Product Compare

AMD Radeon R9 285X vs AMD Radeon 780M

GPU GPU
Graphics Card
Release Date Unknown Jan 2023
Generation Volcanic Islands Navi III IGP
Type Desktop Integrated
Bus Interface PCIe 3.0 x16 PCIe 4.0 x8
Clock Speeds
Memory Clock 1375 MHz System Shared
Base Clock 800 MHz
Boost Clock 2700 MHz
Memory
Memory Size 3GB System Shared
Memory Type GDDR5 System Shared
Memory Bus 384bit System Shared
Bandwidth 264.0GB/s System Dependent
Render Config
Compute Units 32 12
Shading Units 2048 768
TMUs 128 48
ROPs 32 32
L1 Cache 16 KB (per CU) 128 KB per Array
L2 Cache 768 KB 2 MB
RT Cores 12
Theoretical Performance
Pixel Rate 32.06 GPixel/s 86.40 GPixel/s
Texture Rate 128.3 GTexel/s 129.6 GTexel/s
FP32 (float) 4.104 TFLOPS 8.294 TFLOPS
FP16 (half) 16.59 TFLOPS
FP64 (double) 518.4 GFLOPS
Graphics Processor
GPU Name Tonga Phoenix
GPU Variant Tonga XT(215-0851313)
Architecture GCN 3.0 RDNA 3.0
Foundry TSMC TSMC
Process Size 28 nm 4 nm
Transistors 5 billion 25.39 billion
Die Size 366 mm² 178 mm²
Board Design
TDP 200W 15W
Suggested PSU 550 W
Outputs 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 Portable Device Dependent
Power Connectors 1x 6-pin + 1x 8-pin None
Graphics Features
DirectX 12 (12_0) 12 Ultimate (12_2)
OpenGL 4.6 4.6
OpenCL 2.0 2.1
Vulkan 1.2 1.3
Shader Model 6.3 6.7