NVIDIA GeForce RTX 4090 Ti vs AMD Radeon RX 6650 XT

VS

NVIDIA GeForce RTX 4090 Ti AMD Radeon RX 6650 XT

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 Ti and 8GB VRAM Radeon RX 6650 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Ti 's Advantages

More VRAM (24GB vs 8GB)

Larger VRAM bandwidth (1152GB/s vs 280.3GB/s)

16128 additional rendering cores

AMD Radeon RX 6650 XT 's Advantages

Boost Clock has increased by 3% (2635MHz vs 2565MHz)

Lower TDP (176W vs 600W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Ti +764%

93.24 TFLOPS

Radeon RX 6650 XT

10.79 TFLOPS

GeForce RTX 4090 Ti

VS

Radeon RX 6650 XT

Graphics Card

Unknown

Release Date

May 2022

GeForce 40

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

2325 MHz

Base Clock

2055 MHz

2565 MHz

Boost Clock

2635 MHz

1500 MHz

Memory Clock

2190 MHz

Memory

24GB

Memory Size

8GB

GDDR6X

Memory Type

GDDR6

384bit

Memory Bus

128bit

1152GB/s

Bandwidth

280.3GB/s

Render Config

142

SM Count

-

Compute Units

32

18176

Shading Units

2048

568

TMUs

128

192

ROPs

64

568

Tensor Cores

-

142

RT Cores

32

128 KB (per SM)

L1 Cache

128 KB per Array

96 MB

L2 Cache

2 MB

Theoretical Performance

492.5 GPixel/s

Pixel Rate

168.6 GPixel/s

1457 GTexel/s

Texture Rate

337.3 GTexel/s

93.24 TFLOPS

FP16 (half)

21.59 TFLOPS

93.24 TFLOPS

FP32 (float)

10.79 TFLOPS

1457 GFLOPS

FP64 (double)

674.6 GFLOPS

Graphics Processor

AD102

GPU Name

Navi 23

AD102-400-A1

GPU Variant

Navi 23 KXT (215-130000136)

Ada Lovelace

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

76.3 billion

Transistors

11.06 billion

609 mm²

Die Size

237 mm²

Board Design

600W

TDP

176W

1000 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 16-pin

Power Connectors

1x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

8.9

CUDA

-

6.7

Shader Model

6.5

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