GeForce GTX 660 Rev. 2 vs GTX 660M Mac Edition

Primary details

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

Place in the ranking970not rated
Place by popularitynot in top-100not in top-100
ArchitectureKepler (2012−2018)Kepler (2012−2018)
GPU code nameGK107GK104
Market segmentDesktopDesktop
Release date1 April 2013 (11 years ago)13 September 2014 (10 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 cores384960
Core clock speed950 MHz980 MHz
Boost clock speedno data1032 MHz
Number of transistors1,270 million3,540 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)50 Watt140 Watt
Texture fill rate30.4082.56
Floating-point processing power0.7296 gflops1.981 gflops
ROPs1624
TMUs3280

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).

InterfaceMXM-B (3.0)PCIe 3.0 x16
Lengthno data241 mm
WidthMXM Module2-slot
Supplementary power connectorsNone1x 6-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 typeGDDR5GDDR5
Maximum RAM amount512 MB2 GB
Memory bus width128 Bit192 Bit
Memory clock speed5000 MHz6008 MHz
Memory bandwidth80 GB/s144.2 GB/s

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 outputs2x DVI, 1x HDMI, 1x DisplayPort
HDMI-+

API compatibility

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

DirectX12 (11_0)12 (11_0)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.21.2
Vulkan1.1.1261.1.126
CUDA3.03.0

Pros & cons summary


Recency 1 April 2013 13 September 2014
Maximum RAM amount 512 MB 2 GB
Power consumption (TDP) 50 Watt 140 Watt

GTX 660M Mac Edition has 180% lower power consumption.

GTX 660 Rev. 2, on the other hand, has an age advantage of 1 year, and a 300% higher maximum VRAM amount.

We couldn't decide between GeForce GTX 660M Mac Edition and GeForce GTX 660 Rev. 2. 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.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


NVIDIA GeForce GTX 660M Mac Edition
GeForce GTX 660M Mac Edition
NVIDIA GeForce GTX 660 Rev. 2
GeForce GTX 660 Rev. 2

Comparisons with similar GPUs

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

Community ratings

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


3 22 votes

Rate GeForce GTX 660M Mac Edition on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.5 49 votes

Rate GeForce GTX 660 Rev. 2 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.