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AMD Sapphire Nitro+ Radeon RX 6900 XT vs NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090: Comparison
What is the difference between AMD Sapphire Nitro+ Radeon RX 6900 XT and NVIDIA Zotac AMP Extreme Airo GeForce RTX?
The gap that matters here is vram: AMD Sapphire Nitro+ Radeon RX 6900 XT 16 GB against NVIDIA Zotac AMP Extreme Airo GeForce RTX 24 GB, which puts NVIDIA Zotac AMP Extreme Airo GeForce RTX 33% ahead. Measured rather than claimed: in Blender Cycles (GPU) the NVIDIA Zotac AMP Extreme Airo GeForce RTX returns 11,062 against 2,603 over 526 runs, a 76% lead.
Who each one is for
The AMD Sapphire Nitro+ Radeon RX 6900 XT suits 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 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. Buy the NVIDIA Zotac AMP Extreme Airo GeForce RTX for gamers targeting the resolution this flagship tier is built for, though it is not built for 4K/high-refresh gamers if this card's tier sits below High-End. It is equally the pick 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.
Which is cheaper, AMD Sapphire Nitro+ Radeon RX 6900 XT or NVIDIA Zotac AMP Extreme Airo GeForce RTX?
The NVIDIA Zotac AMP Extreme Airo GeForce RTX asks 60% more, $1,599 against $999 for the AMD Sapphire Nitro+ Radeon RX 6900 XT.
Frequently asked questions
Do the AMD Sapphire Nitro+ Radeon RX 6900 XT and NVIDIA Zotac AMP Extreme Airo GeForce RTX differ on tdp?
Yes. TDP reads 300 W on the AMD Sapphire Nitro+ Radeon RX 6900 XT versus 450 W on the NVIDIA Zotac AMP Extreme Airo GeForce RTX.
Is the Ray Tracing Support the same on the AMD Sapphire Nitro+ Radeon RX 6900 XT and NVIDIA Zotac AMP Extreme Airo GeForce RTX?
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 Sapphire Nitro+ Radeon RX 6900 XT
- AMD
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- NVIDIA
Series
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- Radeon RX 6000
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- GeForce RTX 40
Board Partner
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- Sapphire
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- Zotac
VRAM
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 16 GB-33%
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- 24 GBBest
Tier
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- Flagship
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- Flagship
Memory Type
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- GDDR6
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- GDDR6X
Boost Clock
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 2340 MHz-10%
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- 2595 MHzBest
Ray Tracing Support
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- Yes
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- Yes
TDP
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 300 WBest
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- 450 W-50%
Architecture
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- RDNA 2 (Navi 21)
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- Ada Lovelace (AD102)
Card Length
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 286 mmBest
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- 348 mm-22%
Slot Width
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 2.5Best
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- 3.5-40%
Shader Units
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 5120
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- 16384
MSRP
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- $999
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- $1,599
Benchmarks
- 3D Rendering
Blender Cycles (GPU)
- AMD Sapphire Nitro+ Radeon RX 6900 XT
- 2,603-76%
- NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
- 11,062Best
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 Sapphire Nitro+ Radeon RX 6900 XT if you want the lower TDP (300 W vs 450 W), the lower card length (286 mm vs 348 mm) and the lower slot width (2.5 vs 3.5).
Choose NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090 if you want the higher VRAM (24 GB vs 16 GB), the higher boost clock (2595 MHz vs 2340 MHz) and the higher blender cycles (GPU) (11,062 vs 2,603).
Price comparison
| Retailer | AMD Sapphire Nitro+ Radeon RX 6900 XT | NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090 |
|---|---|---|
| Consumercarts listing | $999.00 View on Consumercarts listing | $1,599.00 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 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.
NVIDIA Zotac AMP Extreme Airo GeForce RTX 4090
9 / 10 Expert Rating
A solid flagship pick if its price and 24GB VRAM allocation match your target resolution.




