Home GPU Comparison AMD Radeon R9 M395X Mac Edition vs NVIDIA GeForce 805A

AMD Radeon R9 M395X Mac Edition vs NVIDIA GeForce 805A

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 1024MB VRAM GeForce 805A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395X Mac Edition 's Advantages
Released 10 months late
More VRAM (4GB vs 1GB)
Larger VRAM bandwidth (174.7GB/s vs 16.02GB/s)
1856 additional rendering cores
NVIDIA GeForce 805A 's Advantages
Boost Clock758MHz
Lower TDP (15W vs 250W)

Score

Benchmark

FP32 (float)
Radeon R9 M395X Mac Edition +1179%
3.723 TFLOPS
GeForce 805A
0.291 TFLOPS
VS

Graphics Card

May 2015
Release Date
Jul 2014
Crystal System
Generation
GeForce 800A
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x8

Clock Speeds

-
Base Clock
719 MHz
-
Boost Clock
758 MHz
1365 MHz
Memory Clock
1001 MHz

Memory

4GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
174.7GB/s
Bandwidth
16.02GB/s

Render Config

-
SM Count
-
32
Compute Units
-
2048
Shading Units
192
128
TMUs
16
32
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
512 KB

Theoretical Performance

29.09 GPixel/s
Pixel Rate
6.064 GPixel/s
116.4 GTexel/s
Texture Rate
12.13 GTexel/s
3.723 TFLOPS
FP16 (half)
-
3.723 TFLOPS
FP32 (float)
291.1 GFLOPS
232.7 GFLOPS
FP64 (double)
12.13 GFLOPS

Graphics Processor

Amethyst
GPU Name
GK208
Amethyst XT
GPU Variant
-
GCN 3.0
Architecture
Kepler 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
1.02 billion
366 mm²
Die Size
87 mm²

Board Design

250W
TDP
15W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-

Graphics Features

12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.0
OpenCL
3.0
1.2
Vulkan
1.1
-
CUDA
3.5
6.3
Shader Model
5.1

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