NVIDIA RTX 4090 vs NVIDIA T4 16GB for local LLMs
57 reports on the NVIDIA RTX 4090 and 7 on the NVIDIA T4 16GB
Which is faster for local LLMs?
Nobody has reported the same model at the same quant on both cards yet, so there's no measured head-to-head. Memory bandwidth, which caps how fast a card can write, is 3.1x higher on the NVIDIA RTX 4090 (1,008 GB/s on the NVIDIA RTX 4090, 320 on the NVIDIA T4 16GB). The estimates below compare them on the models people run most.
NVIDIA RTX 4090
- Memory
- 24GB
- Memory bandwidth
- 1,008 GB/s
- FP16 compute
- 330 TFLOPS
- Reports
- 57
NVIDIA T4 16GB
- Memory
- 16GB
- Memory bandwidth
- 320 GB/s
- FP16 compute
- 65 TFLOPS
- Reports
- 7
Estimated by the calculator
The quant the calculator recommends for each card and its estimated speed at a 32,768-token context with 32 GB of system RAM, from memory bandwidth and the model's shape.
| Model | NVIDIA RTX 4090 | NVIDIA T4 16GB |
|---|---|---|
| Qwen3.8 27B | 36.5 t/sQ4_K_M | 20.9 t/sQ2_K |
| Qwen3.8 125B · 6B active | 19.6 t/sQ2_K, experts in RAM | doesn't fit at these settings |
| Qwen3.6 35B · 3B active | 129.3 t/sQ4_K_S | 69.0 t/sQ2_K |
| DeepSeek V4 Flash 284B · 13B active | doesn't fit at these settings | doesn't fit at these settings |
| Qwen3.6 27B | 36.5 t/sQ4_K_M | 20.9 t/sQ2_K |
| Gemma 4 26B · 4B active | 82.3 t/sQ5_K_S | 46.5 t/sQ3_K_S |
Change the context, RAM or model in the calculator: NVIDIA RTX 4090 · NVIDIA T4 16GB
Every report on each card, with its source: NVIDIA RTX 4090 · NVIDIA T4 16GB