DEWALT DWS779 Vs DWS780 Sliding Compound Miter Saw

If you are into carpentry or DIY projects involving wood, then you should find the use of a miter saw being important.

Miter saws help a lot when handling different complex designs to end up with the right design once the project is complete. However, not all miter saws are created the same.

Today, we want to focus on two closely related miter saws in the market. The two are the DeWalt DWS780 and the DeWalt DWS779 units.

These two stand out for being high quality, versatile, and good value for money. However, how do they differ from each other? Find out more below.

Quick Summary

A DIYer will find the DeWalt DWS779 unit being enough for various projects he has to handle. Considering it has a strong motor and cutting capacity other models cannot deliver, then it is good for versatility too.

For someone who is a professional contractor and needs the best tool, then the DeWalt DWS780 model is the right choice. It does have the same power as the DWS779, but it also has the XPS cutline light for faster and accurate cuts.

The Comparison

DeWalt DWS780 Sliding Compound Miter Saw


Having a miter saw can go a long way to help with working on wood projects. The DeWalt DWS780 is one of the top options in the market and here is why.

The gearbox and motor

For many contractors, these two are important features that any miter saw should have. This is because it will help them handle their projects better than before. This unit has an innovative gearbox and a belt drive design.

These two working together will boost the overall cutting capability of a miter saw. You will also find that the unit lasts for longer without requiring any major repairs.

Well, the motor is also powerful. Being a 15-amp motor with a speed up to 3,800RPM, it is good enough for handling various cutting applications.

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Also, the motor is highly durable to keep working on various projects without major overhauls.


As part of making it easier to use, we find that it comes with an integrated XPS integrated cross-cut positioning system.

This system provides you with an adjustment-free cut line indication. You would see the cut line better and perform accurate cuts.

It also has an exclusive back fence design. This allows for guiding the workpiece better than before. You will also get a better cutting capacity with such a design.

The model does come with a super-efficient dust collection system. This system will help capture up to 75% of the generated dust. You will now have a cleaner workpiece that works great just as you would want.


Cutting capacity

Just like any other type of saw, the cutting capacity can determine how much performance you get out of a miter saw. For this one, it has a cutting capacity of 2 by 16 at 90 degrees and 2 by 12 at 45 degrees.

Yes, the model can bevel too. With its bevel capacity, it should live up to the needs of many woodworkers in the market.

Ultimate durability

This unit does come with rugged guards all meant to boost the durability of the model. Also, it comes with precision-machined castings, a strong fence, and so much more.

There is no doubt you would be using it for years without worrying about it breaking down easily.

What We Like

  • It is easy to use
  • The model is highly versatile
  • The powerful motor drives the blade with ease

What We Don’t Like

  • It is heavy

The Solution: For what it is, the weight would be slightly higher. Nevertheless, it has many other positive features that make it ideal for your woodworking projects.

DeWalt DWS779 Sliding Compound Miter Saw

If you are looking to save a bit of money then the DeWalt DWS779 model can be a nice alternative to the DWS789 model. It also has some of the best features that make it good for various projects. Let us look at them below.

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If you are in the market for a miter saw, always look at its general power output. This one comes with a 15amp motor which promises to deliver up to 3,800RPM. This is good generally to help with improving the cutting capability of the miter saw.

Coming from DeWalt, we can expect that the motor would be good in terms of power output and durability. Even if you use the miter saw for extended sessions, you will not find it getting hot. It is a nice feature to make the unit great in performance.


The cutting capacity

The cutting capacity of the DWS779 is the same as that of the DWS780 unit. You can cut up to 2×16 while at 90 degrees or 2×12 lumber at 45 degrees. Take note that the maximum cutting thickness is 6.75 inches.

This is going to be an ideal tool for you to enjoy using. There is no doubt you would be comfortable using it on various wood projects at a site.

Clear cutline

Whenever cutting through wood, the sawdust can be quite the menace. However, this one comes with an efficient dust collection system. It is able to remove over 75% of the generated dust.

The result is that you end up with a clear-cut line all the time for accurate cuts. Also, it will limit the amount of dust spreading in the whole workshop. You will always have a clean workspace too.


There is no doubt that the safety of a miter saw will also be appealing. It does come with a transparent blade guard. This will allow you to supervise and control your cuts all the time.

Some might take off the blade guard as a way of improving productivity, however, it is not worth the risk.

What We Like

  • It is an affordable unit
  • Many find it easy to use
  • It is highly accurate

What We Don’t Like

  • Dust collection bag size could be better

The Solution: The bag might need emptying more often, but it is not too much that it becomes a deal-breaker. You will still end up with a top-quality product whenever you buy it.

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Which is Better?

As part of the comparison, we have to look at the similarities too. You will notice that these two miter saws both have a 15-amp motor that can deliver 3,800RPM.

Such speed is good for fast cuts all the time. The two also have the same cutting capacity of 6.75 inches vertically.

A few differences are what make the DeWalt DWS780 better between the two. We find it having the XPS cutline light to improve the accuracy of the tool. For any power tool, having better accuracy is always important to ensure the best productivity.

Final Thoughts

The DeWalt DWS779 is for someone who is on a budget and still needs a performance miter saw. Even if it lacks the XPS cutline light, it should be able to accomplish multiple cuts with ease.

Those who are experienced with miter saws might not find the XPS light as a mandatory feature. Well, if you have no worries about the budget, then the DWS780 is a nice choice too.

It has many other subtle differences that make it the best between the two.