AMD Radeon R9 280X2 vs NVIDIA GeForce RTX 3080 Mobile
GPU Specs Compare
Graphics Card
Release Date
Unknown
Jan 2021
Generation
Volcanic Islands
GeForce 30 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
950 MHz
1110 MHz
Boost Clock
1000 MHz
1545 MHz
Memory Clock
1500 MHz
1750 MHz
Memory
Memory Size
3GB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
384bit
256bit
Bandwidth
288.0GB/s
448.0GB/s
Render Config
Compute Units
32
-
Shading Units
2048
6144
TMUs
128
192
ROPs
32
96
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
768 KB
4 MB
SM Count
-
48
Tensor Cores
-
192
RT Cores
-
48
Theoretical Performance
Pixel Rate
32.00 GPixel/s
148.3 GPixel/s
Texture Rate
128.0 GTexel/s
296.6 GTexel/s
FP32 (float)
4.096 TFLOPS
18.98 TFLOPS
FP64 (double)
1024 GFLOPS
296.6 GFLOPS
FP16 (half)
-
18.98 TFLOPS
Graphics Processor
GPU Name
Tahiti
GA104
GPU Variant
Tahiti XTL(215-0821065)
GA104-775-A1
Architecture
GCN 1.0
Ampere
Foundry
TSMC
Samsung
Process Size
28 nm
8 nm
Transistors
4.313 billion
17.4 billion
Die Size
352 mm²
392 mm²
Board Design
TDP
375W
115W
Suggested PSU
750 W
-
Outputs
6x mini-DisplayPort 1.2
No outputs
Power Connectors
3x 8-pin
None
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.3
Shader Model
5.1
6.6
CUDA
-
8.6