NVIDIA GeForce 800A vs NVIDIA GeForce 8400M GT

VS

NVIDIA GeForce 800A

NVIDIA GeForce 8400M GT

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 800A and 512MB VRAM GeForce 8400M GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 800A 's Advantages

Released 6 years and 10 months late

More VRAM (1024GB vs 512GB)

32 additional rendering cores

NVIDIA GeForce 8400M GT 's Advantages

Larger VRAM bandwidth (19.20GB/s vs 14.40GB/s)

Lower TDP (14W vs 15W)

Score

Benchmark

FP32 (float)

GeForce 800A +213%

0.091 TFLOPS

GeForce 8400M GT

0.029 TFLOPS

GeForce 800A

VS

GeForce 8400M GT

Graphics Card

Mar 2014

Release Date

May 2007

GeForce 800A

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

900 MHz

Memory Clock

600 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

19.20GB/s

Render Config

-

1

SM Count

2

48

Shading Units

16

8

TMUs

8

4

ROPs

4

-

64 KB (per SM)

L1 Cache

-

128 KB

L2 Cache

32 KB

-

Theoretical Performance

950.0 MPixel/s

Pixel Rate

1.800 GPixel/s

3.800 GTexel/s

Texture Rate

3.600 GTexel/s

-

91.20 GFLOPS

FP32 (float)

28.80 GFLOPS

7.600 GFLOPS

FP64 (double)

-

Board Design

15W

TDP

14W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF119

GPU Name

G86

-

GPU Variant

G86-603-A2

Fermi 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

0.292 billion

Transistors

0.21 billion

79 mm²

Die Size

127 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

1.1

5.1

Shader Model

4.0

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