AMD Radeon RX 6650 XT vs AMD Radeon RX 580X

VS

AMD Radeon RX 6650 XT

AMD Radeon RX 580X

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6650 XT and 8GB VRAM Radeon RX 580X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6650 XT 's Advantages

Released 4 years and 1 months late

Boost Clock has increased by 97% (2635MHz vs 1340MHz)

Larger VRAM bandwidth (280.3GB/s vs 256.0GB/s)

Lower TDP (176W vs 185W)

AMD Radeon RX 580X 's Advantages

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6650 XT +74%

10.79 TFLOPS

Radeon RX 580X

6.175 TFLOPS

Radeon RX 6650 XT

VS

Radeon RX 580X

Graphics Card

May 2022

Release Date

Apr 2018

Navi II

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

2055 MHz

Base Clock

1257 MHz

2635 MHz

Boost Clock

1340 MHz

2190 MHz

Memory Clock

2000 MHz

Memory

8GB

Memory Size

8GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

256bit

280.3GB/s

Bandwidth

256.0GB/s

Render Config

32

Compute Units

36

-

2048

Shading Units

2304

128

TMUs

144

64

ROPs

32

-

32

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

2 MB

32 MB

L3 Cache

-

Theoretical Performance

168.6 GPixel/s

Pixel Rate

42.88 GPixel/s

337.3 GTexel/s

Texture Rate

193.0 GTexel/s

21.59 TFLOPS

FP16 (half)

6.175 TFLOPS

10.79 TFLOPS

FP32 (float)

6.175 TFLOPS

674.6 GFLOPS

FP64 (double)

385.9 GFLOPS

Board Design

176W

TDP

185W

450 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 Processor

Navi 23

GPU Name

Polaris 20

Navi 23 KXT (215-130000136)

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

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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