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NVIDIA GeForce RTX 3090 Ti vs AMD Sapphire Nitro+ Radeon RX 6900 XT: Comparison
What is the difference between NVIDIA GeForce RTX 3090 Ti and AMD Sapphire Nitro+ Radeon RX 6900 XT?
Start with vram, because it is the widest measured gap between them: NVIDIA GeForce RTX 3090 Ti 24 GB against AMD Sapphire Nitro+ Radeon RX 6900 XT 16 GB, 33% in favour of NVIDIA GeForce RTX 3090 Ti. Blender Cycles (GPU) backs the spec sheet up. NVIDIA GeForce RTX 3090 Ti scores 5,553 to 2,603 over 139 runs, 53% clear.
Who each one is for
The NVIDIA GeForce RTX 3090 Ti is the one to take for gamers targeting the resolution this flagship tier is built for, though it is the wrong buy for 4K/high-refresh gamers if this card's tier sits below High-End. The same goes for builders who want 24GB 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. Buy the AMD Sapphire Nitro+ Radeon RX 6900 XT for gamers targeting the resolution this flagship 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 also earns its place with builders who want 16GB 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.
NVIDIA GeForce RTX 3090 Ti vs AMD Sapphire Nitro+ Radeon RX 6900 XT price
The NVIDIA GeForce RTX 3090 Ti asks 100% more, $1,999 against $999 for the AMD Sapphire Nitro+ Radeon RX 6900 XT.
Frequently asked questions
Do the NVIDIA GeForce RTX 3090 Ti and AMD Sapphire Nitro+ Radeon RX 6900 XT differ on tdp?
Yes. TDP reads 450 W on the NVIDIA GeForce RTX 3090 Ti versus 300 W on the AMD Sapphire Nitro+ Radeon RX 6900 XT.
Is the Ray Tracing Support the same on the NVIDIA GeForce RTX 3090 Ti and AMD Sapphire Nitro+ Radeon RX 6900 XT?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Specs and benchmarks
GPU Brand
- NVIDIA GeForce RTX 3090 Ti
- NVIDIA
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- AMD
Series
- NVIDIA GeForce RTX 3090 Ti
- GeForce RTX 30
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- Radeon RX 6000
Board Partner
- NVIDIA GeForce RTX 3090 Ti
- Reference / Founders Edition
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- Sapphire
VRAM
- NVIDIA GeForce RTX 3090 Ti
- 24 GBBest
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 16 GB-33%
Tier
- NVIDIA GeForce RTX 3090 Ti
- Flagship
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- Flagship
Memory Type
- NVIDIA GeForce RTX 3090 Ti
- GDDR6X
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- GDDR6
Boost Clock
- NVIDIA GeForce RTX 3090 Ti
- 1860 MHz-21%
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 2340 MHzBest
Ray Tracing Support
- NVIDIA GeForce RTX 3090 Ti
- Yes
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- Yes
TDP
- NVIDIA GeForce RTX 3090 Ti
- 450 W-50%
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 300 WBest
Architecture
- NVIDIA GeForce RTX 3090 Ti
- Ampere (GA102)
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- RDNA 2 (Navi 21)
Card Length
- NVIDIA GeForce RTX 3090 Ti
- 313 mm-9%
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 286 mmBest
Slot Width
- NVIDIA GeForce RTX 3090 Ti
- 3.5-40%
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 2.5Best
Shader Units
- NVIDIA GeForce RTX 3090 Ti
- 10752
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 5120
MSRP
- NVIDIA GeForce RTX 3090 Ti
- $1,999
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- $999
Benchmarks
- 3D Rendering
Blender Cycles (GPU)
- NVIDIA GeForce RTX 3090 Ti
- 5,553Best
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 2,603-53%
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 NVIDIA GeForce RTX 3090 Ti if you want the higher VRAM (24 GB vs 16 GB) and the higher blender cycles (GPU) (5,553 vs 2,603).
Choose AMD Sapphire Nitro+ Radeon RX 6900 XT if you want the higher boost clock (2340 MHz vs 1860 MHz), the lower TDP (300 W vs 450 W) and the lower card length (286 mm vs 313 mm).
Price comparison
| Retailer | NVIDIA GeForce RTX 3090 Ti | AMD Sapphire Nitro+ Radeon RX 6900 XT |
|---|---|---|
| Consumercarts listing | $1,999.00 View on Consumercarts listing | $999.00 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
NVIDIA GeForce RTX 3090 Ti
9 / 10 Expert Rating
A solid flagship pick if its price and 24GB VRAM allocation match your target resolution.
AMD Sapphire Nitro+ Radeon RX 6900 XT
9 / 10 Expert Rating
A solid flagship pick if its price and 16GB VRAM allocation match your target resolution.




