AMD Radeon R9 285 vs AMD Radeon Pro Duo Polaris
GPU · Specs Compare
Graphics Card
Release Date
Sep 2014
Apr 2017
Generation
Volcanic Islands
Radeon Pro GCN
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1375 MHz
1750 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
176.0GB/s
224.0GB/s
Render Config
Compute Units
28
36
Shading Units
1792
2304
TMUs
112
144
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
29.38 GPixel/s
39.78 GPixel/s
Texture Rate
102.8 GTexel/s
179.0 GTexel/s
FP16 (half)
3.290 TFLOPS
5.728 TFLOPS
FP32 (float)
3.290 TFLOPS
5.728 TFLOPS
FP64 (double)
205.6 GFLOPS
358.0 GFLOPS
Graphics Processor
GPU Name
Tonga
Ellesmere
GPU Variant
Tonga PRO(215-0851128)
Ellesmere Gemini GL
Architecture
GCN 3.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
5 billion
5.7 billion
Die Size
366 mm²
232 mm²
Board Design
TDP
190W
250W
Suggested PSU
450 W
600 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2.170
1.3
Shader Model
6.5
6.7
▲ Specs Compare
Data sourced from official specifications and benchmark tests.