Radeon 660M vs GeForce GTX 260 OEM

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Primary details

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

Place in the rankingnot rated328
Place by popularitynot in top-100not in top-100
Power efficiencyno data28.15
ArchitectureTesla 2.0 (2007−2013)RDNA 2.0 (2020−2024)
GPU code nameGT200BRembrandt+
Market segmentDesktopDesktop
Release date8 December 2009 (14 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 cores192384
Core clock speed518 MHz1500 MHz
Boost clock speedno data1900 MHz
Number of transistors1,400 million13,100 million
Manufacturing process technology55 nm6 nm
Power consumption (TDP)182 Watt40 Watt
Texture fill rate33.1545.60
Floating-point processing power0.4147 TFLOPS1.459 TFLOPS
ROPs2816
TMUs6424
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).

InterfacePCIe 2.0 x16PCIe 4.0 x8
Length267 mmno data
Width2-slotIGP
Supplementary power connectors2x 6-pinNone

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 amount1792 MBSystem Shared
Memory bus width448 BitSystem Shared
Memory clock speed1008 MHzSystem Shared
Memory bandwidth112.9 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 Connectors2x DVI, 1x S-VideoPortable Device Dependent

API compatibility

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

DirectX11.1 (10_0)12 Ultimate (12_2)
Shader Model4.06.7
OpenGL3.34.6
OpenCL1.12.0
VulkanN/A1.3
CUDA1.3-

Pros & cons summary


Recency 8 December 2009 3 January 2023
Chip lithography 55 nm 6 nm
Power consumption (TDP) 182 Watt 40 Watt

Radeon 660M has an age advantage of 13 years, a 816.7% more advanced lithography process, and 355% lower power consumption.

We couldn't decide between GeForce GTX 260 OEM and Radeon 660M. We've got no test results to judge.


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 GTX 260 OEM
GeForce GTX 260 OEM
AMD Radeon 660M
Radeon 660M

Comparisons with similar GPUs

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Community ratings

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2.9 7 votes

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3.6 304 votes

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Questions & comments

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