NVIDIA GeForce RTX 3080 Max Q vs AMD Radeon RX 455 OEM
GPU · Specs Compare
Graphics Card
Release Date
Jan 2021
Jun 2016
Generation
GeForce 30 Mobile
Arctic Islands
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
780 MHz
—
Boost Clock
1245 MHz
—
Memory Clock
1500 MHz
1625 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
128bit
Bandwidth
384.0GB/s
104.0GB/s
Render Config
SM Count
48
—
Shading Units
6144
768
TMUs
192
48
ROPs
96
16
Tensor Cores
192
—
RT Cores
48
—
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
4 MB
256 KB
Compute Units
—
12
Theoretical Performance
Pixel Rate
119.5 GPixel/s
16.80 GPixel/s
Texture Rate
239.0 GTexel/s
50.40 GTexel/s
FP16 (half)
15.30 TFLOPS
—
FP32 (float)
15.30 TFLOPS
1.613 TFLOPS
FP64 (double)
239.0 GFLOPS
100.8 GFLOPS
Graphics Processor
GPU Name
GA104
Tobago
GPU Variant
GA104-775-A1
Tobago PRO(215-0875010)
Architecture
Ampere
GCN 2.0
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
17.4 billion
2.08 billion
Die Size
392 mm²
160 mm²
Board Design
TDP
80W
100W
Outputs
No outputs
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin
Suggested PSU
—
300 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.0
Vulkan
1.3
1.2
CUDA
8.6
—
Shader Model
6.6
6.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.