AMD Radeon HD 6450 OEM vs AMD Radeon RX 6600 XT

VS

AMD Radeon HD 6450 OEM

AMD Radeon RX 6600 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 6450 OEM and 8GB VRAM Radeon RX 6600 XT 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 160W)

AMD Radeon RX 6600 XT 's Advantages

Released 10 years and 5 months late

Boost Clock2589MHz

More VRAM (8GB vs 512GB)

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

1888 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450 OEM

0.2 TFLOPS

Radeon RX 6600 XT +5200%

10.6 TFLOPS

Radeon HD 6450 OEM

VS

Radeon RX 6600 XT

Graphics Card

Feb 2011

Release Date

Jul 2021

Northern Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1968 MHz

-

Boost Clock

2589 MHz

533 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

8GB

GDDR3

Memory Type

GDDR6

64bit

Memory Bus

128bit

8.528GB/s

Bandwidth

256.0GB/s

Render Config

2

Compute Units

32

-

160

Shading Units

2048

8

TMUs

128

4

ROPs

64

-

RT Cores

32

8 KB (per CU)

L1 Cache

128 KB per Array

128 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

2.500 GPixel/s

Pixel Rate

165.7 GPixel/s

5.000 GTexel/s

Texture Rate

331.4 GTexel/s

-

FP16 (half)

21.21 TFLOPS

200.0 GFLOPS

FP32 (float)

10.60 TFLOPS

-

FP64 (double)

662.8 GFLOPS

Board Design

18W

TDP

160W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

Graphics Processor

Caicos

GPU Name

Navi 23

Junbonator

GPU Variant

Navi 23 XT (215-130000006)

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

0.37 billion

Transistors

11.06 billion

67 mm²

Die Size

237 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

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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