AMD Radeon R9 M385X vs AMD Radeon R9 270 1024SP
GPU Specs Compare
Graphics Card
Release Date
May 2015
Mar 2015
Generation
Gem System
Volcanic Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1000 MHz
900 MHz
Boost Clock
1100 MHz
925 MHz
Memory Clock
1200 MHz
1200 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
256bit
Bandwidth
76.80GB/s
153.6GB/s
Render Config
Compute Units
14
16
Shading Units
896
1024
TMUs
56
64
ROPs
16
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
512 KB
Theoretical Performance
Pixel Rate
17.60 GPixel/s
29.60 GPixel/s
Texture Rate
61.60 GTexel/s
59.20 GTexel/s
FP32 (float)
1.971 TFLOPS
1.894 TFLOPS
FP64 (double)
123.2 GFLOPS
118.4 GFLOPS
Graphics Processor
GPU Name
Strato
Pitcairn
GPU Variant
Strato XT
Pitcairn PRO(215-0828062)
Architecture
GCN 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.08 billion
2.8 billion
Die Size
160 mm²
212 mm²
Board Design
TDP
Unknown
150W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Suggested PSU
-
450 W
Power Connectors
-
1x 6-pin
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.2.170
1.2
Shader Model
6.5
5.1