Oops, I missed the wattage rating. It's there if I had just looked harder for it.
OK, let me start over.
I have owned and used table saws with 8" - 12" blade sizes with motor sizes ranging from 1 - 5 hp, and for most cabinet and furniture making work I prefer the 10" blade size or larger with a 3 hp or larger motor. Go less than that and you will likely wish that you had bought the bigger saw when doing some of your work. If the blade is less than 10" there will be some pieces that can't be cut all the way through at 45 degrees in one pass. Less than 3 hp and there will be problems cutting some of the hardwoods, especially at a 45 degree angle. You can make do with less saw in a home shop, but it shouldn't be considered if this saw is going into a serious hobby or professional shop.
The blade and motor size are only part of the system. You also need to make sure that the rip fence is built solid, is easy to move and lock, and is accurate. This will be true no matter what size saw you buy. A T-square type fence that rides and locks in place on a front rail has proven to be best for me. I have a Delta Unifence on my home saw and the one at work uses a Biesmeyer fence. Both are the T-square type fences. They both are very accurate, but I prefer my Unifence. It just feels better to me. I guess it's much like which car you like best. So choose a saw with a fence that is easy to use and is accurate. Probably the only way to decide is to try the saw with the fence that you think you like before you buy it.
You said that you liked the granite top saws. There are goods and bads about them. On a granite top saw the top won't rust and it's very flat, but they can break if something falls on them or they receive rough handling in shipment or moves. You also can't use any magnetically held featherboards or fixtures on them. Mounting a stock feeder or other special tool or fixture to the top will be extremely difficult.
A cast iron top will rust if not kept waxed and cared for. It will remain flat if it was properly machined when new. It can also break if something falls on it or it is rough handled in shipment, but it will resist more of this than the granite top saw. You can use magnetically held featherboards on it. You can easily drill and thread holes in it to mount special tools and jigs such as a stock feeder. You will need to seriously consider these goods and bads for each before you buy.
The Charnwood has an 1100 watt motor at 220 volts, which equals 1.5 hp. It uses an 8" blade. I think this saw is a bit too small for a serious hobbyist and way too small for a professional shop.
The SIP 01332 has a 2240 watt motor at 220 volts, which equals 3 hp. It uses a 10" blade. This appears to be a very good saw with the right size blade and motor for a small professional shop or a serious home woodworking shop. It seems to be very close in size to a Delta Unisaw.
I prefer a 10" or larger blade on a table saw if it will be used for serious furniture or cabinet making. My home shop has a 3 hp 10" Delta Unisaw, and where I work has a Delta 12" 5 hp Delta RT40 saw. Both are great saws that can do everything that I have ever asked of them. My Unisaw is quite likely the last table saw that I will ever buy. It should outlast me.
I hope that I have helped you some this time. Sorry. I'll go back into my little corner now.