX 5090

Tone: positiveNVIDIA hardware

User reports building FlashMLA for consumer Blackwell (sm_120) GPUs, likely RTX 5090. The build targets MLA inference and training workloads. It delivers a 2-3x speedup over SDPA. No specific model family is mentioned; the focus is on kernel performance.

Sep 7, 2026
Tone: positiveNVIDIA hardware
quant:
NVFP4

User compares NVFP4 against Q5_K_M on Qwen3.8-27B. NVFP4 with adjusted sampling (temp=0.9, min_p=0.05) reaches 80% strict on IFBench, matching local BF16 and near official BF16 79.5%, while Q5_K_M stays at 76%. NVFP4 runs about 3x faster and uses less VRAM. The Q5_K_M run uses llama.cpp.

Sep 7, 2026
NVIDIA hardware

User benchmarks Qwen3.5-9B, NVIDIA-Nemotron-3.5-Lightning-30B-A3B and Gemma-4-12B-it on a single RTX 5090. Nemotron-3.5-Lightning-30B-A3B runs as a UD-Q4_K_XL GGUF and Gemma-4-12B-it as QAT w4a16. Qwen3.5-9B scores 0.717 on GPQA Diamond and 0.713 on LiveCodeBench.

Sep 7, 2026
Tone: positiveNVIDIA hardware
generation:
20.0 tokens/s
quant:
Q4_K_XL (GGUF)

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

coding

User reports 20 t/s average with MTP running a model in an FPS game built with it, on a 5900x CPU, 128 GB DDR4 RAM, an RTX 5090 and an RTX 4000 PRO with 32+24 GB VRAM.

Sep 4, 2026
Tone: positiveNVIDIA hardware
generation:
90.0 tokens/s
quant:
MXFP4 (GGUF)
kv:
Q8

Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is shown only when the source reports it; generation speed cannot tell us time to first token. Check the full setup before comparing.

coding

User reports MTP support merged in ik_llama.cpp, with decode at 90 t/s on code, up from 45 without. Draft acceptance is 93-99% on code and 60-65% on prose. The same test on an RTX Pro 6000 gives 85 to 113 t/s on code and 83 to 59 t/s on story, and on a 12 GB 4070 it gives 9.5 to 12.5 t/s on code.

Sep 3, 2026
Tone: mixedNVIDIA hardware

User reports running GLM 5.2 on a system with 5x RTX Pro 6000 and 1x RTX 5090. User reports 98-99% task completion. User notes high heat and cost.

Aug 28, 2026