Home GPU Comparison NVIDIA GeForce 945A vs NVIDIA GeForce GTX 780M

NVIDIA GeForce 945A vs NVIDIA GeForce GTX 780M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 945A and 4GB VRAM GeForce GTX 780M 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 10 months late
Boost Clock has increased by 49% (1189MHz vs 797MHz)
Lower TDP (33W vs 122W)
NVIDIA GeForce GTX 780M 's Advantages
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 40.10GB/s)
1152 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce 945A
0.913 TFLOPS
GeForce GTX 780M +168%
2.448 TFLOPS
VS

Graphics Card

Mar 2015
Release Date
May 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
771 MHz
1189 MHz
Boost Clock
797 MHz
1253 MHz
Memory Clock
1250 MHz

Memory

1024MB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
256bit
40.10GB/s
Bandwidth
160.0GB/s

Render Config

-
-
-
-
-
-
384
Shading Units
1536
24
TMUs
128
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
25.50 GPixel/s
28.54 GTexel/s
Texture Rate
102.0 GTexel/s
-
-
-
913.2 GFLOPS
FP32 (float)
2.448 TFLOPS
28.54 GFLOPS
FP64 (double)
102.0 GFLOPS

Board Design

33W
TDP
122W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None

Graphics Processor

GM108
GPU Name
GK104
-
GPU Variant
N14E-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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