NVIDIA GeForce GT 555M vs ATI Mobility Radeon HD 4870 X2

VS

NVIDIA GeForce GT 555M

ATI Mobility Radeon HD 4870 X2

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 555M and 1024MB VRAM Mobility Radeon HD 4870 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 2 months late

More VRAM (2GB vs 1024GB)

ATI Mobility Radeon HD 4870 X2 's Advantages

Larger VRAM bandwidth (89.60GB/s vs 28.80GB/s)

656 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 555M

0.389 TFLOPS

Mobility Radeon HD 4870 X2 +126%

0.88 TFLOPS

GeForce GT 555M

VS

Mobility Radeon HD 4870 X2

Graphics Card

Mar 2012

Release Date

Jan 2009

GeForce 500M

Generation

M9x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

89.60GB/s

Render Config

-

Compute Units

10

2

SM Count

-

144

Shading Units

800

24

TMUs

40

16

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

2.700 GPixel/s

Pixel Rate

8.800 GPixel/s

16.20 GTexel/s

Texture Rate

22.00 GTexel/s

-

388.8 GFLOPS

FP32 (float)

880.0 GFLOPS

32.40 GFLOPS

FP64 (double)

176.0 GFLOPS

Board Design

35W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

GF116

GPU Name

M98

N12E-GE2-A1

GPU Variant

M98 XT L2 (216-0732023)

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.17 billion

Transistors

0.956 billion

238 mm²

Die Size

256 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.1

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