AMD Radeon HD 6490M Mac Edition vs AMD Radeon 540 Mobile

VS

AMD Radeon HD 6490M Mac Edition

AMD Radeon 540 Mobile

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 2GB VRAM Radeon 540 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 540 Mobile 's Advantages

Released 7 years and 10 months late

Boost Clock1124MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (48.00GB/s vs 25.41GB/s)

352 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition

0.24 TFLOPS

Radeon 540 Mobile +379%

1.151 TFLOPS

Radeon HD 6490M Mac Edition

VS

Radeon 540 Mobile

Graphics Card

May 2011

Release Date

Mar 2019

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1124 MHz

794 MHz

Memory Clock

1500 MHz

Memory

256MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

64bit

25.41GB/s

Bandwidth

48.00GB/s

Render Config

2

Compute Units

8

-

160

Shading Units

512

8

TMUs

32

4

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

3.000 GPixel/s

Pixel Rate

17.98 GPixel/s

6.000 GTexel/s

Texture Rate

35.97 GTexel/s

-

FP16 (half)

1151 GFLOPS

240.0 GFLOPS

FP32 (float)

1151 GFLOPS

-

FP64 (double)

71.94 GFLOPS

Board Design

Unknown

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Seymour

GPU Name

Lexa

Seymour XTX M2 (216-0809000)

GPU Variant

Lexa PRO (215-0904018)

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

0.37 billion

Transistors

2.2 billion

67 mm²

Die Size

103 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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