NVIDIA GeForce 805A vs NVIDIA GeForce GT 555M

VS

NVIDIA GeForce 805A

NVIDIA GeForce GT 555M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 805A and 2GB VRAM GeForce GT 555M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 805A 's Advantages

Released 2 years and 4 months late

Boost Clock758MHz

48 additional rendering cores

Lower TDP (15W vs 35W)

NVIDIA GeForce GT 555M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.80GB/s vs 16.02GB/s)

Score

Benchmark

FP32 (float)

GeForce 805A

0.291 TFLOPS

GeForce GT 555M +33%

0.389 TFLOPS

GeForce 805A

VS

GeForce GT 555M

Graphics Card

Jul 2014

Release Date

Mar 2012

GeForce 800A

Generation

GeForce 500M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

719 MHz

Base Clock

-

758 MHz

Boost Clock

-

1001 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

2

192

Shading Units

144

16

TMUs

24

8

ROPs

16

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

6.064 GPixel/s

Pixel Rate

2.700 GPixel/s

12.13 GTexel/s

Texture Rate

16.20 GTexel/s

-

291.1 GFLOPS

FP32 (float)

388.8 GFLOPS

12.13 GFLOPS

FP64 (double)

32.40 GFLOPS

Board Design

15W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK208

GPU Name

GF116

-

GPU Variant

N12E-GE2-A1

Kepler 2.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.02 billion

Transistors

1.17 billion

87 mm²

Die Size

238 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.5

CUDA

2.1

5.1

Shader Model

5.1

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