Home GPU Comparison NVIDIA GeForce GT 745A vs NVIDIA GeForce GTX 780M

NVIDIA GeForce GT 745A vs NVIDIA GeForce GTX 780M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 745A 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 GT 745A 's Advantages
Boost Clock has increased by 15% (915MHz vs 797MHz)
Lower TDP (33W vs 122W)
NVIDIA GeForce GTX 780M 's Advantages
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (160.0GB/s vs 28.80GB/s)
1152 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce GT 745A
0.703 TFLOPS
GeForce GTX 780M +248%
2.448 TFLOPS
VS

Graphics Card

Aug 2013
Release Date
May 2013
GeForce 700A
Generation
GeForce 700M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
MXM-B (3.0)

Clock Speeds

837 MHz
Base Clock
771 MHz
915 MHz
Boost Clock
797 MHz
900 MHz
Memory Clock
1250 MHz

Memory

2GB
Memory Size
4GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
28.80GB/s
Bandwidth
160.0GB/s

Render Config

-
-
-
-
-
-
384
Shading Units
1536
32
TMUs
128
16
ROPs
32
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per SMX)
256 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

7.320 GPixel/s
Pixel Rate
25.50 GPixel/s
29.28 GTexel/s
Texture Rate
102.0 GTexel/s
-
-
-
702.7 GFLOPS
FP32 (float)
2.448 TFLOPS
29.28 GFLOPS
FP64 (double)
102.0 GFLOPS

Board Design

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

Graphics Processor

GK107
GPU Name
GK104
N14P-LP
GPU Variant
N14E-GTX-A2
Kepler
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
3.54 billion
118 mm²
Die Size
294 mm²

Graphics Features

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

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