ATI Mobility Radeon X2500 vs AMD Radeon Pro 555X

VS

ATI Mobility Radeon X2500

AMD Radeon Pro 555X

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon X2500 and 4GB VRAM Radeon Pro 555X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555X 's Advantages

Released 11 years and 1 months late

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (94.08GB/s vs 12.80GB/s)

768 additional rendering cores

Score

Mobility Radeon X2500

VS

Radeon Pro 555X

Graphics Card

Jun 2007

Release Date

Jul 2018

M6x

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

400 MHz

Memory Clock

1470 MHz

Memory

256MB

Memory Size

4GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

128bit

12.80GB/s

Bandwidth

94.08GB/s

Render Config

-

Compute Units

12

-

Shading Units

768

4

TMUs

48

4

ROPs

16

-

L1 Cache

16 KB (per CU)

-

L2 Cache

1024 KB

-

Theoretical Performance

1.840 GPixel/s

Pixel Rate

14.51 GPixel/s

1.840 GTexel/s

Texture Rate

43.54 GTexel/s

-

FP16 (half)

1393 GFLOPS

-

FP32 (float)

1393 GFLOPS

-

FP64 (double)

87.07 GFLOPS

Board Design

Unknown

TDP

75W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

M66

GPU Name

Polaris 21

-

GPU Variant

Polaris 21 PRO

Ultra-Threaded SE

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

90 nm

Process Size

14 nm

0.157 billion

Transistors

3 billion

150 mm²

Die Size

123 mm²

Graphics Features

9.0c (9_3)

DirectX

12 (12_0)

2.1

OpenGL

4.6

N/A

OpenCL

2.1

N/A

Vulkan

1.2

-

3.0

Shader Model

6.4

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