AMD Radeon RX 6650 XT vs NVIDIA GeForce RTX 4080 16 GB

VS

AMD Radeon RX 6650 XT

NVIDIA GeForce RTX 4080 16 GB

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6650 XT and 16GB VRAM GeForce RTX 4080 16 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6650 XT 's Advantages

Boost Clock has increased by 5% (2635MHz vs 2505MHz)

Lower TDP (176W vs 320W)

NVIDIA GeForce RTX 4080 16 GB 's Advantages

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (716.8GB/s vs 280.3GB/s)

7680 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6650 XT

10.79 TFLOPS

GeForce RTX 4080 16 GB +351%

48.74 TFLOPS

Radeon RX 6650 XT

VS

GeForce RTX 4080 16 GB

Graphics Card

May 2022

Release Date

Sep 2022

Navi II

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

2055 MHz

Base Clock

2205 MHz

2635 MHz

Boost Clock

2505 MHz

2190 MHz

Memory Clock

1400 MHz

Memory

8GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6X

128bit

Memory Bus

256bit

280.3GB/s

Bandwidth

716.8GB/s

Render Config

32

Compute Units

-

SM Count

76

2048

Shading Units

9728

128

TMUs

304

64

ROPs

112

-

Tensor Cores

304

32

RT Cores

76

128 KB per Array

L1 Cache

128 KB (per SM)

2 MB

L2 Cache

64 MB

32 MB

L3 Cache

-

Theoretical Performance

168.6 GPixel/s

Pixel Rate

280.6 GPixel/s

337.3 GTexel/s

Texture Rate

761.5 GTexel/s

21.59 TFLOPS

FP16 (half)

48.74 TFLOPS

10.79 TFLOPS

FP32 (float)

48.74 TFLOPS

674.6 GFLOPS

FP64 (double)

761.5 GFLOPS

Board Design

176W

TDP

320W

450 W

Suggested PSU

700 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Navi 23

GPU Name

AD103

Navi 23 KXT (215-130000136)

GPU Variant

AD103-300-A1

RDNA 2.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

7 nm

Process Size

4 nm

11.06 billion

Transistors

45.9 billion

237 mm²

Die Size

379 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

8.9

6.5

Shader Model

6.6

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