AMD Radeon RX 580G vs AMD Radeon RX 6600 XT

VS

AMD Radeon RX 580G AMD Radeon RX 6600 XT

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580G 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 RX 580G 's Advantages

256 additional rendering cores

AMD Radeon RX 6600 XT 's Advantages

Released 2 years and 9 months late

Boost Clock has increased by 95% (2589MHz vs 1330MHz)

Lower TDP (160W vs 185W)

Score

Benchmark

FP32 (float)

Radeon RX 580G

6.129 TFLOPS

Radeon RX 6600 XT +72%

10.6 TFLOPS

Radeon RX 580G

VS

Radeon RX 6600 XT

Graphics Card

Oct 2018

Release Date

Jul 2021

Polaris

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1257 MHz

Base Clock

1968 MHz

1330 MHz

Boost Clock

2589 MHz

2000 MHz

Memory Clock

2000 MHz

Memory

8GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

128bit

256.0GB/s

Bandwidth

256.0GB/s

Render Config

-

SM Count

-

36

Compute Units

32

2304

Shading Units

2048

144

TMUs

128

32

ROPs

64

-

Tensor Cores

-

RT Cores

32

16 KB (per CU)

L1 Cache

128 KB per Array

2 MB

L2 Cache

2 MB

Theoretical Performance

42.56 GPixel/s

Pixel Rate

165.7 GPixel/s

191.5 GTexel/s

Texture Rate

331.4 GTexel/s

6.129 TFLOPS

FP16 (half)

21.21 TFLOPS

6.129 TFLOPS

FP32 (float)

10.60 TFLOPS

383.0 GFLOPS

FP64 (double)

662.8 GFLOPS

Graphics Processor

Polaris 20

GPU Name

Navi 23

Polaris 20 XTX (215-0910038)

GPU Variant

Navi 23 XT (215-130000006)

GCN 4.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

5.7 billion

Transistors

11.06 billion

232 mm²

Die Size

237 mm²

Board Design

185W

TDP

160W

450 W

Suggested PSU

450 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 8-pin

Power Connectors

1x 8-pin

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.3

-

CUDA

-

6.4

Shader Model

6.7

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