NVIDIA GeForce RTX 3080 10GB vs NVIDIA Tesla P40
Side-by-side comparison for AI and gaming. Which one should you buy in 2026?
Bottom Line
NVIDIA Tesla P40 wins — more VRAM at the same or lower price. No contest for AI.
AI Model Compatibility
How each GPU handles popular AI models. VRAM determines whether a model fits — green means it runs, red means it won't.
Estimated Performance (tok/s)
Bandwidth-based estimates, not hardware benchmarks. Methodology
NVIDIA GeForce RTX 3080 10GB
The NVIDIA GeForce RTX 3080 10GB was a strong gaming card in its generation with 10GB of GDDR6X. In 2026, the 10GB VRAM is limiting for both modern games and AI. For AI, you can run 7B models but anything larger requires heavy quantization. Good used prices, but the 12GB RTX 3060 or used 3090 are usually better AI value picks.
Full specs →NVIDIA Tesla P40
The NVIDIA Tesla P40 is the ultimate budget AI card — 24GB of VRAM for around on the used market. Based on the older Pascal architecture (2016), it lacks modern tensor cores and FP16 acceleration, making inference significantly slower than newer cards. But for hobbyists who want to experiment with 32B models at Q4 quantization without spending thousands, nothing else comes close on price. Requires a second GPU for display output and runs with a loud blower cooler.
Full specs →Who Should Buy Which?
Buy the NVIDIA GeForce RTX 3080 10GB if:
- + You want better gaming performance
- + Used market 1440p gaming on a budget
Buy the NVIDIA Tesla P40 if:
- + You need 24GB VRAM for larger AI models
- + You want to save $150
- + AI workloads are your primary use case
- + You want lower power consumption (250W vs 320W)
- + Cheapest 24GB VRAM card available — the budget AI experimenter's pick