GeForce RTX 4090 Ti vs Radeon HD 7660G

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Primary details

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

Place in the ranking1044not rated
Place by popularitynot in top-10066
Power efficiency2.43no data
ArchitectureTeraScale 3 (2010−2013)Ada Lovelace (2022−2024)
GPU code nameDevastatorAD102
Market segmentLaptopDesktop
Release date15 May 2012 (12 years ago)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 cores38418176
Core clock speed686 MHz2325 MHz
Boost clock speed686 MHz2565 MHz
Number of transistors1,303 million76,300 million
Manufacturing process technology32 nm5 nm
Power consumption (TDP)35 Watt600 Watt
Texture fill rate16.461,457
Floating-point processing power0.5268 TFLOPS93.24 TFLOPS
ROPs8192
TMUs24568
Tensor Coresno data568
Ray Tracing Coresno data142

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
InterfaceIGPPCIe 4.0 x16
Lengthno data336 mm
Widthno data3-slot
Supplementary power connectorsno data2x 16-pin

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 typeSystem SharedGDDR6X
Maximum RAM amountSystem Shared24 GB
Memory bus widthSystem Shared384 Bit
Memory clock speedSystem Shared1500 MHz
Memory bandwidthno data1.15 TB/s
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 ConnectorsNo outputs1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI-+

API compatibility

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

DirectX11.2 (11_0)12 Ultimate (12_2)
Shader Model5.06.7
OpenGL4.44.6
OpenCL1.23.0
VulkanN/A1.3
CUDA-8.9

Pros & cons summary


Chip lithography 32 nm 5 nm
Power consumption (TDP) 35 Watt 600 Watt

HD 7660G has 1614.3% lower power consumption.

RTX 4090 Ti, on the other hand, has a 540% more advanced lithography process.

We couldn't decide between Radeon HD 7660G and GeForce RTX 4090 Ti. We've got no test results to judge.

Be aware that Radeon HD 7660G is a notebook card while GeForce RTX 4090 Ti is a desktop 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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AMD Radeon HD 7660G
Radeon HD 7660G
NVIDIA GeForce RTX 4090 Ti
GeForce RTX 4090 Ti

Comparisons with similar GPUs

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Community ratings

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3.2 133 votes

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3.5 3333 votes

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Questions & comments

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