NVIDIA GeForce 840A vs NVIDIA GeForce GTX 950M

VS

NVIDIA GeForce 840A

NVIDIA GeForce GTX 950M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 4GB VRAM GeForce GTX 950M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Lower TDP (33W vs 75W)

NVIDIA GeForce GTX 950M 's Advantages

Released 1 years late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (28.80GB/s vs 16.02GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840A

0.863 TFLOPS

GeForce GTX 950M +66%

1.439 TFLOPS

GeForce 840A

VS

GeForce GTX 950M

Graphics Card

Mar 2014

Release Date

Mar 2015

GeForce 800A

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1029 MHz

Base Clock

993 MHz

1124 MHz

Boost Clock

1124 MHz

1001 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

28.80GB/s

Render Config

-

384

Shading Units

640

16

TMUs

40

8

ROPs

16

-

64 KB (per SMM)

L1 Cache

64 KB (per SMM)

1024 KB

L2 Cache

2 MB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

17.98 GPixel/s

17.98 GTexel/s

Texture Rate

44.96 GTexel/s

-

863.2 GFLOPS

FP32 (float)

1439 GFLOPS

26.98 GFLOPS

FP64 (double)

44.96 GFLOPS

Board Design

33W

TDP

75W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

GM107

-

GPU Variant

N16P-GT

Maxwell

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

1.87 billion

Unknown

Die Size

148 mm²

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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