Home GPU Comparison NVIDIA GeForce RTX 3080 vs AMD Radeon RX 6900 XT

NVIDIA GeForce RTX 3080 vs AMD Radeon RX 6900 XT

NVIDIA GeForce RTX 3080
VS
AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 3080 AMD Radeon RX 6900 XT
We compared two Desktop platform GPUs: 10GB VRAM GeForce RTX 3080 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 3080 's Advantages
Larger VRAM bandwidth (760.3GB/s vs 512.0GB/s)
3584 additional rendering cores
AMD Radeon RX 6900 XT 's Advantages
Boost Clock has increased by 32% (2250MHz vs 1710MHz)
More VRAM (16GB vs 10GB)
Lower TDP (300W vs 320W)

Score

Benchmark

FP32 (float)
GeForce RTX 3080 +29%
29.77 TFLOPS
Radeon RX 6900 XT
23.04 TFLOPS
3DMark Time Spy
GeForce RTX 3080
17711
Radeon RX 6900 XT +18%
20902
Shadow of the Tomb Raider 2160p
GeForce RTX 3080
79
Radeon RX 6900 XT
79
Shadow of the Tomb Raider 1440p
GeForce RTX 3080
139
Radeon RX 6900 XT +2%
142
Shadow of the Tomb Raider 1080p
GeForce RTX 3080
181
Radeon RX 6900 XT +7%
194
Cyberpunk 2077 2160p
GeForce RTX 3080
61
Radeon RX 6900 XT +8%
66
Cyberpunk 2077 1440p
GeForce RTX 3080
72
Radeon RX 6900 XT +6%
77
Cyberpunk 2077 1080p
GeForce RTX 3080
106
Radeon RX 6900 XT +9%
116
Battlefield 5 2160p
GeForce RTX 3080
107
Radeon RX 6900 XT +6%
114
Battlefield 5 1440p
GeForce RTX 3080
162
Radeon RX 6900 XT +23%
200
Battlefield 5 1080p
GeForce RTX 3080
190
Radeon RX 6900 XT +5%
201
GTA 5 2160p
GeForce RTX 3080
93
Radeon RX 6900 XT +36%
127
GTA 5 1440p
GeForce RTX 3080
141
Radeon RX 6900 XT +7%
152
GTA 5 1080p
GeForce RTX 3080
172
Radeon RX 6900 XT +9%
189
Horizon Forbidden West 1080p
GeForce RTX 3080
95
Radeon RX 6900 XT +20%
114
Horizon Forbidden West 1440p
GeForce RTX 3080
75
Radeon RX 6900 XT +18%
89
Horizon Forbidden West 2160p
GeForce RTX 3080
50
Radeon RX 6900 XT +12%
56
GeForce RTX 3080
VS
Radeon RX 6900 XT

Graphics Card

Sep 2020
Release Date
Oct 2020
GeForce 30
Generation
Navi II
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16

Clock Speeds

1440 MHz
Base Clock
1825 MHz
1710 MHz
Boost Clock
2250 MHz
1188 MHz
Memory Clock
2000 MHz

Memory

10GB
Memory Size
16GB
GDDR6X
Memory Type
GDDR6
320bit
Memory Bus
256bit
760.3GB/s
Bandwidth
512.0GB/s

Render Config

68
SM Count
-
-
Compute Units
80
8704
Shading Units
5120
272
TMUs
320
96
ROPs
128
272
Tensor Cores
-
68
RT Cores
80
128 KB (per SM)
L1 Cache
128 KB per Array
5 MB
L2 Cache
4 MB

Theoretical Performance

164.2 GPixel/s
Pixel Rate
288.0 GPixel/s
465.1 GTexel/s
Texture Rate
720.0 GTexel/s
29.77 TFLOPS
FP16 (half)
46.08 TFLOPS
29.77 TFLOPS
FP32 (float)
23.04 TFLOPS
465.1 GFLOPS
FP64 (double)
1440 GFLOPS

Graphics Processor

GA102
GPU Name
Navi 21
GA102-200-KD-A1
GPU Variant
Navi 21 XTX (215-121000167)
Ampere
Architecture
RDNA 2.0
Samsung
Foundry
TSMC
8 nm
Process Size
7 nm
28.3 billion
Transistors
26.8 billion
628 mm²
Die Size
520 mm²

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 12-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
8.6
CUDA
-
6.6
Shader Model
6.5

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