Why is a PC many times more productive than laptops (ultrabooks) with the same characteristics?

Question

laptops

I work as a layout designer - I cut layouts in Photoshop, work with layers: copy a layer, create a layer, paste a layer, save a layer, etc.
I'm working on a 2012 laptop with a dual-core AMD 1650 MHz processor and 4 GB of RAM and an SSD drive.
Photoshop works slowly, thinks for a second or two or three before each operation.
Today I tried to work on a stationary PC, which I bought already in 2008 - a dual-core AMD 1800 MHz processor and 2 GB of RAM and an HDD disk.
Everything just flies! No delay! Although the characteristics are lower than those of the laptop.
Tell me why is this happening? Should I buy a new ultrabook with an Intel Core i7 processor for instant work without delay. Or ultrabooks are all such brakes?

Answer 1

In laptops, everything is sharpened for energy saving, but in a PC there is no such restriction. Provided that the CPU/memory/chipset of the PC and the laptop were released at the same time, the PC will always outperform the laptop. Taking an ultrabook does not make sense at all for your tasks, because in them all the processors have the U index in the model number. Here's what Wiki says about this:
U - Ultra low voltage (TDP - below 15 W);
L - Low voltage (TDP - from 15 to 25 W);
T - standard mobile (TDP - from 25 to 55 W);
E - standard dEsktop (TDP - from 55 to 75 W);
X - eXtreme (TDP - above 75W).
Accordingly, the lower the TDP, the more the performance is cut in comparison with the usual processors from Intel.
If you already take a laptop, then on the I7 process only without the U index.

Answer 2

/me remembered a classmate who said that the PC has a video card, but it's definitely not for video

Answer 3

The computer has better cooling. They have a more powerful video card. Less dense layout. More reliable tyre.

Answer 4

In addition to differences in mobile/desktop processors, ultrabooks have poor cooling conditions due to their layout. I know, for example, that MacOS in macbooks, when heated, begins to give a lot of processor time to an "empty" very high-priority process. So that the poppy naturally does not melt.

Answer 5

In addition to the tips above, I still advise you to play around with the settings of Photoshop itself:
1. remove the cache from the system disk, check its size
2. reduce the history of operations as comfortably as possible
3. increase the memory available to Photoshop to the maximum
4. check whether Photoshop can and does use the GPU
5. Turn off copying to the clipboard
6. while working, watch the efficiency indicator - it shows when Photoshop starts to slow down -> change the parameters
Perhaps on the desktop you or someone else has already optimized Photoshop and it works faster.

Answer 6

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