Radeon 660M vs ATI Mobility X1600

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Primary details

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

Place in the rankingnot rated550
Place by popularitynot in top-100not in top-100
Power efficiencyno data14.93
ArchitectureR500 (2005−2007)RDNA 2.0 (2020−2025)
GPU code nameM56Rembrandt+
Market segmentLaptopLaptop
Release date1 February 2006 (19 years ago)3 January 2023 (2 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores17384
Core clock speed450 MHz1500 MHz
Boost clock speed450 MHz1900 MHz
Number of transistors157 million13,100 million
Manufacturing process technology90 nm6 nm
Power consumption (TDP)no data40 Watt
Texture fill rate1.80045.60
Floating-point processing powerno data1.459 TFLOPS
ROPs416
TMUs424
Ray Tracing Coresno data6
L0 Cacheno data96 KB
L1 Cacheno data128 KB
L2 Cacheno data2 MB
L3 Cacheno data8 MB

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop sizemedium sizedno data
InterfacePCIe 1.0 x16PCIe 4.0 x8
Supplementary power connectorsno dataNone

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 typeGDDR3System Shared
Maximum RAM amount256 MBSystem Shared
Memory bus width128 BitSystem Shared
Memory clock speed470 MHzSystem Shared
Memory bandwidth15.04 GB/sno data
Shared memory-+

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display ConnectorsNo outputsPortable Device Dependent

API and SDK support

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX9.0c (9_3)12 Ultimate (12_2)
Shader Model3.06.7
OpenGL2.04.6
OpenCLN/A2.0
VulkanN/A1.3

Pros & cons summary


Recency 1 February 2006 3 January 2023
Chip lithography 90 nm 6 nm

Radeon 660M has an age advantage of 16 years, and a 1400% more advanced lithography process.

We couldn't decide between Mobility Radeon X1600 and Radeon 660M. We've got no test results to judge.

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ATI Mobility Radeon X1600
Mobility Radeon X1600
AMD Radeon 660M
Radeon 660M

Other comparisons

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

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3.1 22 votes

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3.7 411 votes

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