AMD Radeon RX 6600 XT vs NVIDIA GeForce RTX 5080 SUPER
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT and 24GB VRAM GeForce RTX 5080 SUPER to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6600 XT 's Advantages
Lower TDP (160W vs 360W)
NVIDIA GeForce RTX 5080 SUPER 's Advantages
Boost Clock has increased by 1% (2617MHz vs 2589MHz)
More VRAM (24GB vs 8GB)
Larger VRAM bandwidth (1.02TB/s vs 256.0GB/s)
8704 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 6600 XT
10.6 TFLOPS
GeForce RTX 5080 SUPER
+430%
56.28 TFLOPS
Graphics Card
Jul 2021
Release Date
Unknown
Navi II
Generation
GeForce 50
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 5.0 x16
Clock Speeds
1968 MHz
Base Clock
2295 MHz
2589 MHz
Boost Clock
2617 MHz
2000 MHz
Memory Clock
2000 MHz
Memory
8GB
Memory Size
24GB
GDDR6
Memory Type
GDDR7
128bit
Memory Bus
256bit
256.0GB/s
Bandwidth
1.02TB/s
Render Config
32
Compute Units
-
-
SM Count
84
2048
Shading Units
10752
128
TMUs
336
64
ROPs
112
-
Tensor Cores
336
32
RT Cores
84
128 KB per Array
L1 Cache
128 KB (per SM)
2 MB
L2 Cache
64 MB
32 MB
L3 Cache
-
Theoretical Performance
165.7 GPixel/s
Pixel Rate
293.1 GPixel/s
331.4 GTexel/s
Texture Rate
879.3 GTexel/s
21.21 TFLOPS
FP16 (half)
56.28 TFLOPS
10.60 TFLOPS
FP32 (float)
56.28 TFLOPS
662.8 GFLOPS
FP64 (double)
879.3 GFLOPS
Board Design
160W
TDP
360W
450 W
Suggested PSU
750 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
1x HDMI 2.1b
3x DisplayPort 2.1b
1x 8-pin
Power Connectors
1x 16-pin
Graphics Processor
Navi 23
GPU Name
GB203
Navi 23 XT
(215-130000006)
GPU Variant
GB203-450-A1
RDNA 2.0
Architecture
Blackwell 2.0
TSMC
Foundry
TSMC
7 nm
Process Size
5 nm
11.06 billion
Transistors
45.6 billion
237 mm²
Die Size
378 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.3
Vulkan
1.4
-
CUDA
12.0
6.7
Shader Model
6.8
