Sapphire
Sapphire Nitro+ Radeon RX 6900 XT
RDNA 2 · 16 GB GDDR6 · 300 W · Nitro+
82
/ 100
From $1,128
VS
GeForce RTX 5080 wins by 11
NVIDIA
GeForce RTX 5080
Blackwell · 16 GB GDDR7 · 360 W
93
/ 100
From $999
Specdex verdict
GeForce RTX 5080 takes it — here’s why.
In our weighted Specdex score, Sapphire Nitro+ Radeon RX 6900 XT lands at 82 and GeForce RTX 5080 at 93. That puts GeForce RTX 5080 ahead by 11 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Sapphire Nitro+ Radeon RX 6900 XT if…
- ✓More VRAM at price tier
- ✓FSR support
- ✓Driver open-source on Linux
Pick GeForce RTX 5080 if…
- ✓Excellent 4K performance
- ✓DLSS 4 support
- ✓Cooler and quieter than 5090
Sapphire Nitro+ Radeon RX 6900 XT 82
vs 93 GeForce RTX 5080
Score breakdown
Sapphire Nitro+ Radeon RX 6900 XT
82 raster 82
rt 72
ai 67
efficiency 76
GeForce RTX 5080
93 raster 94
rt 95
ai 94
efficiency 85
Specs side-by-side
| Spec | Sapphire Nitro+ Radeon RX 6900 XT | GeForce RTX 5080 |
|---|---|---|
| Architecture | RDNA 2 | Blackwell |
| VRAM | 16 GB GDDR6 | 16 GB GDDR7 |
| TBP | 300 W | 360 W |
| Release year | 2020 | — |
| CUDA cores | — | 10,752 |
| Memory bus | — | 256-bit |
| PCIe | — | PCIe 5.0 x16 |
Sapphire Nitro+ Radeon RX 6900 XT
Pros
- +More VRAM at price tier
- +FSR support
- +Driver open-source on Linux
Cons
- −RT trails NVIDIA
- −AI ecosystem smaller
- −Driver day-0 bugs
GeForce RTX 5080
Pros
- +Excellent 4K performance
- +DLSS 4 support
- +Cooler and quieter than 5090
Cons
- −Only 16 GB VRAM
- −Price creep vs 4080
- −Gap to 5090 is large
FAQ: Sapphire Nitro+ Radeon RX 6900 XT vs GeForce RTX 5080
Which is better, Sapphire Nitro+ Radeon RX 6900 XT or GeForce RTX 5080? +
GeForce RTX 5080 scores 93 on our weighted rubric — ahead by 11. Your best pick depends on the sub-scores above.
Is Sapphire Nitro+ Radeon RX 6900 XT worth the price? +
At $1,128, Sapphire Nitro+ Radeon RX 6900 XT delivers a Specdex score of 82 — strongest in raster.
Is GeForce RTX 5080 worth the price? +
At $999, GeForce RTX 5080 delivers a Specdex score of 93 — strongest in rt.
Does Sapphire Nitro+ Radeon RX 6900 XT or GeForce RTX 5080 last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.