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GPU Comparison
AMD Radeon R9 M395X vs AMD Radeon HD 8870M
AMD Radeon R9 M395X vs AMD Radeon HD 8870M
VS
AMD Radeon R9 M395X
AMD Radeon HD 8870M
We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M395X and 2GB VRAM Radeon HD 8870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M395X 's Advantages
Released 2 years and 1 months late
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (160.0GB/s vs 72.00GB/s)
1408 additional rendering cores
AMD Radeon HD 8870M 's Advantages
Boost Clock775MHz
Score
Benchmark
FP32 (float)
Radeon R9 M395X
+198%
2.961 TFLOPS
Radeon HD 8870M
0.992 TFLOPS
Radeon R9 M395X
VS
Radeon HD 8870M
Graphics Card
May 2015
Release Date
Apr 2013
Crystal System
Generation
Solar System
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
725 MHz
-
Boost Clock
775 MHz
1250 MHz
Memory Clock
1125 MHz
Memory
8GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
160.0GB/s
Bandwidth
72.00GB/s
Render Config
-
SM Count
-
32
Compute Units
10
2048
Shading Units
640
128
TMUs
40
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
256 KB
Theoretical Performance
23.14 GPixel/s
Pixel Rate
12.40 GPixel/s
92.54 GTexel/s
Texture Rate
31.00 GTexel/s
2.961 TFLOPS
FP16 (half)
-
2.961 TFLOPS
FP32 (float)
992.0 GFLOPS
185.1 GFLOPS
FP64 (double)
62.00 GFLOPS
Graphics Processor
Amethyst
GPU Name
Venus
Amethyst XT
GPU Variant
Venus XT (216-0846000)
GCN 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
1.5 billion
366 mm²
Die Size
123 mm²
Board Design
75W
TDP
Unknown
-
Suggested PSU
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Features
12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.0
OpenCL
2.1 (1.2)
1.2
Vulkan
1.2.170
-
CUDA
-
6.3
Shader Model
6.5 (5.1)
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