AMD Radeon R7 M265 vs ATI Mobility Radeon HD 3870

VS

AMD Radeon R7 M265

ATI Mobility Radeon HD 3870

We compared two Mobile platform GPUs: 2GB VRAM Radeon R7 M265 and 512MB VRAM Mobility Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 M265 's Advantages

Released 5 years and 7 months late

Boost Clock825MHz

More VRAM (2GB vs 512GB)

64 additional rendering cores

ATI Mobility Radeon HD 3870 's Advantages

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

Score

Benchmark

FP32 (float)

Radeon R7 M265 +50%

0.633 TFLOPS

Mobility Radeon HD 3870

0.422 TFLOPS

Radeon R7 M265

VS

Mobility Radeon HD 3870

Graphics Card

Jan 2014

Release Date

Jun 2008

Gem System

Generation

M8x

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

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

4

-

384

Shading Units

320

24

TMUs

16

8

ROPs

16

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

10.56 GPixel/s

19.80 GTexel/s

Texture Rate

10.56 GTexel/s

-

633.6 GFLOPS

FP32 (float)

422.4 GFLOPS

-

FP64 (double)

84.48 GFLOPS

Board Design

Unknown

TDP

55W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Opal

GPU Name

M88

Opal XT

GPU Variant

-

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

0.95 billion

Transistors

0.666 billion

77 mm²

Die Size

192 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1 (1.2)

OpenCL

N/A

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

4.1

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