NVIDIA GeForce 620M vs ATI Mobility Radeon HD 4850 Mac Edition

VS

NVIDIA GeForce 620M

ATI Mobility Radeon HD 4850 Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 620M and 512MB VRAM Mobility Radeon HD 4850 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 620M 's Advantages

Released 2 years and 7 months late

More VRAM (1024GB vs 512GB)

ATI Mobility Radeon HD 4850 Mac Edition 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 14.40GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 620M

0.24 TFLOPS

Mobility Radeon HD 4850 Mac Edition +235%

0.804 TFLOPS

GeForce 620M

VS

Mobility Radeon HD 4850 Mac Edition

Graphics Card

Mar 2012

Release Date

Aug 2009

GeForce 600M

Generation

M9x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

900 MHz

Memory Clock

850 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

54.40GB/s

Render Config

-

Compute Units

10

2

SM Count

-

96

Shading Units

800

16

TMUs

40

8

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

8.048 GPixel/s

10.00 GTexel/s

Texture Rate

20.12 GTexel/s

-

240.0 GFLOPS

FP32 (float)

804.8 GFLOPS

20.00 GFLOPS

FP64 (double)

161.0 GFLOPS

Board Design

15W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

GF117

GPU Name

M98

N13P-GLP

GPU Variant

M98 L2 (216-0732019)

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 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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