NVIDIA GeForce GTX 850A vs NVIDIA GeForce GTX 870M

VS

NVIDIA GeForce GTX 850A NVIDIA GeForce GTX 870M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850A and 3GB VRAM GeForce GTX 870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850A 's Advantages

Lower TDP (45W vs 100W)

NVIDIA GeForce GTX 870M 's Advantages

Boost Clock has increased by 3% (967MHz vs 936MHz)

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (120.0GB/s vs 28.80GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 850A

1.198 TFLOPS

GeForce GTX 870M +116%

2.599 TFLOPS

GeForce GTX 850A

VS

GeForce GTX 870M

Graphics Card

Mar 2014

Release Date

Mar 2014

GeForce 800A

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

902 MHz

Base Clock

941 MHz

936 MHz

Boost Clock

967 MHz

900 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

3GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

192bit

28.80GB/s

Bandwidth

120.0GB/s

Render Config

-

SM Count

-

Compute Units

-

640

Shading Units

1344

40

TMUs

112

16

ROPs

24

-

Tensor Cores

-

RT Cores

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

384 KB

Theoretical Performance

14.98 GPixel/s

Pixel Rate

27.08 GPixel/s

37.44 GTexel/s

Texture Rate

108.3 GTexel/s

-

FP16 (half)

-

1198 GFLOPS

FP32 (float)

2.599 TFLOPS

37.44 GFLOPS

FP64 (double)

108.3 GFLOPS

Graphics Processor

GM107

GPU Name

GK104

N15P-GT-A1

GPU Variant

N15E-GT-A2

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

3.54 billion

148 mm²

Die Size

294 mm²

Board Design

45W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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