AMD Radeon RX 6600 vs AMD Radeon RX 580 OEM

VS

AMD Radeon RX 6600

AMD Radeon RX 580 OEM

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

Main Differences

AMD Radeon RX 6600 's Advantages

Released 5 years and 4 months late

Boost Clock has increased by 97% (2491MHz vs 1266MHz)

Lower TDP (132W vs 150W)

AMD Radeon RX 580 OEM 's Advantages

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

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600 +53%

8.928 TFLOPS

Radeon RX 580 OEM

5.834 TFLOPS

Radeon RX 6600

VS

Radeon RX 580 OEM

Graphics Card

Oct 2021

Release Date

Jun 2016

Navi II

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1626 MHz

Base Clock

1120 MHz

2491 MHz

Boost Clock

1266 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

28

Compute Units

36

-

1792

Shading Units

2304

112

TMUs

144

64

ROPs

32

-

28

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

2 MB

32 MB

L3 Cache

-

Theoretical Performance

159.4 GPixel/s

Pixel Rate

40.51 GPixel/s

279.0 GTexel/s

Texture Rate

182.3 GTexel/s

17.86 TFLOPS

FP16 (half)

5.834 TFLOPS

8.928 TFLOPS

FP32 (float)

5.834 TFLOPS

558.0 GFLOPS

FP64 (double)

364.6 GFLOPS

Board Design

132W

TDP

150W

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 6-pin

Graphics Processor

Navi 23

GPU Name

Ellesmere

Navi 23 XL (215-130000016)

GPU Variant

Polaris 10 XT (215-0876184)

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

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

-

6.5

Shader Model

6.4

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