AMD Radeon RX 6650M XT vs NVIDIA GeForce GT 645M

VS

AMD Radeon RX 6650M XT NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6650M XT and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6650M XT 's Advantages

Released 9 years and 3 months late

Boost Clock2416MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 28.80GB/s)

1664 additional rendering cores

NVIDIA GeForce GT 645M 's Advantages

Lower TDP (32W vs 120W)

Score

Benchmark

FP32 (float)

Radeon RX 6650M XT +1719%

9.896 TFLOPS

GeForce GT 645M

0.544 TFLOPS

Radeon RX 6650M XT

VS

GeForce GT 645M

Graphics Card

Jan 2022

Release Date

Oct 2012

Mobility Radeon

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

2068 MHz

Base Clock

-

2416 MHz

Boost Clock

-

2000 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

128bit

Memory Bus

128bit

256.0GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

32

Compute Units

-

2048

Shading Units

384

128

TMUs

32

64

ROPs

16

-

Tensor Cores

-

32

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

Theoretical Performance

154.6 GPixel/s

Pixel Rate

5.672 GPixel/s

309.2 GTexel/s

Texture Rate

22.69 GTexel/s

19.79 TFLOPS

FP16 (half)

-

9.896 TFLOPS

FP32 (float)

544.5 GFLOPS

618.5 GFLOPS

FP64 (double)

22.69 GFLOPS

Graphics Processor

Navi 23

GPU Name

GK107

-

GPU Variant

N13P-GS

RDNA 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

1.27 billion

237 mm²

Die Size

118 mm²

Board Design

120W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.0

6.5

Shader Model

5.1

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