NVIDIA GeForce GT 420M vs ATI Mobility Radeon HD 4850

VS

NVIDIA GeForce GT 420M

ATI Mobility Radeon HD 4850

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 420M and 1024MB VRAM Mobility Radeon HD 4850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 420M 's Advantages

Released 1 years and 8 months late

ATI Mobility Radeon HD 4850 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (54.40GB/s vs 25.60GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 420M

0.192 TFLOPS

Mobility Radeon HD 4850 +318%

0.804 TFLOPS

GeForce GT 420M

VS

Mobility Radeon HD 4850

Graphics Card

Sep 2010

Release Date

Jan 2009

GeForce 400M

Generation

M9x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

850 MHz

Memory

512MB

Memory Size

1024MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

256bit

25.60GB/s

Bandwidth

54.40GB/s

Render Config

-

Compute Units

10

2

SM Count

-

96

Shading Units

800

16

TMUs

40

4

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

2.000 GPixel/s

Pixel Rate

8.048 GPixel/s

8.000 GTexel/s

Texture Rate

20.12 GTexel/s

-

192.0 GFLOPS

FP32 (float)

804.8 GFLOPS

16.00 GFLOPS

FP64 (double)

161.0 GFLOPS

Board Design

23W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GF108

GPU Name

M98

N11P-GE-A1

GPU Variant

M98 L2 (216-0732019)

Fermi

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.585 billion

Transistors

0.956 billion

116 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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