AMD Radeon Sky 500 vs AMD Radeon R9 M270X
GPU · Specs Compare
Graphics Card
Release Date
Mar 2013
Feb 2015
Generation
Radeon Sky
Gem System
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1200 MHz
1375 MHz
Base Clock
—
900 MHz
Boost Clock
—
1000 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
153.6GB/s
88.00GB/s
Render Config
Compute Units
20
12
Shading Units
1280
768
TMUs
80
48
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
256 KB
Theoretical Performance
Pixel Rate
30.40 GPixel/s
16.00 GPixel/s
Texture Rate
76.00 GTexel/s
48.00 GTexel/s
FP32 (float)
2.432 TFLOPS
1.536 TFLOPS
FP64 (double)
152.0 GFLOPS
96.00 GFLOPS
Graphics Processor
GPU Name
Pitcairn
Saturn
GPU Variant
Pitcairn XT GL(215-0828073)
Saturn PRO(216-0843044)
Architecture
GCN 1.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
2.08 billion
Die Size
212 mm²
160 mm²
Board Design
TDP
150W
Unknown
Suggested PSU
450 W
—
Outputs
1x DisplayPort 1.2
Portable Device Dependent
Power Connectors
1x 6-pin
—
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.2.170
Shader Model
5.1
6.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.