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GeForce RTX 4080 Super — Ada · 16 GB GDDR6X · 320 W
NVIDIA

GeForce RTX 4080 Super

Ada · 16 GB GDDR6X · 320 W

93
/ 100
From $999
VS
GeForce RTX 4080 Super wins by 11
Sapphire Nitro+ Radeon RX 6900 XT — RDNA 2 · 16 GB GDDR6 · 300 W · Nitro+
Sapphire

Sapphire Nitro+ Radeon RX 6900 XT

RDNA 2 · 16 GB GDDR6 · 300 W · Nitro+

82
/ 100
From $1,128
Specdex verdict

GeForce RTX 4080 Super takes it — here’s why.

In our weighted Specdex score, GeForce RTX 4080 Super lands at 93 and Sapphire Nitro+ Radeon RX 6900 XT at 82. That puts GeForce RTX 4080 Super ahead by 11 points — a decisive margin driven mostly by its strengths in the categories below.

Pick GeForce RTX 4080 Super if…

  • ✓NVIDIA driver stack
  • ✓DLSS support on RTX
  • ✓Strong resale value

Pick Sapphire Nitro+ Radeon RX 6900 XT if…

  • ✓More VRAM at price tier
  • ✓FSR support
  • ✓Driver open-source on Linux
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

4K & rasterization

GeForce RTX 4080 Super

Traditional rendering throughput at high resolution

GeForce RTX 4080 Super leads on raster (93 vs 82).

Ray tracing

GeForce RTX 4080 Super

RT-heavy titles with path-traced lighting

GeForce RTX 4080 Super leads on rt (88 vs 72).

AI workloads

GeForce RTX 4080 Super

Local inference, upscaling, generative tools

GeForce RTX 4080 Super leads on ai (90 vs 67).

Power efficiency

Sapphire Nitro+ Radeon RX 6900 XT

Frames per watt — heat, noise, and PSU sizing

Sapphire Nitro+ Radeon RX 6900 XT leads on efficiency (76 vs 74).

Value for money

GeForce RTX 4080 Super

Specdex score per dollar at MSRP

GeForce RTX 4080 Super more score per dollar ($999 vs $1,128).

GeForce RTX 4080 Super 93
vs
82 Sapphire Nitro+ Radeon RX 6900 XT

Score breakdown

GeForce RTX 4080 Super
93
raster 93
rt 88
ai 90
efficiency 74
Sapphire Nitro+ Radeon RX 6900 XT
82
raster 82
rt 72
ai 67
efficiency 76

Specs side-by-side

GeForce RTX 4080 Super versus Sapphire Nitro+ Radeon RX 6900 XT — full spec comparison
Spec GeForce RTX 4080 Super Sapphire Nitro+ Radeon RX 6900 XT
Architecture
Ada
RDNA 2
VRAM
16 GB GDDR6X
16 GB GDDR6
TBP
320 W
300 W
Release year
2024
2020

GeForce RTX 4080 Super

Pros
  • +NVIDIA driver stack
  • +DLSS support on RTX
  • +Strong resale value
Cons
  • −Power draw scales with tier
  • −Gen-over-gen price creep
  • −VRAM gated per tier

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

FAQ: GeForce RTX 4080 Super vs Sapphire Nitro+ Radeon RX 6900 XT

Which is better, GeForce RTX 4080 Super or Sapphire Nitro+ Radeon RX 6900 XT? +

GeForce RTX 4080 Super scores 93 on our weighted rubric — ahead by 11. Your best pick depends on the sub-scores above.

Is GeForce RTX 4080 Super worth the price? +

At $999, GeForce RTX 4080 Super delivers a Specdex score of 93 — strongest in raster.

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.

Does GeForce RTX 4080 Super or Sapphire Nitro+ Radeon RX 6900 XT 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.

Which is better for 4K gaming, GeForce RTX 4080 Super or Sapphire Nitro+ Radeon RX 6900 XT? +

GeForce RTX 4080 Super — leads on raster (93 vs 82). Traditional rendering throughput at high resolution.

Which is better for ray tracing, GeForce RTX 4080 Super or Sapphire Nitro+ Radeon RX 6900 XT? +

GeForce RTX 4080 Super — leads on rt (88 vs 72). RT-heavy titles with path-traced lighting.