Home GPU Comparison NVIDIA GeForce RTX 4090 vs AMD Radeon RX 6900 XT

NVIDIA GeForce RTX 4090 vs AMD Radeon RX 6900 XT

NVIDIA GeForce RTX 4090
VS
AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 4090 AMD Radeon RX 6900 XT
We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 and 16GB VRAM Radeon RX 6900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 's Advantages
Released 1 years and 11 months late
Boost Clock has increased by 12% (2520MHz vs 2250MHz)
More VRAM (24GB vs 16GB)
11264 additional rendering cores
AMD Radeon RX 6900 XT 's Advantages
Larger VRAM bandwidth (512.0TB/s vs 1.01TB/s)
Lower TDP (300W vs 450W)

Score

Benchmark

FP32 (float)
GeForce RTX 4090 +258%
82.58 TFLOPS
Radeon RX 6900 XT
23.04 TFLOPS
3DMark Time Spy
GeForce RTX 4090 +74%
36549
Radeon RX 6900 XT
20902
Blender
GeForce RTX 4090 +348%
12921
Radeon RX 6900 XT
2883
Shadow of the Tomb Raider 2160p
GeForce RTX 4090 +134%
185
Radeon RX 6900 XT
79
Shadow of the Tomb Raider 1440p
GeForce RTX 4090 +97%
280
Radeon RX 6900 XT
142
Shadow of the Tomb Raider 1080p
GeForce RTX 4090 +56%
304
Radeon RX 6900 XT
194
Cyberpunk 2077 2160p
GeForce RTX 4090 +42%
94
Radeon RX 6900 XT
66
Cyberpunk 2077 1440p
GeForce RTX 4090 +140%
185
Radeon RX 6900 XT
77
Cyberpunk 2077 1080p
GeForce RTX 4090 +68%
195
Radeon RX 6900 XT
116
Battlefield 5 2160p
GeForce RTX 4090 +63%
186
Radeon RX 6900 XT
114
Battlefield 5 1440p
GeForce RTX 4090 +1%
203
Radeon RX 6900 XT
200
Battlefield 5 1080p
GeForce RTX 4090 +5%
213
Radeon RX 6900 XT
201
GTA 5 2160p
GeForce RTX 4090 +31%
167
Radeon RX 6900 XT
127
GTA 5 1440p
GeForce RTX 4090 +21%
185
Radeon RX 6900 XT
152
GTA 5 1080p
GeForce RTX 4090
186
Radeon RX 6900 XT +1%
189
Horizon Forbidden West 1080p
GeForce RTX 4090 +39%
159
Radeon RX 6900 XT
114
Horizon Forbidden West 1440p
GeForce RTX 4090 +51%
135
Radeon RX 6900 XT
89
Horizon Forbidden West 2160p
GeForce RTX 4090 +64%
92
Radeon RX 6900 XT
56
GeForce RTX 4090
VS
Radeon RX 6900 XT

Graphics Card

Sep 2022
Release Date
Oct 2020
GeForce 40
Generation
Navi II
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16

Clock Speeds

2235 MHz
Base Clock
1825 MHz
2520 MHz
Boost Clock
2250 MHz
1313 MHz
Memory Clock
2000 MHz

Memory

24GB
Memory Size
16GB
GDDR6X
Memory Type
GDDR6
384bit
Memory Bus
256bit
1.01TB/s
Bandwidth
512.0GB/s

Render Config

128
SM Count
-
-
Compute Units
80
16384
Shading Units
5120
512
TMUs
320
176
ROPs
128
512
Tensor Cores
-
128
RT Cores
80
128 KB (per SM)
L1 Cache
128 KB per Array
72 MB
L2 Cache
4 MB

Theoretical Performance

443.5 GPixel/s
Pixel Rate
288.0 GPixel/s
1290 GTexel/s
Texture Rate
720.0 GTexel/s
82.58 TFLOPS
FP16 (half)
46.08 TFLOPS
82.58 TFLOPS
FP32 (float)
23.04 TFLOPS
1290 GFLOPS
FP64 (double)
1440 GFLOPS

Graphics Processor

AD102
GPU Name
Navi 21
AD102-300-A1
GPU Variant
Navi 21 XTX (215-121000167)
Ada Lovelace
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
5 nm
Process Size
7 nm
76.3 billion
Transistors
26.8 billion
609 mm²
Die Size
520 mm²

Board Design

450W
TDP
300W
850 W
Suggested PSU
700 W
1x HDMI 2.1 3x DisplayPort 1.4a
Outputs
1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C
1x 16-pin
Power Connectors
2x 8-pin

Graphics Features

12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
2.1
1.3
Vulkan
1.3
8.9
CUDA
-
6.7
Shader Model
6.5

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