Radeon 660M vs GeForce 7800 GS+ AGP

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Primary details

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

Place in the rankingnot rated329
Place by popularitynot in top-100not in top-100
Power efficiencyno data28.39
ArchitectureCurie (2003−2013)RDNA 2.0 (2020−2024)
GPU code nameG71Rembrandt+
Market segmentDesktopLaptop
Release date28 September 2006 (18 years ago)3 January 2023 (1 year 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 coresno data384
Core clock speed450 MHz1500 MHz
Boost clock speedno data1900 MHz
Number of transistors278 million13,100 million
Manufacturing process technology90 nm6 nm
Power consumption (TDP)no data40 Watt
Texture fill rate7.20045.60
Floating-point processing powerno data1.459 TFLOPS
ROPs1616
TMUs1624
Ray Tracing Coresno data6

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).

InterfaceAGP 8xPCIe 4.0 x8
Width1-slotno data
Supplementary power connectors1x MolexNone

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 amount512 MBSystem Shared
Memory bus width256 BitSystem Shared
Memory clock speed625 MHzSystem Shared
Memory bandwidth40 GB/sno data
Shared memory-+

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 Connectors1x DVI, 1x VGA, 1x S-VideoPortable Device Dependent

API compatibility

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
OpenGL2.14.6
OpenCLN/A2.0
VulkanN/A1.3

Pros & cons summary


Recency 28 September 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 GeForce 7800 GS+ AGP and Radeon 660M. We've got no test results to judge.

Be aware that GeForce 7800 GS+ AGP is a desktop card while Radeon 660M is a notebook one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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NVIDIA GeForce 7800 GS+ AGP
GeForce 7800 GS+ AGP
AMD Radeon 660M
Radeon 660M

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Community ratings

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