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GPU Comparison
AMD Radeon R9 M390 Mac Edition vs AMD Radeon R7 M260
AMD Radeon R9 M390 Mac Edition vs AMD Radeon R7 M260
VS
AMD Radeon R9 M390 Mac Edition
AMD Radeon R7 M260
We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 2GB VRAM Radeon R7 M260 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M390 Mac Edition 's Advantages
Released 11 months late
Larger VRAM bandwidth (174.7GB/s vs 14.40GB/s)
640 additional rendering cores
AMD Radeon R7 M260 's Advantages
Boost Clock980MHz
Score
Benchmark
FP32 (float)
Radeon R9 M390 Mac Edition
+160%
1.962 TFLOPS
Radeon R7 M260
0.752 TFLOPS
Radeon R9 M390 Mac Edition
VS
Radeon R7 M260
Graphics Card
May 2015
Release Date
Jun 2014
Crystal System
Generation
Gem System
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
940 MHz
-
Boost Clock
980 MHz
1365 MHz
Memory Clock
900 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
174.7GB/s
Bandwidth
14.40GB/s
Render Config
16
Compute Units
6
-
-
-
1024
Shading Units
384
64
TMUs
24
32
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
30.66 GPixel/s
Pixel Rate
7.840 GPixel/s
61.31 GTexel/s
Texture Rate
23.52 GTexel/s
-
FP16 (half)
752.6 GFLOPS
1.962 TFLOPS
FP32 (float)
752.6 GFLOPS
122.6 GFLOPS
FP64 (double)
47.04 GFLOPS
Board Design
80W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Processor
Pitcairn
GPU Name
Topaz
Pitcairn PRO (215-0828062)
GPU Variant
Topaz XT (216-0858020)
GCN 1.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.8 billion
Transistors
1.55 billion
212 mm²
Die Size
125 mm²
Graphics Features
12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
1.2
OpenCL
2.1
1.2
Vulkan
1.2.170
-
-
-
5.1
Shader Model
6.5
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7
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8
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9
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10
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