Home / AMD Radeon 660M (4-CU): Performance and Specs

AMD Radeon 660M (4-CU)

Name: AMD Radeon 660M (4-CU)
Brand: AMD

AMD Radeon 660M (4-CU) is a Integrated video accelerator from AMD. It began to be released in January 2023. The GPU has a boost frequency of 1800 MHz. Its characteristics, as well as benchmark results, are presented in more detail below.

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Basic

Label Name

AMD

Platform

Integrated

Launch Date

January 2023

Former Codename

Rembrandt R

GPU Lithography

6 nm

Model Name

AMD Radeon 660M

Generation

Radeon 600M

Boost Clock

1800 MHz

Shading Units

The most fundamental processing unit is the Streaming Processor (SP), where specific instructions and tasks are executed. GPUs perform parallel computing, which means multiple SPs work simultaneously to process tasks.

256

RT Cores

Compute Units

Bus Interface

Integrated

Foundry

TSMC

Process Size

6 nm

Architecture

RDNA 2

Used in CPUs

AMD Ryzen 3 7335U

Memory Specifications

Memory Size

Up to 2 GB Shared

Memory Type

DDR5 / LPDDR5

Memory Bus

The memory bus width refers to the number of bits of data that the video memory can transfer within a single clock cycle. The larger the bus width, the greater the amount of data that can be transmitted instantaneously, making it one of the crucial parameters of video memory. The memory bandwidth is calculated as: Memory Bandwidth = Memory Frequency x Memory Bus Width / 8. Therefore, when the memory frequencies are similar, the memory bus width will determine the size of the memory bandwidth.

128-bit

Bandwidth

Memory bandwidth refers to the data transfer rate between the graphics chip and the video memory. It is measured in bytes per second, and the formula to calculate it is: memory bandwidth = working frequency × memory bus width / 8 bits.

Up to 76.8 GB/s DDR5-4800 / 102.4 GB/s LPDDR5-6400

Display and Media

AMD FreeSync

Yes

AV1 Encode/Decode

Decode only

DisplayPort Extensions

Adaptive-Sync, HBR3, HDR Metadata

H.264 Hardware Encode/Decode

Encode / Decode

H.265 HEVC Hardware Encode/Decode

Encode / Decode, 8-bit / 10-bit

HDCP Version

2.2

HDMI Version

2.1

Intel Quick Sync Video

Max Resolution DP

3840x2160 @ 60Hz

Max Video Decode Bandwidth

1080p60 MPEG2, 1080p60 VC1, 1080p240 8bpc VP9, 1080p240 10bpc VP9, 1080p240 H.264, 1080p240 8bpc H.265, 1080p240 10bpc H.265, 1080p240 JPEG 8bpc

Max Video Encode Bandwidth

1080p205 8bpc H.264, 1440p115 8bpc H.264, 2160p51 8bpc H.264, 1080p205 8bpc H.265, 1440p115 8bpc H.265, 2160p51 8bpc H.265

Number of Displays Supported

Outputs

HDMI 2.1 / DisplayPort 2.0 / USB Type-C DisplayPort Alt Mode

USB Type-C DisplayPort Alternate Mode

Yes

Wireless Display

Miracast

Theoretical Performance

FP16 (half)

An important metric for measuring GPU performance is floating-point computing capability. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy.

1.8432 TFLOPS

FP32 (float)

An important metric for measuring GPU performance is floating-point computing capability. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.

0.92 TFlops