Product Compare

NVIDIA GeForce RTX 5080 Mobile vs AMD Radeon R9 285X

GPU GPU
Graphics Card
Release Date Apr 2025 Unknown
Generation GeForce 50 Mobile Volcanic Islands
Type Mobile Desktop
Bus Interface PCIe 5.0 x16 PCIe 3.0 x16
Clock Speeds
Base Clock 975 MHz
Boost Clock 1500 MHz
Memory Clock 1750 MHz 1375 MHz
Memory
Memory Size 16GB 3GB
Memory Type GDDR7 GDDR5
Memory Bus 256bit 384bit
Bandwidth 896.0GB/s 264.0GB/s
Render Config
SM Count 60
Shading Units 7680 2048
TMUs 240 128
ROPs 96 32
Tensor Cores 240
RT Cores 60
L1 Cache 128 KB (per SM) 16 KB (per CU)
L2 Cache 64 MB 768 KB
Compute Units 32
Theoretical Performance
Pixel Rate 144.0 GPixel/s 32.06 GPixel/s
Texture Rate 360.0 GTexel/s 128.3 GTexel/s
FP16 (half) 23.04 TFLOPS
FP32 (float) 23.04 TFLOPS 4.104 TFLOPS
FP64 (double) 360.0 GFLOPS
Graphics Processor
GPU Name GB203 Tonga
Architecture Blackwell 2.0 GCN 3.0
Foundry TSMC TSMC
Process Size 5 nm 28 nm
Transistors 45.6 billion 5 billion
Die Size 378 mm² 366 mm²
GPU Variant Tonga XT(215-0851313)
Board Design
TDP 80W 200W
Suggested PSU 550 W 550 W
Outputs Portable Device Dependent 2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors None 1x 6-pin + 1x 8-pin
Graphics Features
DirectX 12 Ultimate (12_2) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 3.0 2.0
Vulkan 1.4 1.2
CUDA 12.0
Shader Model 6.8 6.3