Home GPU Comparison AMD Radeon R9 M395X vs NVIDIA GeForce GTX 675M

AMD Radeon R9 M395X vs NVIDIA GeForce GTX 675M

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M395X and 2GB VRAM GeForce GTX 675M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395X 's Advantages
Released 3 years and 2 months late
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (160.0GB/s vs 96.00GB/s)
1664 additional rendering cores
Lower TDP (75W vs 100W)

Score

Benchmark

FP32 (float)
Radeon R9 M395X +211%
2.961 TFLOPS
GeForce GTX 675M
0.952 TFLOPS
VS

Graphics Card

May 2015
Release Date
Mar 2012
Crystal System
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
MXM-B (3.0)

Clock Speeds

-
-
-
-
-
-
1250 MHz
Memory Clock
750 MHz

Memory

8GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
160.0GB/s
Bandwidth
96.00GB/s

Render Config

32
Compute Units
-
-
SM Count
8
2048
Shading Units
384
128
TMUs
64
32
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

23.14 GPixel/s
Pixel Rate
9.920 GPixel/s
92.54 GTexel/s
Texture Rate
39.68 GTexel/s
2.961 TFLOPS
FP16 (half)
-
2.961 TFLOPS
FP32 (float)
952.3 GFLOPS
185.1 GFLOPS
FP64 (double)
79.36 GFLOPS

Board Design

75W
TDP
100W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-

Graphics Processor

Amethyst
GPU Name
GF114
Amethyst XT
GPU Variant
N13E-GS1-A1
GCN 3.0
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
5 billion
Transistors
1.95 billion
366 mm²
Die Size
332 mm²

Graphics Features

12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.0
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
2.1
6.3
Shader Model
5.1

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