ATI Mobility Radeon HD 2400 XT Mac Edition vs AMD Radeon R5 M255

VS

ATI Mobility Radeon HD 2400 XT Mac Edition

AMD Radeon R5 M255

We compared two Mobile platform GPUs: 128MB VRAM Mobility Radeon HD 2400 XT Mac Edition and 2GB VRAM Radeon R5 M255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 M255 's Advantages

Released 7 years and 4 months late

Boost Clock940MHz

More VRAM (2GB vs 128GB)

Larger VRAM bandwidth (32.00GB/s vs 12.80GB/s)

344 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 2400 XT Mac Edition

0.052 TFLOPS

Radeon R5 M255 +1286%

0.721 TFLOPS

Mobility Radeon HD 2400 XT Mac Edition

VS

Radeon R5 M255

Graphics Card

Jun 2007

Release Date

Oct 2014

M7x

Generation

Gem System

Mobile

Type

Mobile

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

940 MHz

800 MHz

Memory Clock

1000 MHz

Memory

128MB

Memory Size

2GB

GDDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

12.80GB/s

Bandwidth

32.00GB/s

Render Config

2

Compute Units

6

-

40

Shading Units

384

4

TMUs

24

4

ROPs

8

-

L1 Cache

16 KB (per CU)

32 KB

L2 Cache

256 KB

-

Theoretical Performance

2.600 GPixel/s

Pixel Rate

7.520 GPixel/s

2.600 GTexel/s

Texture Rate

22.56 GTexel/s

-

FP16 (half)

721.9 GFLOPS

52.00 GFLOPS

FP32 (float)

721.9 GFLOPS

-

FP64 (double)

45.12 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

M74

GPU Name

Topaz

M74-M (216RMAKA12FG)

GPU Variant

Topaz PRO (216-0858030)

TeraScale

Architecture

GCN 3.0

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

0.18 billion

Transistors

1.55 billion

85 mm²

Die Size

125 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (12_0)

3.3

OpenGL

4.6

N/A

OpenCL

2.1

N/A

Vulkan

1.2.170

-

4.0

Shader Model

6.5

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