Radeon 660M vs GeForce GTX 780 6 GB

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Primary details

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

Place in the rankingnot rated332
Place by popularitynot in top-100not in top-100
Power efficiencyno data27.95
ArchitectureKepler (2012−2018)RDNA 2.0 (2020−2024)
GPU code nameGK110BRembrandt+
Market segmentDesktopLaptop
Release date10 September 2013 (11 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 cores2304384
Core clock speed863 MHz1500 MHz
Boost clock speed902 MHz1900 MHz
Number of transistors7,080 million13,100 million
Manufacturing process technology28 nm6 nm
Power consumption (TDP)250 Watt40 Watt
Texture fill rate173.245.60
Floating-point processing power4.156 TFLOPS1.459 TFLOPS
ROPs4816
TMUs19224
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 3.0 x16PCIe 4.0 x8
Length267 mmno data
Width2-slotno data
Supplementary power connectors1x 6-pin + 1x 8-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 typeGDDR5System Shared
Maximum RAM amount6 GBSystem Shared
Memory bus width384 BitSystem Shared
Memory clock speed1502 MHzSystem Shared
Memory bandwidth288.4 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 HDMI, 1x DisplayPortPortable Device Dependent
HDMI+-

API compatibility

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

DirectX12 (11_1)12 Ultimate (12_2)
Shader Model5.16.7
OpenGL4.64.6
OpenCL1.22.0
Vulkan1.1.1261.3
CUDA3.5-

Pros & cons summary


Recency 10 September 2013 3 January 2023
Chip lithography 28 nm 6 nm
Power consumption (TDP) 250 Watt 40 Watt

Radeon 660M has an age advantage of 9 years, a 366.7% more advanced lithography process, and 525% lower power consumption.

We couldn't decide between GeForce GTX 780 6 GB and Radeon 660M. We've got no test results to judge.

Be aware that GeForce GTX 780 6 GB 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 GTX 780 6 GB
GeForce GTX 780 6 GB
AMD Radeon 660M
Radeon 660M

Comparisons with similar GPUs

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.4 16 votes

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3.6 324 votes

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Questions & comments

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