AMD Radeon R9 M385X vs AMD Radeon R9 285X
GPU Specs Compare
Graphics Card
Release Date
May 2015
Unknown
Generation
Gem System
Volcanic Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1000 MHz
-
Boost Clock
1100 MHz
-
Memory Clock
1200 MHz
1375 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
384bit
Bandwidth
76.80GB/s
264.0GB/s
Render Config
Compute Units
14
32
Shading Units
896
2048
TMUs
56
128
ROPs
16
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
768 KB
Theoretical Performance
Pixel Rate
17.60 GPixel/s
32.06 GPixel/s
Texture Rate
61.60 GTexel/s
128.3 GTexel/s
FP32 (float)
1.971 TFLOPS
4.104 TFLOPS
FP64 (double)
123.2 GFLOPS
-
Graphics Processor
GPU Name
Strato
Tonga
GPU Variant
Strato XT
Tonga XT(215-0851313)
Architecture
GCN 2.0
GCN 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.08 billion
5 billion
Die Size
160 mm²
366 mm²
Board Design
TDP
Unknown
200W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Suggested PSU
-
550 W
Power Connectors
-
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.2.170
1.2
Shader Model
6.5
6.3