Product Compare

ATI Radeon HD 5850 vs AMD Radeon R9 M395X Mac Edition

GPU GPU
Graphics Card
Release Date Sep 2009 May 2015
Generation Evergreen Crystal System
Type Desktop Mobile
Bus Interface PCIe 2.0 x16 MXM-B (3.0)
Clock Speeds
Memory Clock 1000 MHz 1365 MHz
Memory
Memory Size 1024MB 4GB
Memory Type GDDR5 GDDR5
Memory Bus 256bit 256bit
Bandwidth 128.0GB/s 174.7GB/s
Render Config
Compute Units 18 32
Shading Units 1440 2048
TMUs 72 128
ROPs 32 32
L1 Cache 8 KB (per CU) 16 KB (per CU)
L2 Cache 512 KB 512 KB
Theoretical Performance
Pixel Rate 23.20 GPixel/s 29.09 GPixel/s
Texture Rate 52.20 GTexel/s 116.4 GTexel/s
FP32 (float) 2.088 TFLOPS 3.723 TFLOPS
FP64 (double) 417.6 GFLOPS 232.7 GFLOPS
FP16 (half) 3.723 TFLOPS
Graphics Processor
GPU Name Cypress Amethyst
GPU Variant Cypress PRO(215-0735043) Amethyst XT
Architecture TeraScale 2 GCN 3.0
Foundry TSMC TSMC
Process Size 40 nm 28 nm
Transistors 2.154 billion 5 billion
Die Size 334 mm² 366 mm²
Board Design
TDP 151W 250W
Suggested PSU 450 W
Outputs 2x DVI1x HDMI 1.3a1x DisplayPort 1.1 No outputs
Power Connectors 2x 6-pin None
Graphics Features
DirectX 11.2 (11_0) 12 (12_0)
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan N/A 1.2
Shader Model 5.0 6.3