NVIDIA GeForce GTX 780M vs NVIDIA GeForce 940A

VS

NVIDIA GeForce GTX 780M

NVIDIA GeForce 940A

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 780M and 1024MB VRAM GeForce 940A 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 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 16.02GB/s)

1152 additional rendering cores

NVIDIA GeForce 940A 's Advantages

Released 1 years and 10 months late

Boost Clock has increased by 41% (1124MHz vs 797MHz)

Lower TDP (33W vs 122W)

Score

Benchmark

FP32 (float)

GeForce GTX 780M +183%

2.448 TFLOPS

GeForce 940A

0.863 TFLOPS

GeForce GTX 780M

VS

GeForce 940A

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

1029 MHz

797 MHz

Boost Clock

1124 MHz

1250 MHz

Memory Clock

1001 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

16.02GB/s

Render Config

-

1536

Shading Units

384

128

TMUs

16

32

ROPs

8

-

16 KB (per SMX)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

25.50 GPixel/s

Pixel Rate

8.992 GPixel/s

102.0 GTexel/s

Texture Rate

17.98 GTexel/s

-

2.448 TFLOPS

FP32 (float)

863.2 GFLOPS

102.0 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

122W

TDP

33W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

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

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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