AMD Radeon RX 550X vs AMD Radeon HD 6490

VS

AMD Radeon RX 550X

AMD Radeon HD 6490

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 550X and 1024MB VRAM Radeon HD 6490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X 's Advantages

Released 7 years and 5 months late

Boost Clock1183MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (96.00GB/s vs 16.00GB/s)

192 additional rendering cores

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 50W)

Score

Benchmark

FP32 (float)

Radeon RX 550X +244%

1.211 TFLOPS

Radeon HD 6490

0.352 TFLOPS

Radeon RX 550X

VS

Radeon HD 6490

Graphics Card

Dec 2018

Release Date

Jul 2011

Polaris

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1100 MHz

Base Clock

-

1183 MHz

Boost Clock

-

1500 MHz

Memory Clock

500 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

128bit

96.00GB/s

Bandwidth

16.00GB/s

Render Config

8

Compute Units

4

-

512

Shading Units

320

32

TMUs

16

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

18.93 GPixel/s

Pixel Rate

4.400 GPixel/s

37.86 GTexel/s

Texture Rate

8.800 GTexel/s

1211 GFLOPS

FP16 (half)

-

1211 GFLOPS

FP32 (float)

352.0 GFLOPS

75.71 GFLOPS

FP64 (double)

-

Board Design

50W

TDP

39W

250 W

Suggested PSU

200 W

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

Lexa

GPU Name

Redwood

Lexa PRO (215-0904018)

GPU Variant

Redwood LE

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

2.2 billion

Transistors

0.627 billion

103 mm²

Die Size

104 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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