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Head-to-head analysis
GeForce RTX 4090 vs GeForce RTX 4080
Specifications, power, memory and architecture—side by side.
VRAM24 GB
Clock2520 MHz
TDP450 W
ArchGeForce 40
Spec index
The spec index weights memory, bandwidth, clocks, efficiency and release recency. It is directional, not measured benchmark data.
Our Verdict
These two GPUs are very evenly matched specs-wise.
VRAM16 GB
Clock2505 MHz
TDP320 W
ArchGeForce 40
Technical Specifications
| Feature | GeForce RTX 4090 | GeForce RTX 4080 |
|---|---|---|
| 💾VRAM | 24 GBWinner | 16 GB |
| 🚀Boost Clock | 2520 MHz | 2505 MHz |
| 📊Memory Bandwidth | 1.01 GB/s | 716.8 GB/sWinner |
| 🔌TDP | 450 W | 320 WWinner |
| 🚌Bus Width | 384-bitWinner | 256-bit |