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GPU Comparison
AMD Radeon R9 M390X vs AMD Radeon R7 M260
AMD Radeon R9 M390X vs AMD Radeon R7 M260
VS
AMD Radeon R9 M390X
AMD Radeon R7 M260
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M390X 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 M390X 's Advantages
Released 11 months late
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (160.0GB/s vs 14.40GB/s)
1664 additional rendering cores
AMD Radeon R7 M260 's Advantages
Boost Clock980MHz
Score
Benchmark
FP32 (float)
Radeon R9 M390X
+293%
2.961 TFLOPS
Radeon R7 M260
0.752 TFLOPS
Radeon R9 M390X
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
1250 MHz
Memory Clock
900 MHz
Memory
4GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
160.0GB/s
Bandwidth
14.40GB/s
Render Config
-
SM Count
-
32
Compute Units
6
2048
Shading Units
384
128
TMUs
24
32
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
128 KB
Theoretical Performance
23.14 GPixel/s
Pixel Rate
7.840 GPixel/s
92.54 GTexel/s
Texture Rate
23.52 GTexel/s
2.961 TFLOPS
FP16 (half)
752.6 GFLOPS
2.961 TFLOPS
FP32 (float)
752.6 GFLOPS
185.1 GFLOPS
FP64 (double)
47.04 GFLOPS
Graphics Processor
Amethyst
GPU Name
Topaz
Amethyst XT
GPU Variant
Topaz XT (216-0858020)
GCN 3.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
1.55 billion
366 mm²
Die Size
125 mm²
Board Design
75W
TDP
Unknown
-
Suggested PSU
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.0
OpenCL
2.1
1.2
Vulkan
1.2.170
-
CUDA
-
6.3
Shader Model
6.5
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