AMD Radeon RX 6600 XT vs AMD Radeon Sky 500

VS

AMD Radeon RX 6600 XT

AMD Radeon Sky 500

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT and 4GB VRAM Radeon Sky 500 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 8 years and 4 months late

Boost Clock2589MHz

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 153.6GB/s)

768 additional rendering cores

AMD Radeon Sky 500 's Advantages

Lower TDP (150W vs 160W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 XT +335%

10.6 TFLOPS

Radeon Sky 500

2.432 TFLOPS

Radeon RX 6600 XT

VS

Radeon Sky 500

Graphics Card

Jul 2021

Release Date

Mar 2013

Navi II

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1968 MHz

Base Clock

-

2589 MHz

Boost Clock

-

2000 MHz

Memory Clock

1200 MHz

Memory

8GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

256bit

256.0GB/s

Bandwidth

153.6GB/s

Render Config

32

Compute Units

20

-

2048

Shading Units

1280

128

TMUs

80

64

ROPs

32

-

32

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

32 MB

L3 Cache

-

Theoretical Performance

165.7 GPixel/s

Pixel Rate

30.40 GPixel/s

331.4 GTexel/s

Texture Rate

76.00 GTexel/s

21.21 TFLOPS

FP16 (half)

-

10.60 TFLOPS

FP32 (float)

2.432 TFLOPS

662.8 GFLOPS

FP64 (double)

152.0 GFLOPS

Board Design

160W

TDP

150W

450 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DisplayPort 1.2

1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 23

GPU Name

Pitcairn

Navi 23 XT (215-130000006)

GPU Variant

Pitcairn XT GL (215-0828073)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

2.8 billion

237 mm²

Die Size

212 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

6.7

Shader Model

5.1

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