llamaperf

NVIDIA RTX 3090 Ti

NVIDIA · 24GB · 6 reports

Engines people use on it: Strata 2 (reports) · llama.cpp 2 (reports) · vLLM 1 (reports)

Run models on your NVIDIA RTX 3090 Ti? Add your numbers.

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Reported performance on the NVIDIA RTX 3090 Ti

These reports mix GPU counts and memory setups, so a model listed here may have needed extra cards or CPU offloading. The calculator estimates which models fit in 24 GB of VRAM.

Qwen3.8 27B

NVIDIA RTX 3090 Ti · vLLM · 69,600 ctx

Tone: positiveNVIDIA hardware
generation:
34.0 tokens/s
quant:
W4A16

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.

codingagenticlong-context

User reports Qwen3.8-27B at about 34 t/s per stream across four concurrent requests on an RTX 3090 Ti, roughly 135-160 t/s total. Setup is vLLM with 4-bit W4A16 weights fully in VRAM, 69.6k context, four requests batched at once; four 17.9k-token prompts read together gave first token after about 19 s (~3,700 t/s total). A CPU-only Qwen3.6-35B-A3B Q8 slot adds a fifth stream at ~9 t/s writing and 103 t/s reading on a 1.7k prompt (67 t/s at 12.8k). User compares this against Strata running Qwen3.8-Flash-Next 125B IQ3_S at 106-144 t/s writing and ~2,800 t/s reading, and Maya-M running GLM-5.3-Flash 321B at 18-24 t/s writing and ~500-1,150 t/s reading, both one request at a time. The main model, DeepSeek-V4.1-Flash at 2.77 bpw on 2x DGX Spark, writes ~40-55 t/s and reads ~1,600-2,000 t/s.

Oct 19, 2026
Tone: mixedNVIDIA hardware
generation:
148.9 tokens/s
prompt processing (prefill):
1886.8 tokens/s
quant:
IQ3_S (GGUF)
kv:
int8
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.

codinglong-context

User reports Qwen3.8-Flash-Next at 148.86 tok/s narrative decode and 174.67 tok/s code decode on a dual-GPU rig (RTX 3090 Ti + RTX 3090). Setup is Strata with IQ3_S quant, int8 KV cache, 262,144-token context, MTP speculation, --spec 4, --kv-resident 32768, --mmap-experts, vision on, automatic layer split. The 148.86/174.67 figures are the ISO18 profile (PREFILL_HELP), which also gives 1,886.76 tok/s at 10K prefill and 3,641.54 tok/s at 90K. ISO19 (PF_FUSED) is the prefill winner at 1,995.53 tok/s at 10K and 4,149.45 tok/s at 90K, but about 5% slower on narrative decode and 3% slower on code decode; its output-sanity check was still pending. The post traces a Strata 0.1.41 regression (decode about 8% slower, 10K prefill about 15% faster, 90K prefill about 7% slower) to automatic GPU placement, and verifies a fix (STRATA_SPLIT_UNIFORM=1 plus gpu_order: as_given) that restores the 0.1.40.3 baseline range. The fix is opt-in and validated on this specific rig.

Oct 16, 2026
Tone: positiveNVIDIA hardware
generation:
105.0 tokens/s
prompt processing (prefill):
2000.0 tokens/s
quant:
IQ3-XXS (GGUF)
kv:
int8

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 reports Qwen3.8 Flash-Next Swift-1.5 at 105 t/s decode and around 2000 t/s prefill on an RTX 3090 Ti plus a V100 16GB. Setup is Strata 0.1.39 with IQ3-XXS weights, int8 KV cache, 393216 max context, yarn rope scaling at 1.5, and speculative decoding with --spec 4. Layers are split 2/3 on the 3090 Ti and 1/3 on the V100. User says the same model previously reached only around 50 t/s decode with llama.cpp layer splitting.

Oct 5, 2026
NVIDIA hardware
generation:
67.8 tokens/s
quant:
IQ4_XS (GGUF)
kv:
turbo5

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.

codingagentic

User reports Qwen3.8-27B at 67.8 tok/s after a 250,000-token prompt on an RTX 3090 Ti. Setup is the llamAmpere v0.4 fork of llama.cpp with an IQ4_XS GGUF, turbo5/turbo4 KV cache, 262,144-token context, and the model's MTP drafter at depth 4. The run generated 5,120 tokens and peaked at 22,346 MiB of VRAM. The release tree decodes 104.28 tok/s on the v0.3.1 ship corpus and 103.09 tok/s at 100K KV depth.

Oct 4, 2026
NVIDIA hardware
generation:
15.0 tokens/s
prompt processing (prefill):
150.0 tokens/s
quant:
IQ2XXS-w2Q2K-AProjQ8-SExpQ8-OutQ8 (GGUF)

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 reports DeepSeek V4 Flash at about 150 tok/s prompt processing and 15 tok/s generation in short contexts on an RTX 3090 Ti 24GB with 96GB DDR5-6400 and an AMD 9950X CPU. Setup is llama.cpp with an IQ2XXS-w2Q2K-AProjQ8-SExpQ8-OutQ8 GGUF, 98304 context, -ngl 99 and --n-cpu-moe 40, so 40 MoE layers ran on the CPU. User says it works well in the pi harness with the llama.cpp chat template.

Oct 3, 2026

Qwen3.6 27B

2× NVIDIA RTX 3090 Ti · llama.cpp · 196,608 ctx

Tone: positiveNVIDIA hardware
generation:
100.0 tokens/s
quant:
Q8_0 (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 tensor split-mode raising throughput from 70+ t/s to 100+ t/s, with a peak of 130 t/s. Power draw is 750W+.

Jun 23, 2026

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Reported configurations

Individual observations from this page, not expected speeds or a ranking. Select a model to open its report, with the source and offloading conditions. Reported context may be a limit rather than actual input length.

Model / hardwareQuant / engineReported contextGeneration
Qwen3.8 27B
NVIDIA RTX 3090 Ti
W4A16
vLLM
69,60034.0 tokens/s
Qwen3.8 125B (6B active) Flash-Next
2× NVIDIA RTX 3090 Ti
IQ3_S
Strata
262,144148.9 tokens/s
Qwen3.8 125B (6B active) Swift-1.5
2× NVIDIA RTX 3090 Ti
IQ3-XXS
Strata
393,216105.0 tokens/s
Qwen3.8 27B Swift-1.5-Uncensored
NVIDIA RTX 3090 Ti
IQ4_XS
llamAmpere
262,14467.8 tokens/s
DeepSeek V4 Flash 284B (13B active)
NVIDIA RTX 3090 Ti
IQ2XXS-w2Q2K-AProjQ8-SExpQ8-OutQ8
llama.cpp
98,30415.0 tokens/s
Qwen3.6 27B
2× NVIDIA RTX 3090 Ti
Q8_0
llama.cpp
196,608100.0 tokens/s