NVIDIA GeForce GTX 775M Mac Edition vs AMD Radeon R5 A255
We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 775M Mac Edition and 1024MB VRAM Radeon R5 A255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 775M Mac Edition 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 64.00GB/s)
960 additional rendering cores
AMD Radeon R5 A255 's Advantages
Boost Clock940MHz
Score
Benchmark
FP32 (float)
GeForce GTX 775M Mac Edition
+197%
2.142 TFLOPS
Radeon R5 A255
0.721 TFLOPS
Graphics Card
Nov 2013
Release Date
Jan 2014
GeForce 700M
Generation
All-In-One
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
925 MHz
-
Boost Clock
940 MHz
1250 MHz
Memory Clock
1000 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
160.0GB/s
Bandwidth
64.00GB/s
Render Config
-
Compute Units
6
-
-
-
1344
Shading Units
384
112
TMUs
24
32
ROPs
8
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
22.32 GPixel/s
Pixel Rate
7.520 GPixel/s
89.26 GTexel/s
Texture Rate
22.56 GTexel/s
-
-
-
2.142 TFLOPS
FP32 (float)
721.9 GFLOPS
89.26 GFLOPS
FP64 (double)
-
Board Design
100W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
-
-
-
Graphics Processor
GK104
GPU Name
Topaz
N13E-GTX-A2
GPU Variant
Topaz PRO
(216-0858030)
Kepler
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
3.54 billion
Transistors
1.55 billion
294 mm²
Die Size
125 mm²
Graphics Features
12 (11_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
3.0
OpenCL
2.1
1.1
Vulkan
1.2.170
3.0
CUDA
-
5.1
Shader Model
6.5
