AMD Radeon RX 550X Mobile vs AMD Radeon HD 6490M

VS

AMD Radeon RX 550X Mobile

AMD Radeon HD 6490M

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 550X Mobile and 512MB VRAM Radeon HD 6490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X Mobile 's Advantages

Released 7 years and 3 months late

Boost Clock1176MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (48.00GB/s vs 25.60GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550X Mobile +487%

1.505 TFLOPS

Radeon HD 6490M

0.256 TFLOPS

Radeon RX 550X Mobile

VS

Radeon HD 6490M

Graphics Card

Apr 2018

Release Date

Jan 2011

Mobility Radeon

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1100 MHz

Base Clock

-

1176 MHz

Boost Clock

-

1500 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

64bit

48.00GB/s

Bandwidth

25.60GB/s

Render Config

10

Compute Units

2

-

640

Shading Units

160

40

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

18.82 GPixel/s

Pixel Rate

3.200 GPixel/s

47.04 GTexel/s

Texture Rate

6.400 GTexel/s

1.505 TFLOPS

FP16 (half)

-

1.505 TFLOPS

FP32 (float)

256.0 GFLOPS

94.08 GFLOPS

FP64 (double)

-

Board Design

50W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Polaris 23

GPU Name

Seymour

Polaris 23 MXT

GPU Variant

Seymour XTX S3 (216-0809024)

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

2.2 billion

Transistors

0.37 billion

103 mm²

Die Size

67 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

6.4

Shader Model

5.0

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