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AMD Radeon RX 7900 XT vs NVIDIA Gainward Phantom+ GeForce RTX 3080: Comparison
What is the difference between AMD Radeon RX 7900 XT and NVIDIA Gainward Phantom+ GeForce RTX 3080?
On vram the spread is 50%, AMD Radeon RX 7900 XT 20 GB against NVIDIA Gainward Phantom+ GeForce RTX 3080 10 GB, so AMD Radeon RX 7900 XT takes it. Blender Cycles (GPU) backs the spec sheet up. NVIDIA Gainward Phantom+ GeForce RTX 3080 scores 4,529 to 3,626 over 579 runs, 20% clear.
Which should you buy, AMD Radeon RX 7900 XT or NVIDIA Gainward Phantom+ GeForce RTX 3080?
Buy the AMD Radeon RX 7900 XT for gamers targeting the resolution this high-end tier is built for, though it is not the pick for 4K/high-refresh gamers if this card's tier sits below High-End. It is equally the pick for builders who want 20GB of VRAM without moving up a tier. It is not the one for buyers who need the absolute best price-to-performance and should compare street prices first. The NVIDIA Gainward Phantom+ GeForce RTX 3080 is the one to take for gamers targeting the resolution this high-end tier is built for, though it is the wrong buy for 4K/high-refresh gamers if this card's tier sits below High-End. It also earns its place with builders who want 10GB of VRAM without moving up a tier. It is the wrong buy for buyers who need the absolute best price-to-performance and should compare street prices first.
Which is cheaper, AMD Radeon RX 7900 XT or NVIDIA Gainward Phantom+ GeForce RTX 3080?
Cost splits them too. NVIDIA Gainward Phantom+ GeForce RTX 3080 sits at $699, AMD Radeon RX 7900 XT at $749, 7% more.
Frequently asked questions
Do the AMD Radeon RX 7900 XT and NVIDIA Gainward Phantom+ GeForce RTX 3080 differ on boost clock?
Yes. Boost Clock reads 2400 MHz on the AMD Radeon RX 7900 XT versus 1740 MHz on the NVIDIA Gainward Phantom+ GeForce RTX 3080.
Is the Ray Tracing Support the same on the AMD Radeon RX 7900 XT and NVIDIA Gainward Phantom+ GeForce RTX 3080?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Specs and benchmarks
GPU Brand
- AMD Radeon RX 7900 XT
- AMD
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- NVIDIA
Series
- AMD Radeon RX 7900 XT
- Radeon RX 7000
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- GeForce RTX 30
Board Partner
- AMD Radeon RX 7900 XT
- Reference
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- Gainward
VRAM
- AMD Radeon RX 7900 XT
- 20 GBBest
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- 10 GB-50%
Tier
- AMD Radeon RX 7900 XT
- High End
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- High-End
Memory Type
- AMD Radeon RX 7900 XT
- GDDR6
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- GDDR6X
Boost Clock
- AMD Radeon RX 7900 XT
- 2400 MHzBest
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- 1740 MHz-28%
Ray Tracing Support
- AMD Radeon RX 7900 XT
- Yes
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- Yes
TDP
- AMD Radeon RX 7900 XT
- 315 WBest
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- 320 W-2%
Architecture
- AMD Radeon RX 7900 XT
- RDNA 3
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- Ampere (GA102)
Card Length
- AMD Radeon RX 7900 XT
- 276 mmBest
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- 305 mm-11%
Slot Width
- AMD Radeon RX 7900 XT
- 2.5
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- 2.5
Shader Units
- AMD Radeon RX 7900 XT
- 5376
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- 8704
MSRP
- AMD Radeon RX 7900 XT
- $749
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- $699
Benchmarks
- 3D Rendering
Blender Cycles (GPU)
- AMD Radeon RX 7900 XT
- 3,626-20%
- NVIDIA Gainward Phantom+ GeForce RTX 3080
- 4,529Best
Blender 4.5, Blender Open Data (CC0). Median of monster + junkshop + classroom, combined samples/min.
Renders a 3D scene on the graphics card. Shows speed in Blender and similar 3D apps, not in games.
Which one should you pick?
Choose AMD Radeon RX 7900 XT if you want the higher VRAM (20 GB vs 10 GB), the higher boost clock (2400 MHz vs 1740 MHz) and the lower TDP (315 W vs 320 W).
Choose NVIDIA Gainward Phantom+ GeForce RTX 3080 if you want the higher blender cycles (GPU) (4,529 vs 3,626).
Price comparison
| Retailer | AMD Radeon RX 7900 XT | NVIDIA Gainward Phantom+ GeForce RTX 3080 |
|---|---|---|
| Consumercarts listing | $749.00 View on Consumercarts listing | $699.00 View on Consumercarts listing |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
AMD Radeon RX 7900 XT
8 / 10 Expert Rating
A solid high-end pick if its price and 20GB VRAM allocation match your target resolution.
NVIDIA Gainward Phantom+ GeForce RTX 3080
8 / 10 Expert Rating
A solid high-end pick if its price and 10GB VRAM allocation match your target resolution.




