AMD Radeon R9 M295X Mac Edition vs NVIDIA GeForce GT 555M
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M295X Mac Edition and 2GB VRAM GeForce GT 555M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M295X Mac Edition 's Advantages
Released 2 years and 8 months late
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (174.3GB/s vs 28.80GB/s)
1904 additional rendering cores
NVIDIA GeForce GT 555M 's Advantages
Lower TDP (35W vs 250W)
Score
Benchmark
FP32 (float)
Radeon R9 M295X Mac Edition
+795%
3.482 TFLOPS
GeForce GT 555M
0.389 TFLOPS
Graphics Card
Nov 2014
Release Date
Mar 2012
Crystal System
Generation
GeForce 500M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1362 MHz
Memory Clock
900 MHz
Memory
4GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
174.3GB/s
Bandwidth
28.80GB/s
Render Config
32
Compute Units
-
-
SM Count
2
2048
Shading Units
144
128
TMUs
24
32
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
27.20 GPixel/s
Pixel Rate
2.700 GPixel/s
108.8 GTexel/s
Texture Rate
16.20 GTexel/s
3.482 TFLOPS
FP16 (half)
-
3.482 TFLOPS
FP32 (float)
388.8 GFLOPS
217.6 GFLOPS
FP64 (double)
32.40 GFLOPS
Board Design
250W
TDP
35W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
Amethyst
GPU Name
GF116
Amethyst XT
GPU Variant
N12E-GE2-A1
GCN 3.0
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
5 billion
Transistors
1.17 billion
366 mm²
Die Size
238 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
