NVIDIA GeForce GT 420M vs AMD Radeon HD 6550A

VS

NVIDIA GeForce GT 420M

AMD Radeon HD 6550A

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 420M and 2GB VRAM Radeon HD 6550A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 420M 's Advantages

Lower TDP (23W vs 35W)

AMD Radeon HD 6550A 's Advantages

More VRAM (2GB vs 512GB)

384 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 420M

0.192 TFLOPS

Radeon HD 6550A +175%

0.528 TFLOPS

GeForce GT 420M

VS

Radeon HD 6550A

Graphics Card

Sep 2010

Release Date

Feb 2011

GeForce 400M

Generation

All-In-One

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

800 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

2GB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

6

2

SM Count

-

96

Shading Units

480

16

TMUs

24

4

ROPs

8

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

2.000 GPixel/s

Pixel Rate

4.400 GPixel/s

8.000 GTexel/s

Texture Rate

13.20 GTexel/s

-

192.0 GFLOPS

FP32 (float)

528.0 GFLOPS

16.00 GFLOPS

FP64 (double)

-

Board Design

23W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF108

GPU Name

Pinewood

N11P-GE-A1

GPU Variant

Pinewood PRO

Fermi

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.585 billion

Transistors

0.627 billion

116 mm²

Die Size

104 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

5.0

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