AMD Radeon RX 6600 XT vs AMD Radeon RX 560D

VS

AMD Radeon RX 6600 XT

AMD Radeon RX 560D

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT and 4GB VRAM Radeon RX 560D to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 XT 's Advantages

Released 4 years late

Boost Clock has increased by 120% (2589MHz vs 1175MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 96.00GB/s)

1152 additional rendering cores

AMD Radeon RX 560D 's Advantages

Lower TDP (65W vs 160W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 XT +403%

10.6 TFLOPS

Radeon RX 560D

2.106 TFLOPS

Radeon RX 6600 XT

VS

Radeon RX 560D

Graphics Card

Jul 2021

Release Date

Jul 2017

Navi II

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1968 MHz

Base Clock

1090 MHz

2589 MHz

Boost Clock

1175 MHz

2000 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

128bit

256.0GB/s

Bandwidth

96.00GB/s

Render Config

32

Compute Units

14

-

2048

Shading Units

896

128

TMUs

56

64

ROPs

16

-

32

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

1024 KB

32 MB

L3 Cache

-

Theoretical Performance

165.7 GPixel/s

Pixel Rate

18.80 GPixel/s

331.4 GTexel/s

Texture Rate

65.80 GTexel/s

21.21 TFLOPS

FP16 (half)

2.106 TFLOPS

10.60 TFLOPS

FP32 (float)

2.106 TFLOPS

662.8 GFLOPS

FP64 (double)

131.6 GFLOPS

Board Design

160W

TDP

65W

450 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

1x 8-pin

Power Connectors

None

Graphics Processor

Navi 23

GPU Name

Polaris 21

Navi 23 XT (215-130000006)

GPU Variant

Polaris 21 XL

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

11.06 billion

Transistors

3 billion

237 mm²

Die Size

123 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.2

-

6.7

Shader Model

6.4

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