ATI Mobility Radeon X2500 vs AMD Radeon R9 M395X Mac Edition

VS

ATI Mobility Radeon X2500

AMD Radeon R9 M395X Mac Edition

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon X2500 and 4GB VRAM Radeon R9 M395X Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395X Mac Edition 's Advantages

Released 7 years and 11 months late

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (174.7GB/s vs 12.80GB/s)

2048 additional rendering cores

Score

Mobility Radeon X2500

VS

Radeon R9 M395X Mac Edition

Graphics Card

Jun 2007

Release Date

May 2015

M6x

Generation

Crystal System

Mobile

Type

Mobile

PCIe 1.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

400 MHz

Memory Clock

1365 MHz

Memory

256MB

Memory Size

4GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

256bit

12.80GB/s

Bandwidth

174.7GB/s

Render Config

-

Compute Units

32

-

Shading Units

2048

4

TMUs

128

4

ROPs

32

-

L1 Cache

16 KB (per CU)

-

L2 Cache

512 KB

-

Theoretical Performance

1.840 GPixel/s

Pixel Rate

29.09 GPixel/s

1.840 GTexel/s

Texture Rate

116.4 GTexel/s

-

FP16 (half)

3.723 TFLOPS

-

FP32 (float)

3.723 TFLOPS

-

FP64 (double)

232.7 GFLOPS

Board Design

Unknown

TDP

250W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

M66

GPU Name

Amethyst

-

GPU Variant

Amethyst XT

Ultra-Threaded SE

Architecture

GCN 3.0

TSMC

Foundry

TSMC

90 nm

Process Size

28 nm

0.157 billion

Transistors

5 billion

150 mm²

Die Size

366 mm²

Graphics Features

9.0c (9_3)

DirectX

12 (12_0)

2.1

OpenGL

4.6

N/A

OpenCL

2.0

N/A

Vulkan

1.2

-

3.0

Shader Model

6.3

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