NVIDIA GeForce RTX 5080 vs NVIDIA GeForce RTX 4090
NVIDIA GeForce RTX 5080 wins — The RTX 5080 wins on rasterization performance and DLSS 4; the RTX 4090 retains a VRAM advantage that matters for 4K tex…
Scores: NVIDIA GeForce RTX 5080 7.8/10 · NVIDIA GeForce RTX 4090 6.6/10
The RTX 5080 wins on rasterization performance and DLSS 4; the RTX 4090 retains a VRAM advantage that matters for 4K texture packs and AI workflows.
Spec-by-spec comparison
| NVIDIA GeForce RTX 5080 | NVIDIA GeForce RTX 4090 |
|---|
| CUDA Cores | 10,752 | 16,384 |
|---|
| VRAM | 16GB GDDR7 | 24GB GDDR6X |
|---|
| Memory Bandwidth | ~960 GB/s | ~1,008 GB/s |
|---|
| TGP | 360W | 450W |
|---|
| DLSS Generation | DLSS 4 (MFG) | DLSS 3 |
|---|
| 4K Rasterization | ~15% faster | Baseline |
|---|
NVIDIA GeForce RTX 5080
What works
- 12-17% faster in rasterization vs 4090 at lower 360W TGP
- DLSS 4 Multi Frame Generation — exclusive to Blackwell, major frame rate multiplier
- GDDR7 memory — much higher bandwidth per GB than 4090's GDDR6X
What doesn't
- 16GB VRAM is limited for professional AI inference on large models
- Street prices $50-100 above MSRP in early 2026
- 8GB less VRAM than the card it competes with in resale market
NVIDIA GeForce RTX 4090
What works
- 24GB GDDR7X VRAM — 8GB more than 5080, matters for AI workflows and extreme 4K mods
- Still a performance leader — within 15% of RTX 5080 in most games
- Available used at $900-1,100 — equivalent or lower price to 5080
What doesn't
- No DLSS 4 Multi Frame Generation — hardware limitation, not driver-fixable
- 450W TGP requires robust PSU (850W minimum recommended)
- Used market means no manufacturer warranty unless buying from Newegg Certified Refurbished
Bottom line
Our pick: NVIDIA GeForce RTX 5080.
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