AMD Radeon RX 6650M XT vs NVIDIA GeForce GTX 660M

VS

AMD Radeon RX 6650M XT NVIDIA GeForce GTX 660M

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6650M XT and 1024MB VRAM GeForce GTX 660M 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 10 months late

Boost Clock has increased by 154% (2416MHz vs 950MHz)

More VRAM (8GB vs 1GB)

Larger VRAM bandwidth (256.0GB/s vs 64.00GB/s)

1664 additional rendering cores

NVIDIA GeForce GTX 660M 's Advantages

Lower TDP (50W vs 120W)

Score

Benchmark

FP32 (float)

Radeon RX 6650M XT +1255%

9.896 TFLOPS

GeForce GTX 660M

0.73 TFLOPS

Radeon RX 6650M XT

VS

GeForce GTX 660M

Graphics Card

Jan 2022

Release Date

Mar 2012

Mobility Radeon

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

2068 MHz

Base Clock

835 MHz

2416 MHz

Boost Clock

950 MHz

2000 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

128bit

256.0GB/s

Bandwidth

64.00GB/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

7.600 GPixel/s

309.2 GTexel/s

Texture Rate

30.40 GTexel/s

19.79 TFLOPS

FP16 (half)

-

9.896 TFLOPS

FP32 (float)

729.6 GFLOPS

618.5 GFLOPS

FP64 (double)

30.40 GFLOPS

Graphics Processor

Navi 23

GPU Name

GK107

-

GPU Variant

N13E-GE-A2

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

50W

-

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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