NVIDIA GeForce GT 555M vs ATI Mobility Radeon HD 3870 X2

VS

NVIDIA GeForce GT 555M

ATI Mobility Radeon HD 3870 X2

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 555M and 512MB VRAM Mobility Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 555M 's Advantages

Released 3 years and 6 months late

More VRAM (2GB vs 512GB)

Lower TDP (35W vs 110W)

ATI Mobility Radeon HD 3870 X2 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 28.80GB/s)

176 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 555M

0.389 TFLOPS

Mobility Radeon HD 3870 X2 +8%

0.422 TFLOPS

GeForce GT 555M

VS

Mobility Radeon HD 3870 X2

Graphics Card

Mar 2012

Release Date

Sep 2008

GeForce 500M

Generation

M8x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

850 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

54.40GB/s

Render Config

-

Compute Units

4

2

SM Count

-

144

Shading Units

320

24

TMUs

16

ROPs

16

-

64 KB (per SM)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

2.700 GPixel/s

Pixel Rate

10.56 GPixel/s

16.20 GTexel/s

Texture Rate

10.56 GTexel/s

-

388.8 GFLOPS

FP32 (float)

422.4 GFLOPS

32.40 GFLOPS

FP64 (double)

84.48 GFLOPS

Board Design

35W

TDP

110W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF116

GPU Name

M88

N12E-GE2-A1

GPU Variant

-

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.17 billion

Transistors

0.666 billion

238 mm²

Die Size

192 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.1

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