NVIDIA GeForce 945A vs NVIDIA GeForce 8400M G

VS

NVIDIA GeForce 945A

NVIDIA GeForce 8400M G

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

Main Differences

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)

376 additional rendering cores

NVIDIA GeForce 8400M G 's Advantages

Lower TDP (10W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 945A +6923%

0.913 TFLOPS

GeForce 8400M G

0.013 TFLOPS

GeForce 945A

VS

GeForce 8400M G

Graphics Card

Mar 2015

Release Date

May 2007

GeForce 900A

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 1.0 x16

Clock Speeds

1006 MHz

Base Clock

-

1189 MHz

Boost Clock

-

1253 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

64bit

40.10GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

1

384

Shading Units

8

24

TMUs

8

ROPs

4

-

64 KB (per SMM)

L1 Cache

-

1024 KB

L2 Cache

16 KB

-

Theoretical Performance

9.512 GPixel/s

Pixel Rate

1.600 GPixel/s

28.54 GTexel/s

Texture Rate

3.200 GTexel/s

-

913.2 GFLOPS

FP32 (float)

12.80 GFLOPS

28.54 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

10W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GM108

GPU Name

G86

-

GPU Variant

NB8M-SE

Maxwell

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

Unknown

Transistors

0.21 billion

Unknown

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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