Can increasing dedicated memory risk overheating my Intel HD 620

Blaisem

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Jul 31, 2017
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I would like to game if possible, but cannot afford a new computer that offers a dedicated GPU. Unable to play Witcher 3 without stuttering frame rates, I looked for ways to improve my GPU's output. I went into my registry (Local Machine - > Software -> Intel), created a key titled GMM, then made a 32-bit DWORD that adjusts my dedicated memory. I simultaneously edited a user config file for the game that limited the memory my GPU used.

Currently I have the dedicated memory set at 1024 MB, and the game set to pull 1024 MB. The improvement was large, and the game runs passably now, but only just so. Two questions:

1. Am I risking overheating my Intel HD 620 by running it at 1024 MB? I downloaded MSI afterburner to try and measure a specific temperature, but it doesn't seem to detect my iGPU (just returns 0 everywhere except GPU usage).

2. Is it advisable to further increase the demand beyond 1024 MB to secure better-than-passable framerates? I have 1x8GB ram total and am only around 50% memory used while in game, and nowhere near 100% out of game, so allocating more shared memory to my iGPU doesn't seem like it would be an issue for me, as long as it were safe for the hardware.

Thank you!
 
Solution
No - you're not going to overheat the integrated graphics. It's still running at the same speed. You can't clock it at a higher rate. All you're doing is sharing more of your 8GB RAM to be used for graphics versus the OS and programs. Go ahead and increase it if you want.
No - you're not going to overheat the integrated graphics. It's still running at the same speed. You can't clock it at a higher rate. All you're doing is sharing more of your 8GB RAM to be used for graphics versus the OS and programs. Go ahead and increase it if you want.
 
Solution


Cool thanks man. Can I set it at an arbitrary value like 1500 MB, or would the next step up from 1024 be 2048? I notice for some reason everywhere I look the dedicated memory is always set to an exponential of 2.
 
Whatever you add will be no longer available for the system ram, so if you have 8gb of ram, dedicate no more than 2gb to graphics.

Also, integrated graphics loves fast ram, so if you can overclock your ram you should see some graphics performance increase.

You can also download Intel tuning utility and overclock the igpu.
https://downloadcenter.intel.com/download/24075/Intel-Extreme-Tuning-Utility-Intel-XTU-