AMD Radeon 660M (4-CU)
About processor
Radeon 660M (4-CU) is a Integrated GPU manufactured by AMD. It was released on January 2023. The GPU has Up to 2 GB Shared DDR5 / LPDDR5 memory. The main features of the GPU are: Shading Units - 256, Theoretical Performance - 0.92 TFLOPS.
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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
Bus Interface
Integrated
RT Cores
4
Compute Units
4
Foundry
TSMC
Process Size
6 nm
Architecture
RDNA 2
Used in CPUs
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
No
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
4
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
AI Features
Intel Deep Learning Boost on GPU
No
Miscellaneous
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
OpenCL Version
2.2
OpenGL
4.6
CUDA
No
DirectX
DirectX 12
Benchmarks
FP32 (float)
Score
0.92
TFLOPS
3DMark Time Spy
Score
1017
Vulkan
Score
11226
OpenCL
Score
9903
Compared to Other GPU
FP32 (float)
/ TFLOPS
3DMark Time Spy
Vulkan
OpenCL
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