NVIDIA GeForce GTX 850M vs NVIDIA GeForce 940A

VS

NVIDIA GeForce GTX 850M

NVIDIA GeForce 940A

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850M 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 850M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (32.03GB/s vs 16.02GB/s)

256 additional rendering cores

NVIDIA GeForce 940A 's Advantages

Released 1 years late

Boost Clock1124MHz

Lower TDP (33W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GTX 850M +33%

1.155 TFLOPS

GeForce 940A

0.863 TFLOPS

GeForce GTX 850M

VS

GeForce 940A

Graphics Card

Mar 2014

Release Date

Mar 2015

GeForce 800M

Generation

GeForce 900A

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

1001 MHz

Memory Clock

1001 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

32.03GB/s

Bandwidth

16.02GB/s

Render Config

-

640

Shading Units

384

40

TMUs

16

ROPs

8

-

64 KB (per SMM)

L1 Cache

64 KB (per SMM)

2 MB

L2 Cache

1024 KB

-

Theoretical Performance

14.43 GPixel/s

Pixel Rate

8.992 GPixel/s

36.08 GTexel/s

Texture Rate

17.98 GTexel/s

-

1155 GFLOPS

FP32 (float)

863.2 GFLOPS

36.08 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

45W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM107

GPU Name

GM108

N15P-GT-A1

GPU Variant

-

Maxwell

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

Unknown

148 mm²

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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