AMD Radeon R9 M390 Mac Edition vs ATI Radeon HD 5950
GPU Specs Compare
Graphics Card
Release Date
May 2015
Unknown
Generation
Crystal System
Evergreen
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1365 MHz
1000 MHz
Memory
Memory Size
2GB
1024MB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
174.7GB/s
128.0GB/s
Render Config
Compute Units
16
18
Shading Units
1024
1440
TMUs
64
72
ROPs
32
32
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
30.66 GPixel/s
23.20 GPixel/s
Texture Rate
61.31 GTexel/s
52.20 GTexel/s
FP32 (float)
1.962 TFLOPS
2.088 TFLOPS
FP64 (double)
122.6 GFLOPS
-
Graphics Processor
GPU Name
Pitcairn
Hemlock
GPU Variant
Pitcairn PRO(215-0828062)
Hemlock PRO(215-0735443)
Architecture
GCN 1.0
TeraScale 2
Foundry
TSMC
TSMC
Process Size
28 nm
40 nm
Transistors
2.8 billion
2.154 billion
Die Size
212 mm²
334 mm²
Board Design
TDP
80W
302W
Outputs
No outputs
2x DVI1x mini-DisplayPort 1.1
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
-
700 W
Graphics Features
DirectX
12 (11_1)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
1.2
1.2
Vulkan
1.2
N/A
Shader Model
5.1
5.0