NVIDIA GeForce GTX 850M vs NVIDIA GeForce 8400M GS

VS

NVIDIA GeForce GTX 850M

NVIDIA GeForce 8400M GS

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850M and 256MB VRAM GeForce 8400M GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850M 's Advantages

Released 6 years and 10 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (32.03GB/s vs 6.400GB/s)

624 additional rendering cores

NVIDIA GeForce 8400M GS 's Advantages

Lower TDP (11W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GTX 850M +4342%

1.155 TFLOPS

GeForce 8400M GS

0.026 TFLOPS

GeForce GTX 850M

VS

GeForce 8400M GS

Graphics Card

Mar 2014

Release Date

May 2007

GeForce 800M

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-I

Clock Speeds

-

1001 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

DDR3

Memory Type

DDR2

128bit

Memory Bus

64bit

32.03GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

2

640

Shading Units

16

40

TMUs

8

16

ROPs

4

-

64 KB (per SMM)

L1 Cache

-

2 MB

L2 Cache

16 KB

-

Theoretical Performance

14.43 GPixel/s

Pixel Rate

1.600 GPixel/s

36.08 GTexel/s

Texture Rate

3.200 GTexel/s

-

1155 GFLOPS

FP32 (float)

25.60 GFLOPS

36.08 GFLOPS

FP64 (double)

-

Board Design

45W

TDP

11W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM107

GPU Name

G86

N15P-GT-A1

GPU Variant

NB8M-GS

Maxwell

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

1.87 billion

Transistors

0.21 billion

148 mm²

Die Size

127 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

1.3

Vulkan

N/A

5.0

CUDA

1.1

5.1

Shader Model

4.0

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