AMD Radeon RX 6600 vs AMD Radeon RX 580G

VS

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 and 8GB VRAM Radeon RX 580G to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 's Advantages

Released 3 years late

Boost Clock has increased by 87% (2491MHz vs 1330MHz)

Lower TDP (132W vs 185W)

AMD Radeon RX 580G 's Advantages

Larger VRAM bandwidth (256.0GB/s vs 224.0GB/s)

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600 +45%

8.928 TFLOPS

Radeon RX 580G

6.129 TFLOPS

Radeon RX 6600

VS

Radeon RX 580G

Graphics Card

Oct 2021

Release Date

Oct 2018

Navi II

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1626 MHz

Base Clock

1257 MHz

2491 MHz

Boost Clock

1330 MHz

1750 MHz

Memory Clock

2000 MHz

Memory

8GB

Memory Size

8GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

256bit

224.0GB/s

Bandwidth

256.0GB/s

Render Config

-

SM Count

-

28

Compute Units

36

1792

Shading Units

2304

112

TMUs

144

64

ROPs

32

-

Tensor Cores

-

28

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

2 MB

Theoretical Performance

159.4 GPixel/s

Pixel Rate

42.56 GPixel/s

279.0 GTexel/s

Texture Rate

191.5 GTexel/s

17.86 TFLOPS

FP16 (half)

6.129 TFLOPS

8.928 TFLOPS

FP32 (float)

6.129 TFLOPS

558.0 GFLOPS

FP64 (double)

383.0 GFLOPS

Graphics Processor

Navi 23

GPU Name

Polaris 20

Navi 23 XL (215-130000016)

GPU Variant

Polaris 20 XTX (215-0910038)

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

11.06 billion

Transistors

5.7 billion

237 mm²

Die Size

232 mm²

Board Design

132W

TDP

185W

300 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

1x 8-pin

Power Connectors

1x 8-pin

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

-

CUDA

-

6.5

Shader Model

6.4

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