AMD Radeon RX 580 2048SP vs AMD Radeon HD 6490

VS

AMD Radeon RX 580 2048SP

AMD Radeon HD 6490

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 580 2048SP 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 580 2048SP 's Advantages

Released 7 years and 3 months late

Boost Clock1284MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (224.0GB/s vs 16.00GB/s)

1728 additional rendering cores

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 150W)

Score

Benchmark

FP32 (float)

Radeon RX 580 2048SP +1394%

5.259 TFLOPS

Radeon HD 6490

0.352 TFLOPS

Radeon RX 580 2048SP

VS

Radeon HD 6490

Graphics Card

Oct 2018

Release Date

Jul 2011

Polaris

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1168 MHz

Base Clock

-

1284 MHz

Boost Clock

-

1750 MHz

Memory Clock

500 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

224.0GB/s

Bandwidth

16.00GB/s

Render Config

32

Compute Units

4

-

2048

Shading Units

320

128

TMUs

16

32

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

41.09 GPixel/s

Pixel Rate

4.400 GPixel/s

164.4 GTexel/s

Texture Rate

8.800 GTexel/s

5.259 TFLOPS

FP16 (half)

-

5.259 TFLOPS

FP32 (float)

352.0 GFLOPS

328.7 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

39W

450 W

Suggested PSU

200 W

1x DVI 1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 8-pin

Power Connectors

None

Graphics Processor

Polaris 20

GPU Name

Redwood

Polaris 20 XL (215-0910052)

GPU Variant

Redwood LE

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

5.7 billion

Transistors

0.627 billion

232 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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