AMD Radeon HD 6490M vs AMD Radeon 540X Mobile

VS

AMD Radeon HD 6490M

AMD Radeon 540X Mobile

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6490M and 2GB VRAM Radeon 540X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 540X Mobile 's Advantages

Released 8 years and 1 months late

Boost Clock1095MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (32.00GB/s vs 25.60GB/s)

352 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M

0.256 TFLOPS

Radeon 540X Mobile +337%

1.121 TFLOPS

Radeon HD 6490M

VS

Radeon 540X Mobile

Graphics Card

Jan 2011

Release Date

Feb 2019

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1095 MHz

800 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

64bit

25.60GB/s

Bandwidth

32.00GB/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

512 KB

-

Theoretical Performance

3.200 GPixel/s

Pixel Rate

17.52 GPixel/s

6.400 GTexel/s

Texture Rate

35.04 GTexel/s

-

FP16 (half)

1121 GFLOPS

256.0 GFLOPS

FP32 (float)

1121 GFLOPS

-

FP64 (double)

70.08 GFLOPS

Board Design

Unknown

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Seymour

GPU Name

Lexa

Seymour XTX S3 (216-0809024)

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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