NVIDIA GeForce GT 420M vs ATI Mobility Radeon HD 4550

VS

NVIDIA GeForce GT 420M

ATI Mobility Radeon HD 4550

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 420M and 512MB VRAM Mobility Radeon HD 4550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 420M 's Advantages

Released 8 months late

Larger VRAM bandwidth (25.60GB/s vs 11.20GB/s)

16 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 420M +118%

0.192 TFLOPS

Mobility Radeon HD 4550

0.088 TFLOPS

GeForce GT 420M

VS

Mobility Radeon HD 4550

Graphics Card

Sep 2010

Release Date

Jan 2010

GeForce 400M

Generation

M9x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-II

Clock Speeds

-

800 MHz

Memory Clock

700 MHz

Memory

512MB

Memory Size

512MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

64bit

25.60GB/s

Bandwidth

11.20GB/s

Render Config

-

Compute Units

1

2

SM Count

-

96

Shading Units

80

16

TMUs

8

4

ROPs

4

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

64 KB

-

Theoretical Performance

2.000 GPixel/s

Pixel Rate

2.200 GPixel/s

8.000 GTexel/s

Texture Rate

4.400 GTexel/s

-

192.0 GFLOPS

FP32 (float)

88.00 GFLOPS

16.00 GFLOPS

FP64 (double)

-

Board Design

23W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

GF108

GPU Name

M93

N11P-GE-A1

GPU Variant

-

Fermi

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.585 billion

Transistors

0.242 billion

116 mm²

Die Size

73 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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