NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon Sky 900
GPU Specs Compare
Graphics Card
Release Date
Jun 2025
Mar 2013
Generation
Navi IV
Radeon Sky
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1700 MHz
825 MHz
Boost Clock
3130 MHz
950 MHz
Memory Clock
2518 MHz
1250 MHz
Memory
Memory Size
8GB
3GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
384bit
Bandwidth
322.3GB/s
240.0GB/s
Render Config
SM Count
80
-
Compute Units
32
28
Shading Units
2048
1792
TMUs
128
112
ROPs
64
32
Tensor Cores
320
-
RT Cores
32
-
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
4 MB
768 KB
L3 Cache
32 MB
-
Theoretical Performance
Pixel Rate
200.3 GPixel/s
30.40 GPixel/s
Texture Rate
400.6 GTexel/s
106.4 GTexel/s
FP16 (half)
51.28 TFLOPS
-
FP32 (float)
25.64 TFLOPS
3.405 TFLOPS
FP64 (double)
801.3 GFLOPS
851.2 GFLOPS
Graphics Processor
GPU Name
Navi 44
Tahiti
GPU Variant
Navi 44 XT(215-176400102)
Orthrus
Architecture
RDNA 4.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
4 nm
28 nm
Transistors
29.7 billion
4.313 billion
Die Size
199 mm²
352 mm²
Board Design
TDP
150W
300W
Suggested PSU
450 W
700 W
Outputs
1x HDMI 2.1b2x DisplayPort 2.1a
1x DVI1x mini-DisplayPort 1.2
Power Connectors
1x 8-pin
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.2
1.2
Vulkan
1.3
1.2
CUDA
8.6
-
Shader Model
6.8
5.1
📊 Benchmark
Blender
5,956
-