AMD Radeon R9 M275X vs ATI Mobility Radeon HD 4850 Mac Edition

VS

AMD Radeon R9 M275X

ATI Mobility Radeon HD 4850 Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M275X 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 R9 M275X 's Advantages

Released 4 years and 5 months late

Boost Clock925MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (72.00GB/s vs 54.40GB/s)

ATI Mobility Radeon HD 4850 Mac Edition 's Advantages

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M275X +47%

1.184 TFLOPS

Mobility Radeon HD 4850 Mac Edition

0.804 TFLOPS

Radeon R9 M275X

VS

Mobility Radeon HD 4850 Mac Edition

Graphics Card

Jan 2014

Release Date

Aug 2009

Gem System

Generation

M9x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1125 MHz

Memory Clock

850 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

54.40GB/s

Render Config

10

Compute Units

10

-

640

Shading Units

800

40

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

14.80 GPixel/s

Pixel Rate

8.048 GPixel/s

37.00 GTexel/s

Texture Rate

20.12 GTexel/s

-

1184 GFLOPS

FP32 (float)

804.8 GFLOPS

74.00 GFLOPS

FP64 (double)

161.0 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Venus

GPU Name

M98

Venus XTX (216-0846033)

GPU Variant

M98 L2 (216-0732019)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

0.956 billion

123 mm²

Die Size

256 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1 (1.2)

OpenCL

1.1

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

4.1

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