NVIDIA GeForce 940A vs NVIDIA GeForce 840A

VS

NVIDIA GeForce 940A

NVIDIA GeForce 840A

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 940A and 2GB VRAM GeForce 840A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 940A 's Advantages

Released 1 years late

NVIDIA GeForce 840A 's Advantages

More VRAM (2GB vs 1024GB)

Score

Benchmark

FP32 (float)

GeForce 940A

0.863 TFLOPS

GeForce 840A

0.863 TFLOPS

GeForce 940A

VS

GeForce 840A

Graphics Card

Mar 2015

Release Date

Mar 2014

GeForce 900A

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1029 MHz

Base Clock

1029 MHz

1124 MHz

Boost Clock

1124 MHz

1001 MHz

Memory Clock

1001 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

64bit

16.02GB/s

Bandwidth

16.02GB/s

Render Config

-

384

Shading Units

384

16

TMUs

16

8

ROPs

8

-

64 KB (per SMM)

L1 Cache

64 KB (per SMM)

1024 KB

L2 Cache

1024 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

8.992 GPixel/s

17.98 GTexel/s

Texture Rate

17.98 GTexel/s

-

863.2 GFLOPS

FP32 (float)

863.2 GFLOPS

26.98 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

33W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

GM108

-

Maxwell

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

Unknown

Die Size

Unknown

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

5.0

CUDA

5.0

5.1

Shader Model

5.1

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