GeForce GTX 660 Ti vs GeForce GTX 670MX SLI

If you are going to buy a new graphics card and are choosing between GeForce GTX 660 Ti and GeForce GTX 670MX SLI, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 660 Ti stacks up against GeForce GTX 670MX SLI, check out specs charts below.

GeForce GTX 670MX SLI is a Laptop Graphics Card

Note: GeForce GTX 670MX SLI is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GTX 670MX SLI here:

Main Specs

  GeForce GTX 660 Ti GeForce GTX 670MX SLI
Power consumption (TDP) 150 Watt 150 Watt
Interface PCIe 3.0 x16
Supplementary power connectors Two 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort
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  • Both graphics cards have the same power consumption of 150 Watt.
  • GeForce GTX 660 Ti is used in Desktops, and GeForce GTX 670MX SLI - in Laptops.
  • GeForce GTX 660 Ti and GeForce GTX 670MX SLI are build with Kepler architecture.
  • Core clock speed of GeForce GTX 660 Ti is 315 MHz higher, than GeForce GTX 670MX SLI.
  • GeForce GTX 660 Ti and GeForce GTX 670MX SLI are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 670MX SLI is 2794 MHz higher, than GeForce GTX 660 Ti.

Game benchmarks

high / 1080p 21−24 21−24
ultra / 1080p 12−14 14−16
QHD / 1440p 8−9 8−9
4K / 2160p 5−6 5−6
low / 720p 40−45 40−45
medium / 1080p 27−30 27−30
GeForce GTX 660 Ti and GeForce GTX 670MX SLI have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  GeForce GTX 660 Ti GeForce GTX 670MX SLI
Architecture Kepler Kepler
Code name GK104 N13E-GR
Type Desktop Laptop
Release date 16 August 2012 1 October 2012
Pipelines 1344 1920
Core clock speed 915 MHz 600 MHz
Boost Clock 980 MHz
Transistor count 3,540 million 5080 Million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 102.5 billion/sec
Floating-point performance 2,459.5 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 2x 192 Bit
Memory clock speed 6.0 GB/s 2800 MHz
Memory bandwidth 144.2 GB/s
Shared memory - -
DirectX 12 (11_0) DirectX 11, Shader 5.1
Shader Model 5.1
OpenGL 4.3
OpenCL 1.2
Vulkan 1.1.126
CUDA + +
CUDA cores 1344
Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options + +
Multi monitor support 4 displays
HDMI +
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
3D Gaming +
3D Vision +
Bitcoin / BTC (SHA256) 99 Mh/s
Laptop size large
Optimus +
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