AMD Radeon R7 A265 vs ATI Mobility Radeon HD 4850 Mac Edition

VS

AMD Radeon R7 A265

ATI Mobility Radeon HD 4850 Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon R7 A265 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 R7 A265 's Advantages

Released 4 years and 5 months late

Boost Clock825MHz

More VRAM (2GB vs 512GB)

ATI Mobility Radeon HD 4850 Mac Edition 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 28.80GB/s)

416 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 A265

0.633 TFLOPS

Mobility Radeon HD 4850 Mac Edition +27%

0.804 TFLOPS

Radeon R7 A265

VS

Mobility Radeon HD 4850 Mac Edition

Graphics Card

Jan 2014

Release Date

Aug 2009

All-In-One

Generation

M9x

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

725 MHz

Base Clock

-

825 MHz

Boost Clock

-

900 MHz

Memory Clock

850 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

54.40GB/s

Render Config

6

Compute Units

10

-

384

Shading Units

800

24

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

8.048 GPixel/s

19.80 GTexel/s

Texture Rate

20.12 GTexel/s

-

633.6 GFLOPS

FP32 (float)

804.8 GFLOPS

39.60 GFLOPS

FP64 (double)

161.0 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Opal

GPU Name

M98

Opal XT

GPU Variant

M98 L2 (216-0732019)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

0.95 billion

Transistors

0.956 billion

77 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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