NVIDIA GeForce GTX 780M vs NVIDIA GeForce 945A

VS

NVIDIA GeForce GTX 780M NVIDIA GeForce 945A

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 780M and 1024MB VRAM GeForce 945A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780M 's Advantages

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (160.0GB/s vs 40.10GB/s)

1152 additional rendering cores

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)

Score

Benchmark

FP32 (float)

GeForce GTX 780M +168%

2.448 TFLOPS

GeForce 945A

0.913 TFLOPS

GeForce GTX 780M

VS

GeForce 945A

Graphics Card

May 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

771 MHz

Base Clock

1006 MHz

797 MHz

Boost Clock

1189 MHz

1250 MHz

Memory Clock

1253 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

40.10GB/s

Render Config

-

SM Count

-

Compute Units

-

1536

Shading Units

384

128

TMUs

24

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

1024 KB

Theoretical Performance

25.50 GPixel/s

Pixel Rate

9.512 GPixel/s

102.0 GTexel/s

Texture Rate

28.54 GTexel/s

-

FP16 (half)

-

2.448 TFLOPS

FP32 (float)

913.2 GFLOPS

102.0 GFLOPS

FP64 (double)

28.54 GFLOPS

Graphics Processor

GK104

GPU Name

GM108

N14E-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

Board Design

122W

TDP

33W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

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

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