AMD Radeon RX 6500 XT vs AMD Radeon HD 6450

VS

AMD Radeon RX 6500 XT

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6500 XT 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 6500 XT 's Advantages

Released 10 years and 9 months late

Boost Clock2815MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (143.9GB/s vs 25.60GB/s)

864 additional rendering cores

AMD Radeon HD 6450 's Advantages

Lower TDP (18W vs 107W)

Score

Benchmark

FP32 (float)

Radeon RX 6500 XT +2782%

5.765 TFLOPS

Radeon HD 6450

0.2 TFLOPS

Radeon RX 6500 XT

VS

Radeon HD 6450

Graphics Card

Jan 2022

Release Date

Apr 2011

Navi II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 2.0 x16

Clock Speeds

2310 MHz

Base Clock

-

2815 MHz

Boost Clock

-

2248 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

512MB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

64bit

143.9GB/s

Bandwidth

25.60GB/s

Render Config

16

Compute Units

2

-

1024

Shading Units

160

64

TMUs

8

32

ROPs

4

-

16

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

128 KB

16 MB

L3 Cache

-

Theoretical Performance

90.08 GPixel/s

Pixel Rate

2.500 GPixel/s

180.2 GTexel/s

Texture Rate

5.000 GTexel/s

11.53 TFLOPS

FP16 (half)

-

5.765 TFLOPS

FP32 (float)

200.0 GFLOPS

360.3 GFLOPS

FP64 (double)

-

Board Design

107W

TDP

18W

300 W

Suggested PSU

200 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Navi 24

GPU Name

Caicos

Navi 24 XT (215-135000006)

GPU Variant

Caicos PRO

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

6 nm

Process Size

40 nm

5.4 billion

Transistors

0.37 billion

107 mm²

Die Size

67 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.2

OpenCL

1.2

1.3

Vulkan

N/A

-

6.6

Shader Model

5.0

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