Home GPU Comparison NVIDIA GeForce RTX 4080 vs AMD Radeon RX 6900 XT

NVIDIA GeForce RTX 4080 vs AMD Radeon RX 6900 XT

NVIDIA GeForce RTX 4080
VS
AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 4080
AMD Radeon RX 6900 XT
We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 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 4080 's Advantages
Released 1 years and 11 months late
Boost Clock has increased by 11% (2505MHz vs 2250MHz)
Larger VRAM bandwidth (716.8GB/s vs 512.0GB/s)
4608 additional rendering cores
AMD Radeon RX 6900 XT 's Advantages
Lower TDP (300W vs 320W)

Score

Benchmark

FP32 (float)
GeForce RTX 4080 +111%
48.74 TFLOPS
Radeon RX 6900 XT
23.04 TFLOPS
3DMark Time Spy
GeForce RTX 4080 +35%
28272
Radeon RX 6900 XT
20932
Shadow of the Tomb Raider 2160p
GeForce RTX 4080 +67%
132
Radeon RX 6900 XT
79
Shadow of the Tomb Raider 1440p
GeForce RTX 4080 +73%
246
Radeon RX 6900 XT
142
Shadow of the Tomb Raider 1080p
GeForce RTX 4080 +54%
300
Radeon RX 6900 XT
194
Cyberpunk 2077 2160p
GeForce RTX 4080 +10%
73
Radeon RX 6900 XT
66
Cyberpunk 2077 1440p
GeForce RTX 4080 +57%
121
Radeon RX 6900 XT
77
Cyberpunk 2077 1080p
GeForce RTX 4080 +55%
180
Radeon RX 6900 XT
116
Battlefield 5 2160p
GeForce RTX 4080 +7%
123
Radeon RX 6900 XT
114
Battlefield 5 1440p
GeForce RTX 4080
165
Radeon RX 6900 XT +21%
200
Battlefield 5 1080p
GeForce RTX 4080
188
Radeon RX 6900 XT +6%
201
GTA 5 2160p
GeForce RTX 4080
126
Radeon RX 6900 XT
127
GTA 5 1440p
GeForce RTX 4080 +19%
181
Radeon RX 6900 XT
152
GTA 5 1080p
GeForce RTX 4080
182
Radeon RX 6900 XT +3%
189
Horizon Forbidden West 1080p
GeForce RTX 4080 +18%
135
Radeon RX 6900 XT
114
Horizon Forbidden West 1440p
GeForce RTX 4080 +21%
108
Radeon RX 6900 XT
89
Horizon Forbidden West 2160p
GeForce RTX 4080 +28%
72
Radeon RX 6900 XT
56
GeForce RTX 4080
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

2205 MHz
Base Clock
1825 MHz
2505 MHz
Boost Clock
2250 MHz
1400 MHz
Memory Clock
2000 MHz

Memory

16GB
Memory Size
16GB
GDDR6X
Memory Type
GDDR6
256bit
Memory Bus
256bit
716.8GB/s
Bandwidth
512.0GB/s

Render Config

-
Compute Units
80
76
SM Count
-
9728
Shading Units
5120
304
TMUs
320
112
ROPs
128
304
Tensor Cores
-
76
RT Cores
80
128 KB (per SM)
L1 Cache
128 KB per Array
64 MB
L2 Cache
4 MB
-
L3 Cache
128 MB

Theoretical Performance

280.6 GPixel/s
Pixel Rate
288.0 GPixel/s
761.5 GTexel/s
Texture Rate
720.0 GTexel/s
48.74 TFLOPS
FP16 (half)
46.08 TFLOPS
48.74 TFLOPS
FP32 (float)
23.04 TFLOPS
761.5 GFLOPS
FP64 (double)
1440 GFLOPS

Board Design

320W
TDP
300W
700 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 Processor

AD103
GPU Name
Navi 21
AD103-300-A1
GPU Variant
Navi 21 XTX (215-121000167)
Ada Lovelace
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
5 nm
Process Size
7 nm
45.9 billion
Transistors
26.8 billion
379 mm²
Die Size
520 mm²

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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