AMD Radeon RX 6650 XT vs NVIDIA GeForce RTX 5080

VS

AMD Radeon RX 6650 XT

NVIDIA GeForce RTX 5080

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6650 XT and 16GB VRAM GeForce RTX 5080 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 2520MHz)

Lower TDP (176W vs 350W)

NVIDIA GeForce RTX 5080 's Advantages

Released 2 years and 8 months late

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (973.8GB/s vs 280.3GB/s)

8704 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6650 XT

10.79 TFLOPS

GeForce RTX 5080 +402%

54.19 TFLOPS

Radeon RX 6650 XT

VS

GeForce RTX 5080

Graphics Card

May 2022

Release Date

Jan 2025

Navi II

Generation

GeForce 50

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 5.0 x16

Clock Speeds

2055 MHz

Base Clock

2235 MHz

2635 MHz

Boost Clock

2520 MHz

2190 MHz

Memory Clock

2400 MHz

Memory

8GB

Memory Size

16GB

GDDR6

Memory Type

GDDR7

128bit

Memory Bus

256bit

280.3GB/s

Bandwidth

973.8GB/s

Render Config

32

Compute Units

-

SM Count

84

2048

Shading Units

10752

128

TMUs

336

64

ROPs

128

-

Tensor Cores

336

32

RT Cores

84

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

322.6 GPixel/s

337.3 GTexel/s

Texture Rate

846.7 GTexel/s

21.59 TFLOPS

FP16 (half)

54.19 TFLOPS

10.79 TFLOPS

FP32 (float)

54.19 TFLOPS

674.6 GFLOPS

FP64 (double)

846.7 GFLOPS

Board Design

176W

TDP

350W

450 W

Suggested PSU

750 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 2.1a

1x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Navi 23

GPU Name

GB203

Navi 23 KXT (215-130000136)

GPU Variant

GB203-400-A1

RDNA 2.0

Architecture

Blackwell 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

0

11.06 billion

Transistors

Unknown

237 mm²

Die Size

377 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

10.1

6.5

Shader Model

6.8

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