Radeon 660M vs HD 3650

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in performance ranking	not rated	424
Place by popularity	not in top-100	not in top-100
Architecture	TeraScale (2005−2013)	RDNA 2 (2020−2022)
GPU code name	RV635	RDNA 2 Rembrandt
Market segment	Desktop	Laptop
Release date	20 January 2008 (16 years ago)	4 January 2022 (2 years ago)
Current price	$96	no data

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	120	384
Core clock speed	725 MHz	no data
Boost clock speed	no data	1900 MHz
Number of transistors	378 million	13,100 million
Manufacturing process technology	55 nm	6 nm
Power consumption (TDP)	65 Watt	45 Watt
Texture fill rate	5.800	45.60
Floating-point performance	174 gflops	no data

Form factor & compatibility

Information on Radeon HD 3650 and Radeon 660M compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Interface	PCIe 2.0 x16	PCIe 4.0 x8
Width	1-slot	no data
Supplementary power connectors	None	None

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR3	System Shared
Maximum RAM amount	256 MB	System Shared
Memory bus width	128 Bit	System Shared
Memory clock speed	1600 MHz	System Shared
Memory bandwidth	25.6 GB/s	no data
Shared memory	no data	-

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors

2x DVI, 1x S-Video

No outputs

API compatibility

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectX	10.1 (10_1)	12 (12_1)
Shader Model	4.1	6.5
OpenGL	3.3	4.6
OpenCL	N/A	2.0
Vulkan	N/A	1.2

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.

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Pros & cons summary

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Recency	20 January 2008	4 January 2022
Chip lithography	55 nm	6 nm
Power consumption (TDP)	65 Watt	45 Watt

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