AMD Radeon HD 8970M vs ATI Mobility Radeon HD 4850

VS

AMD Radeon HD 8970M

ATI Mobility Radeon HD 4850

We compared two Mobile platform GPUs: 4GB VRAM Radeon HD 8970M and 1024MB VRAM Mobility Radeon HD 4850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970M 's Advantages

Released 4 years and 4 months late

Boost Clock900MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 54.40GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8970M +186%

2.304 TFLOPS

Mobility Radeon HD 4850

0.804 TFLOPS

Radeon HD 8970M

VS

Mobility Radeon HD 4850

Graphics Card

May 2013

Release Date

Jan 2009

Solar System

Generation

M9x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

850 MHz

Base Clock

-

900 MHz

Boost Clock

-

1200 MHz

Memory Clock

850 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

54.40GB/s

Render Config

20

Compute Units

10

-

1280

Shading Units

800

80

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

8.048 GPixel/s

72.00 GTexel/s

Texture Rate

20.12 GTexel/s

-

2.304 TFLOPS

FP32 (float)

804.8 GFLOPS

144.0 GFLOPS

FP64 (double)

161.0 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Neptune

GPU Name

M98

Neptune XT (216-0847000)

GPU Variant

M98 L2 (216-0732019)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.956 billion

212 mm²

Die Size

256 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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