[SOLVED] Game stuttering on high end pc need help

Jan 10, 2020
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Hey guys about a year ago i built a new pc cause my old one was a disaster it has
. i5 8600k with rtx 2070
.16 gb ddr4 3000Mhz
.powered by a psu of 650
Now ive been playing games such as destiny 2, anthem, black ops 3, mortal kombat 11, sekiro shadows die twice, far cry new dawn and rage 2 just to name a few withought any weird stutters or glitching.
But recently i bought forza horizon 3 and gta 5 and both games experience stuttering whilst the stutter happens the cpu jumps up to the 90s and loss of frames then plays smooth for about a minute then happens again could anyone kinda point me to the right direction im feeling sorta clueless

Thanks in advance to whoever can help
 
Solution
He is talking about 90% usage on the CPU not thermals,since the 2070 is quite a strong card his CPU gets maxed out.

GTA V loading times
*Do not try this at home,since rockstar is known to ban people for anything and tempering with the game threads definitely is ban worthy.

The game has its main thread running at a high priority which ** forces windows to cut off secondary tasks until the main task finishes...since this is a game though the main task doesn't finish until you quit the game and since the main thread needs the info from the secondary tasks to continue you get all kinds of issues from longer loading times to missing textures to stutters or slow downs.

*Instead lowering the FPS with a FPS limiter (same as a...
He is talking about 90% usage on the CPU not thermals,since the 2070 is quite a strong card his CPU gets maxed out.

GTA V loading times
*Do not try this at home,since rockstar is known to ban people for anything and tempering with the game threads definitely is ban worthy.

The game has its main thread running at a high priority which ** forces windows to cut off secondary tasks until the main task finishes...since this is a game though the main task doesn't finish until you quit the game and since the main thread needs the info from the secondary tasks to continue you get all kinds of issues from longer loading times to missing textures to stutters or slow downs.

*Instead lowering the FPS with a FPS limiter (same as a weaker GPU would do naturally) will cause the main thread to pause more often since it won't have to keep up with the GPU giving you the same result.

**
If a higher-priority thread becomes available to run, the system ceases to execute the lower-priority thread (without allowing it to finish using its time slice) and assigns a full time slice to the higher-priority thread.

Same for forza,all the forza games have the same issue.
On a dual core the problem is so extreme that the loading takes forever while GTA V manages to get into the game at some point.
Forza on a celeron
 
Solution