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GPU Comparison
AMD Radeon R9 M270X vs AMD Radeon R9 M390X
AMD Radeon R9 M270X vs AMD Radeon R9 M390X
VS
AMD Radeon R9 M270X
AMD Radeon R9 M390X
We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M270X and 4GB VRAM Radeon R9 M390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M270X 's Advantages
Boost Clock1000MHz
AMD Radeon R9 M390X 's Advantages
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (160.0GB/s vs 88.00GB/s)
1280 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R9 M270X
1.536 TFLOPS
Radeon R9 M390X
+92%
2.961 TFLOPS
Radeon R9 M270X
VS
Radeon R9 M390X
Graphics Card
Feb 2015
Release Date
May 2015
Gem System
Generation
Crystal System
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
900 MHz
Base Clock
-
1000 MHz
Boost Clock
-
1375 MHz
Memory Clock
1250 MHz
Memory
2GB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
88.00GB/s
Bandwidth
160.0GB/s
Render Config
-
SM Count
-
12
Compute Units
32
768
Shading Units
2048
48
TMUs
128
16
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
Theoretical Performance
16.00 GPixel/s
Pixel Rate
23.14 GPixel/s
48.00 GTexel/s
Texture Rate
92.54 GTexel/s
-
FP16 (half)
2.961 TFLOPS
1.536 TFLOPS
FP32 (float)
2.961 TFLOPS
96.00 GFLOPS
FP64 (double)
185.1 GFLOPS
Graphics Processor
Saturn
GPU Name
Amethyst
Saturn PRO (216-0843044)
GPU Variant
Amethyst XT
GCN 2.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.08 billion
Transistors
5 billion
160 mm²
Die Size
366 mm²
Board Design
Unknown
TDP
75W
-
Suggested PSU
-
Portable Device Dependent
Outputs
No outputs
-
Power Connectors
None
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.0
1.2.170
Vulkan
1.2
-
CUDA
-
6.5
Shader Model
6.3
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