AMD Radeon HD 6450 OEM vs AMD Radeon RX 580X

VS

AMD Radeon HD 6450 OEM

AMD Radeon RX 580X

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 6450 OEM and 8GB VRAM Radeon RX 580X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6450 OEM 's Advantages

Lower TDP (18W vs 185W)

AMD Radeon RX 580X 's Advantages

Released 7 years and 2 months late

Boost Clock1340MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (256.0GB/s vs 8.528GB/s)

2144 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450 OEM

0.2 TFLOPS

Radeon RX 580X +2987%

6.175 TFLOPS

Radeon HD 6450 OEM

VS

Radeon RX 580X

Graphics Card

Feb 2011

Release Date

Apr 2018

Northern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1257 MHz

-

Boost Clock

1340 MHz

533 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

8GB

GDDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

8.528GB/s

Bandwidth

256.0GB/s

Render Config

2

Compute Units

36

-

160

Shading Units

2304

8

TMUs

144

4

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

2 MB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

42.88 GPixel/s

5.000 GTexel/s

Texture Rate

193.0 GTexel/s

-

FP16 (half)

6.175 TFLOPS

200.0 GFLOPS

FP32 (float)

6.175 TFLOPS

-

FP64 (double)

385.9 GFLOPS

Board Design

18W

TDP

185W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

Graphics Processor

Caicos

GPU Name

Polaris 20

Junbonator

GPU Variant

Polaris 20 XTX (215-0910038)

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

0.37 billion

Transistors

5.7 billion

67 mm²

Die Size

232 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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