NVIDIA GeForce 8400M GS vs NVIDIA GeForce 945A

VS

NVIDIA GeForce 8400M GS

NVIDIA GeForce 945A

We compared two Mobile platform GPUs: 256MB VRAM GeForce 8400M GS and 1024MB VRAM GeForce 945A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400M GS 's Advantages

Lower TDP (11W vs 33W)

NVIDIA GeForce 945A 's Advantages

Released 7 years and 10 months late

Boost Clock1189MHz

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (40.10GB/s vs 6.400GB/s)

368 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400M GS

0.026 TFLOPS

GeForce 945A +3411%

0.913 TFLOPS

GeForce 8400M GS

VS

GeForce 945A

Graphics Card

May 2007

Release Date

Mar 2015

GeForce 8M

Generation

GeForce 900A

Mobile

Type

Mobile

MXM-I

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1006 MHz

-

Boost Clock

1189 MHz

400 MHz

Memory Clock

1253 MHz

Memory

256MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

64bit

6.400GB/s

Bandwidth

40.10GB/s

Render Config

-

2

SM Count

-

16

Shading Units

384

8

TMUs

24

4

ROPs

8

-

L1 Cache

64 KB (per SMM)

16 KB

L2 Cache

1024 KB

-

Theoretical Performance

1.600 GPixel/s

Pixel Rate

9.512 GPixel/s

3.200 GTexel/s

Texture Rate

28.54 GTexel/s

-

25.60 GFLOPS

FP32 (float)

913.2 GFLOPS

-

FP64 (double)

28.54 GFLOPS

Board Design

11W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

G86

GPU Name

GM108

NB8M-GS

GPU Variant

-

Tesla

Architecture

Maxwell

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.21 billion

Transistors

Unknown

127 mm²

Die Size

Unknown

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.3

1.1

CUDA

5.0

4.0

Shader Model

5.1

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