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Tesla P4 8GB vs RTX 3090 Ti 24GB for Local LLMs

The RTX 3090 Ti 24GB has about 425% more memory bandwidth (1,008 vs 192 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 425% faster on the RTX 3090 Ti 24GB. The RTX 3090 Ti 24GB fits more of the catalog at Q4/8K — 35 vs 16 of 69 models (24 vs 8 GB VRAM). Largest model that fits the RTX 3090 Ti 24GB but not the Tesla P4 8GB: Qwen3.6-35B-A3B (36.0B). MSRP is $80 for the Tesla P4 8GB vs $1,999 for the RTX 3090 Ti 24GB. MSRP is a launch list price, not live retail — Amazon prices move; click through for the current price. In the Q4/8K head-to-head below (39 shared models), the RTX 3090 Ti 24GB posts the higher tok/s in 39 rows vs 0. Methodology.

Spec comparison

Tesla P4 8GBRTX 3090 Ti 24GB
VendorNVIDIANVIDIA
VRAM8 GB24 GB
Memory typeGDDR5GDDR6X
Memory bandwidth192 GB/s1,008 GB/s
TDP75 W450 W
MSRP (list)$80$1,999
BuySearch Amazon (affiliate)Search Amazon (affiliate)

MSRP is the launch list price, not live retail. Buy links are Amazon affiliate links — the price after you click is the live price.

Q4 / 8K head-to-head — top 15 of 39 shared models

ModelParams (B)Tesla P4 8GB tok/sTesla P4 8GB fitsRTX 3090 Ti 24GB tok/sRTX 3090 Ti 24GB fitsWinner
MiniCPM5-1B1.08113.1 est.Yes593.9 est.YesRTX 3090 Ti 24GB
Qwen3.5-2B2.061.1 est.Yes320.7 est.YesRTX 3090 Ti 24GB
DeepSeek-R1-0528-Qwen3-8B-layer-mix-bpw-3.8-mlx2.353.1 est.Yes278.9 est.YesRTX 3090 Ti 24GB
Qwen3.6-35B-A3B36.017.0 est.No213.8 est.YesRTX 3090 Ti 24GB
Qwen3.5-35B-A3B34.718.2 est.No213.8 est.YesRTX 3090 Ti 24GB
GLM-4.7-Flash31.221.0 est.No213.8 est.YesRTX 3090 Ti 24GB
Qwen3-30B-A3B-Instruct-250730.521.9 est.No213.8 est.YesRTX 3090 Ti 24GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF1630.024.1 est.No213.8 est.YesRTX 3090 Ti 24GB
Ornith-1.0-35B35.017.0 est.No213.8 est.YesRTX 3090 Ti 24GB
qwen35b-a3b-fable-sft-abliterated34.717.3 est.No213.8 est.YesRTX 3090 Ti 24GB
Llama-3.2-3B-Instruct3.238.2 est.Yes200.5 est.YesRTX 3090 Ti 24GB
gpt-oss-20b21.533.6 est.No178.2 est.YesRTX 3090 Ti 24GB
gemma-4-26B-A4B-it25.223.9 est.No168.8 est.YesRTX 3090 Ti 24GB
Qwen3-4B-Instruct-25074.030.5 est.Yes160.4 est.YesRTX 3090 Ti 24GB
NVIDIA-Nemotron-3-Nano-4B-BF164.030.5 est.Yes160.4 est.YesRTX 3090 Ti 24GB

est. = bandwidth-based estimate; measured = curated real benchmark that overrides the estimate. Fits = weights + KV(8K) + 1 GB overhead ≤ 95% of VRAM.

Fit coverage at Q4 / 8K

Tesla P4 8GBRTX 3090 Ti 24GB
Catalog models that fit16 of 6935 of 69
Largest exclusive fit—Qwen3.6-35B-A3B (36.0B)

Tesla P4 8GB details → · RTX 3090 Ti 24GB details →