GeForce GTX 775M Mac Edition vs GeForce 945A
We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 775M Mac Edition and 1024MB VRAM GeForce 945A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 775M Mac Edition Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 40.10GB/s)
960 additional rendering cores
GeForce 945A Advantages
Released 1 years and 4 months late
Boost Clock1189MHz
Lower TDP (33W vs 100W)
Score
Benchmark
FP32 (float)
GeForce GTX 775M Mac Edition
+134%
2142
GeForce 945A
913
Graphics Card
Nov 2013
Release Date
Mar 2015
GeForce 700M
Generation
GeForce 900A
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1006 MHz
-
Boost Clock
1189 MHz
1250 MHz
Memory Clock
1253 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
64bit
160.0GB/s
Bandwidth
40.10GB/s
Render Config
1344
Shading Units
384
112
TMUs
24
32
ROPs
8
16 KB (per SMX)
L1 Cache
64 KB (per SMM)
512 KB
L2 Cache
1024 KB
Theoretical Performance
22.32 GPixel/s
Pixel Rate
9.512 GPixel/s
89.26 GTexel/s
Texture Rate
28.54 GTexel/s
2.142 TFLOPS
FP32 (float)
913.2 GFLOPS
89.26 GFLOPS
FP64 (double)
28.54 GFLOPS
Board Design
100W
TDP
33W
No outputs
Outputs
No outputs
Graphics Processor
GK104
GPU Name
GM108
N13E-GTX-A2
GPU Variant
-
Kepler
Architecture
Maxwell
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
3.54 billion
Transistors
Unknown
294 mm²
Die Size
Unknown
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.0
CUDA
5.0
5.1
Shader Model
5.1
