Home GPU Comparison NVIDIA GeForce RTX 3080 vs AMD Radeon RX 6600 XT

NVIDIA GeForce RTX 3080 vs AMD Radeon RX 6600 XT

NVIDIA GeForce RTX 3080
VS
AMD Radeon RX 6600 XT
NVIDIA GeForce RTX 3080 AMD Radeon RX 6600 XT
We compared two Desktop platform GPUs: 10GB VRAM GeForce RTX 3080 and 8GB VRAM Radeon RX 6600 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 's Advantages
More VRAM (10GB vs 8GB)
Larger VRAM bandwidth (760.3GB/s vs 256.0GB/s)
6656 additional rendering cores
AMD Radeon RX 6600 XT 's Advantages
Released 10 months late
Boost Clock has increased by 51% (2589MHz vs 1710MHz)
Lower TDP (160W vs 320W)

Score

Benchmark

FP32 (float)
GeForce RTX 3080 +180%
29.77 TFLOPS
Radeon RX 6600 XT
10.6 TFLOPS
3DMark Time Spy
GeForce RTX 3080 +85%
17724
Radeon RX 6600 XT
9578
Shadow of the Tomb Raider 2160p
GeForce RTX 3080 +107%
79
Radeon RX 6600 XT
38
Shadow of the Tomb Raider 1440p
GeForce RTX 3080 +93%
139
Radeon RX 6600 XT
72
Shadow of the Tomb Raider 1080p
GeForce RTX 3080 +52%
181
Radeon RX 6600 XT
119
Cyberpunk 2077 2160p
GeForce RTX 3080 +110%
61
Radeon RX 6600 XT
29
Cyberpunk 2077 1440p
GeForce RTX 3080 +100%
72
Radeon RX 6600 XT
36
Cyberpunk 2077 1080p
GeForce RTX 3080 +82%
106
Radeon RX 6600 XT
58
Battlefield 5 2160p
GeForce RTX 3080 +84%
107
Radeon RX 6600 XT
58
Battlefield 5 1440p
GeForce RTX 3080 +45%
162
Radeon RX 6600 XT
111
Battlefield 5 1080p
GeForce RTX 3080 +31%
190
Radeon RX 6600 XT
144
GTA 5 2160p
GeForce RTX 3080 +52%
93
Radeon RX 6600 XT
61
GTA 5 1440p
GeForce RTX 3080 +71%
141
Radeon RX 6600 XT
82
GTA 5 1080p
GeForce RTX 3080 +15%
172
Radeon RX 6600 XT
149
Horizon Forbidden West 1080p
GeForce RTX 3080 +48%
95
Radeon RX 6600 XT
64
Horizon Forbidden West 1440p
GeForce RTX 3080 +56%
75
Radeon RX 6600 XT
48
Horizon Forbidden West 2160p
GeForce RTX 3080 +92%
50
Radeon RX 6600 XT
26
GeForce RTX 3080
VS
Radeon RX 6600 XT

Graphics Card

Sep 2020
Release Date
Jul 2021
GeForce 30
Generation
Navi II
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x8

Clock Speeds

1440 MHz
Base Clock
1968 MHz
1710 MHz
Boost Clock
2589 MHz
1188 MHz
Memory Clock
2000 MHz

Memory

10GB
Memory Size
8GB
GDDR6X
Memory Type
GDDR6
320bit
Memory Bus
128bit
760.3GB/s
Bandwidth
256.0GB/s

Render Config

68
SM Count
-
-
Compute Units
32
8704
Shading Units
2048
272
TMUs
128
96
ROPs
64
272
Tensor Cores
-
68
RT Cores
32
128 KB (per SM)
L1 Cache
128 KB per Array
5 MB
L2 Cache
2 MB

Theoretical Performance

164.2 GPixel/s
Pixel Rate
165.7 GPixel/s
465.1 GTexel/s
Texture Rate
331.4 GTexel/s
29.77 TFLOPS
FP16 (half)
21.21 TFLOPS
29.77 TFLOPS
FP32 (float)
10.60 TFLOPS
465.1 GFLOPS
FP64 (double)
662.8 GFLOPS

Graphics Processor

GA102
GPU Name
Navi 23
GA102-200-KD-A1
GPU Variant
Navi 23 XT (215-130000006)
Ampere
Architecture
RDNA 2.0
Samsung
Foundry
TSMC
8 nm
Process Size
7 nm
28.3 billion
Transistors
11.06 billion
628 mm²
Die Size
237 mm²

Board Design

320W
TDP
160W
700 W
Suggested PSU
450 W
1x HDMI 2.1 3x DisplayPort 1.4a
Outputs
1x HDMI 2.1 3x DisplayPort 1.4a
1x 12-pin
Power Connectors
1x 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
6.7

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