AMD Radeon HD 6490 vs AMD Radeon 540

VS

AMD Radeon HD 6490

AMD Radeon 540

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6490 and 1024MB VRAM AMD Radeon 540 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 50W)

AMD Radeon 540 's Advantages

Released 5 years and 9 months late

Larger VRAM bandwidth (24.00GB/s vs 16.00GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490

0.352 TFLOPS

AMD Radeon 540 +157%

0.908 TFLOPS

Radeon HD 6490

VS

AMD Radeon 540

Graphics Card

Jul 2011

Release Date

Apr 2017

Northern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

500 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

32bit

16.00GB/s

Bandwidth

24.00GB/s

Render Config

4

Compute Units

6

-

320

Shading Units

384

16

TMUs

24

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

18.93 GPixel/s

8.800 GTexel/s

Texture Rate

28.39 GTexel/s

-

FP16 (half)

908.5 GFLOPS

352.0 GFLOPS

FP32 (float)

908.5 GFLOPS

-

FP64 (double)

56.78 GFLOPS

Board Design

39W

TDP

50W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

Redwood

GPU Name

Lexa

Redwood LE

GPU Variant

Lexa PRO (215-0904018)

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

0.627 billion

Transistors

2.2 billion

104 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

1.3

-

5.0

Shader Model

6.7

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