AMD Radeon RX 560 vs AMD Radeon HD 6450

VS

AMD Radeon RX 560

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 560 and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 560 's Advantages

Released 6 years late

Boost Clock1275MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (112.0GB/s vs 25.60GB/s)

864 additional rendering cores

AMD Radeon HD 6450 's Advantages

Lower TDP (18W vs 75W)

Score

Benchmark

FP32 (float)

Radeon RX 560 +1205%

2.611 TFLOPS

Radeon HD 6450

0.2 TFLOPS

Radeon RX 560

VS

Radeon HD 6450

Graphics Card

Apr 2017

Release Date

Apr 2011

Polaris

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1175 MHz

Base Clock

-

1275 MHz

Boost Clock

-

1750 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

112.0GB/s

Bandwidth

25.60GB/s

Render Config

16

Compute Units

2

-

1024

Shading Units

160

64

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

20.40 GPixel/s

Pixel Rate

2.500 GPixel/s

81.60 GTexel/s

Texture Rate

5.000 GTexel/s

2.611 TFLOPS

FP16 (half)

-

2.611 TFLOPS

FP32 (float)

200.0 GFLOPS

163.2 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

18W

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

Polaris 21

GPU Name

Caicos

Polaris 21 XT (215-0908004)

GPU Variant

Caicos PRO

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

3 billion

Transistors

0.37 billion

123 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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