AMD Radeon RX 580 OEM vs AMD Radeon RX 6650 XT

VS

AMD Radeon RX 580 OEM

AMD Radeon RX 6650 XT

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

Main Differences

AMD Radeon RX 580 OEM 's Advantages

256 additional rendering cores

Lower TDP (150W vs 176W)

AMD Radeon RX 6650 XT 's Advantages

Released 5 years and 11 months late

Boost Clock has increased by 108% (2635MHz vs 1266MHz)

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

Score

Benchmark

FP32 (float)

Radeon RX 580 OEM

5.834 TFLOPS

Radeon RX 6650 XT +84%

10.79 TFLOPS

Radeon RX 580 OEM

VS

Radeon RX 6650 XT

Graphics Card

Jun 2016

Release Date

May 2022

Polaris

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1120 MHz

Base Clock

2055 MHz

1266 MHz

Boost Clock

2635 MHz

2000 MHz

Memory Clock

2190 MHz

Memory

8GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

128bit

256.0GB/s

Bandwidth

280.3GB/s

Render Config

36

Compute Units

32

-

2304

Shading Units

2048

144

TMUs

128

32

ROPs

64

-

RT Cores

32

16 KB (per CU)

L1 Cache

128 KB per Array

2 MB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

40.51 GPixel/s

Pixel Rate

168.6 GPixel/s

182.3 GTexel/s

Texture Rate

337.3 GTexel/s

5.834 TFLOPS

FP16 (half)

21.59 TFLOPS

5.834 TFLOPS

FP32 (float)

10.79 TFLOPS

364.6 GFLOPS

FP64 (double)

674.6 GFLOPS

Board Design

150W

TDP

176W

450 W

Suggested PSU

450 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

Ellesmere

GPU Name

Navi 23

Polaris 10 XT (215-0876184)

GPU Variant

Navi 23 KXT (215-130000136)

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

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

-

6.4

Shader Model

6.5

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