Seagate Momentus XT 2nd Generation Hybrid Solid State Drive?

Velociraptor ftw \m/

But anyway, the momentus just uses the built in flash memory for caching. It will give you better boot/shut down times and will speed up your overall experience. It's just that you cant use that SSD bit of it. I would say buy it if prices drop. It is definitely worth it if you are using it as a stand alone OS and mass storage drive.

The hybrid version, mixing those 2 technologies limits the SSD power to the physical movement of the disks of the older type of HDD.

The hybrid HDD is more reliable than the old HDD one, but still breakable at light/power switches off (when the power goes off, or due to some PC error you gotta pull the plug/press the force restart button), and still has all the failures the old HDD have. The reader arms are still mechanic and move arround until breaking, unlike a SSD one.
The "downside" at SSD, except the price, that thing of a software limit of reads is a "story", because I never seen a CPU or RAM dieing out for working for too long time. Maybe there is such limit, but not in the first 5 years, as long as the warranty holds.

I have a 250 GB Samsung 840 Pro SSD in my Computer, as space, it is all I need to play every game I want at once (as in having them installed at once). I have an external 2 TB storage (images/SS, videos, downloaded stuff, ISOs, etc), classy and cheap model for storage, having it permanently connected to the PC, it's like having a hybrid, just that the Fast Boot and EVERYTHING the PC does is on purely SSD capacities and speed. When I need something new or that I haven't used in a long time, I take it from the external HDD, which looks just like an internal one.
There are no problems in putting a SSD and HDD inside the PC, just that I didn't want to buy an internal HDD when having this.
Now, I wonder if you can mix the SSD with this Hybrid HDD, because if the slower one is supposed to cache the OS files, that will be wrong.

The SSD has 5 times more writing and reading speed than the 2nd generation hybrid model (a cheaper 256 GB Pro SSD model like mine has a Sequential [not random] writing speed up to 520 MBits/second and 540 MBits/second sequential reading), and not limited to that little cache where half of those 8 Gb are filled with the OS system (because you know how much the main OS files and linked programs that load at the windows start can weight), and he says how the boot files are still not 100 % loaded in the cache. It is just faster by adding a bit of SSD tech, but not the same as pure SSD.

So in the end:
The hybrid one is indeed cheaper counting how many GBytes it has, it's what you need if you want big size and feel a bit of the SSD power, but if you want performance and Real reliability, and got the money, the SSD one is worth it.

For SSD users, CCleaner is even better

The description in the 3rd video, of that guy, he didn't lie. But he only shown the good parts of this hybrid model ,and not the bad ones.

He made it look awesome, but it's still 5 times slower than a real SSD, but also, 5 times cheaper ( per Gigabyte) ?
And it can still break as an old HDD one, for having mechanical parts, metals that move so much end up broken, and worse if the power goes off, unplugged or such.

Even the boot is slower as he said how not 100 % of the Operative System (windows) files are on the SSD part, so some still have to load from the HDD part. And for the browser, that's not included in the boot...

You say that the only issue was when starting the browser, but a faster HDD/SSD also means faster installing games, activating CF, copying stuff, even playing games is faster, the loading screens, etc.
Anyway, the old HDD still do their job If it's a desktop/table PC, you won't have issues with it getting broken (it usually brokes fast on laptops for being turned and moved while working).

What Vishu said, velociraptor is that very fast dinosaur, and FTW = For The Win, as in, "this is the fastest HDD" though that's not true