AMD Radeon HD 7690M XT Rebrand vs ATI Mobility Radeon HD 4850 Mac Edition

VS

AMD Radeon HD 7690M XT Rebrand

ATI Mobility Radeon HD 4850 Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7690M XT Rebrand 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

AMD Radeon HD 7690M XT Rebrand 's Advantages

Released 2 years and 5 months late

More VRAM (1024GB vs 512GB)

ATI Mobility Radeon HD 4850 Mac Edition 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 51.20GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7690M XT Rebrand

0.696 TFLOPS

Mobility Radeon HD 4850 Mac Edition +15%

0.804 TFLOPS

Radeon HD 7690M XT Rebrand

VS

Mobility Radeon HD 4850 Mac Edition

Graphics Card

Jan 2012

Release Date

Aug 2009

London

Generation

M9x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

800 MHz

Memory Clock

850 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

51.20GB/s

Bandwidth

54.40GB/s

Render Config

6

Compute Units

10

-

480

Shading Units

800

24

TMUs

40

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

5.800 GPixel/s

Pixel Rate

8.048 GPixel/s

17.40 GTexel/s

Texture Rate

20.12 GTexel/s

-

696.0 GFLOPS

FP32 (float)

804.8 GFLOPS

-

FP64 (double)

161.0 GFLOPS

Board Design

25W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Whistler

GPU Name

M98

Whistler XTX

GPU Variant

M98 L2 (216-0732019)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.716 billion

Transistors

0.956 billion

104 mm²

Die Size

256 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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