AMD Radeon RX 6650 XT vs AMD Radeon RX 455 OEM

VS

AMD Radeon RX 6650 XT

AMD Radeon RX 455 OEM

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6650 XT and 2GB VRAM Radeon RX 455 OEM 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 5 years and 11 months late

Boost Clock2635MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (280.3GB/s vs 104.0GB/s)

1280 additional rendering cores

AMD Radeon RX 455 OEM 's Advantages

Lower TDP (100W vs 176W)

Score

Benchmark

FP32 (float)

Radeon RX 6650 XT +568%

10.79 TFLOPS

Radeon RX 455 OEM

1.613 TFLOPS

Radeon RX 6650 XT

VS

Radeon RX 455 OEM

Graphics Card

May 2022

Release Date

Jun 2016

Navi II

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

2055 MHz

Base Clock

-

2635 MHz

Boost Clock

-

2190 MHz

Memory Clock

1625 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

128bit

280.3GB/s

Bandwidth

104.0GB/s

Render Config

32

Compute Units

12

-

2048

Shading Units

768

128

TMUs

48

64

ROPs

16

-

32

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

32 MB

L3 Cache

-

Theoretical Performance

168.6 GPixel/s

Pixel Rate

16.80 GPixel/s

337.3 GTexel/s

Texture Rate

50.40 GTexel/s

21.59 TFLOPS

FP16 (half)

-

10.79 TFLOPS

FP32 (float)

1.613 TFLOPS

674.6 GFLOPS

FP64 (double)

100.8 GFLOPS

Board Design

176W

TDP

100W

450 W

Suggested PSU

300 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 23

GPU Name

Tobago

Navi 23 KXT (215-130000136)

GPU Variant

Tobago PRO (215-0875010)

RDNA 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

2.08 billion

237 mm²

Die Size

160 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.3

Vulkan

1.2

-

6.5

Shader Model

6.3

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