The downsides would be:
- The lack of dedicated RAM on the graphics card,
- and you would have more active silicon on your CPU+GPU die, meaning the CPU might get hotter.
The upsides are bigger though:
- The card is older, the on die GPU's are more modern. They use a lot less power, which means less heat, less cooling and a lower electricity bill.
- You gain a free expansion slot on your motherboard
- The on die GPU is a lot faster. Benchmarks never tell the full story, but the on-die Intel GPU is roughtly 2-3x as fast according to this site
Is there a way to combine the graphics processing power of both the GPUs
Theoretically: Yes. In practice: nope.
In order to use both CPU's you would need to present the OS a virtual graphics card which known how to use both real chips. There have been some attempts to do that, but usually it is not worth it.
Should I remain on GeForce 210?
I would dump the old card unless you want to use it for PhysX.
Note that even used as PhysX card it may be old enough to actually yield slower results than not using it at all.
Update after lots of comments:
An idle temparature of
An idle temperature around 50°C with 40°C Ambient is not awful.
That is a delta of +10°C.
It is not great either. I have checked my own Skylake CPU's and idle temps for both of them are +6°C. One with the Intel stock cooler, the other with cheap aftermarket cooling since it did not ship with a cooler.
+10°C is still 50% worse than +6°C though. I asked people who live in hot parts of the world and they are stay well below your idle delta. It probably means that something is suboptimal with your cooling. Either the thermal paste has dried out, is not applied correctly, the cooler is mounted wrong, or the inside of you case does not probaly a proper airflow.
When you try to run games you start using the CPU more intensely and you got more heat from the build-in GPU. THat should have means that the chip got hotter. Fan might spin faster. However given the capabilities of you modern chip vs the old card I expect that you would get 2x to 3x better performace with the on-die GPU.
... Except that it got very hot. Hot enough to throttle itself, lowing game performance significantly. Combined with the already high differnce in idle temps I would:
- Check the case openings (including dust filters. Those being clogged might explain things).
- Check if you have multiple fans. IN case that yu do, which fan pushes air, which one pulls? How does the air flow through the case?
- Check and remount the heatsink with fresh thermal paste.
If all goes well cooling should be significantly improved. At idle the point might be moot, but when gaming the CPU should stay cool and performance should be significantly better with the on-die GPU.