Home GPU Comparison NVIDIA GeForce 945A vs NVIDIA GeForce GTX 775M Mac Edition

NVIDIA GeForce 945A vs NVIDIA GeForce GTX 775M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 945A and 2GB VRAM GeForce GTX 775M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 945A 's Advantages
Released 1 years and 4 months late
Boost Clock1189MHz
Lower TDP (33W vs 100W)
NVIDIA GeForce GTX 775M Mac Edition 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 40.10GB/s)
960 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce 945A
0.913 TFLOPS
GeForce GTX 775M Mac Edition +134%
2.142 TFLOPS
VS

Graphics Card

Mar 2015
Release Date
Nov 2013
GeForce 900A
Generation
GeForce 700M
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
MXM-B (3.0)

Clock Speeds

1006 MHz
Base Clock
-
1189 MHz
Boost Clock
-
1253 MHz
Memory Clock
1250 MHz

Memory

1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
256bit
40.10GB/s
Bandwidth
160.0GB/s

Render Config

-
-
-
-
-
-
384
Shading Units
1344
24
TMUs
112
8
ROPs
32
-
-
-
-
-
-
64 KB (per SMM)
L1 Cache
16 KB (per SMX)
1024 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

9.512 GPixel/s
Pixel Rate
22.32 GPixel/s
28.54 GTexel/s
Texture Rate
89.26 GTexel/s
-
-
-
913.2 GFLOPS
FP32 (float)
2.142 TFLOPS
28.54 GFLOPS
FP64 (double)
89.26 GFLOPS

Board Design

33W
TDP
100W
-
-
-
No outputs
Outputs
No outputs
-
-
-

Graphics Processor

GM108
GPU Name
GK104
-
GPU Variant
N13E-GTX-A2
Maxwell
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
Unknown
Transistors
3.54 billion
Unknown
Die Size
294 mm²

Graphics Features

12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
5.0
CUDA
3.0
5.1
Shader Model
5.1

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