ATI Mobility Radeon HD 3850 X2 vs AMD Radeon R7 A265

VS

ATI Mobility Radeon HD 3850 X2

AMD Radeon R7 A265

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3850 X2 and 2GB VRAM Radeon R7 A265 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3850 X2 's Advantages

Larger VRAM bandwidth (48.00GB/s vs 28.80GB/s)

AMD Radeon R7 A265 's Advantages

Released 5 years and 7 months late

Boost Clock825MHz

More VRAM (2GB vs 512GB)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3850 X2

0.371 TFLOPS

Radeon R7 A265 +70%

0.633 TFLOPS

Mobility Radeon HD 3850 X2

VS

Radeon R7 A265

Graphics Card

Jun 2008

Release Date

Jan 2014

M8x

Generation

All-In-One

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

725 MHz

-

Boost Clock

825 MHz

750 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

DDR3

256bit

Memory Bus

128bit

48.00GB/s

Bandwidth

28.80GB/s

Render Config

4

Compute Units

6

-

320

Shading Units

384

16

TMUs

24

16

ROPs

8

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

9.280 GPixel/s

Pixel Rate

6.600 GPixel/s

9.280 GTexel/s

Texture Rate

19.80 GTexel/s

-

371.2 GFLOPS

FP32 (float)

633.6 GFLOPS

74.24 GFLOPS

FP64 (double)

39.60 GFLOPS

Board Design

70W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

M88

GPU Name

Opal

-

GPU Variant

Opal XT

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

0.95 billion

192 mm²

Die Size

77 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

N/A

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

4.1

Shader Model

6.5 (5.1)

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