F5F Stay Refreshed Software PC Gaming My PC isn't utilizing over 4 GB of RAM while playing games.

My PC isn't utilizing over 4 GB of RAM while playing games.

My PC isn't utilizing over 4 GB of RAM while playing games.

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cheleen
Member
116
10-21-2025, 12:03 PM
#1
I own 16 GBs of DDR4 RAM, and when I play GTA V for instance, I notice my computer is only utilizing around 3-3.5 gigs.
I believe this explains why my fps drops to 40 and the map doesn’t load quickly enough. With an i5-7500 and a GTX 1060 6 GB, it should handle GTA at high settings smoothly at 60+ fps, and that’s what has happened before.
I’ve checked RAM usage using Resource Monitor and RAMMap—same results. It’s not because of cached memory; the game uses roughly the same amount even with about 8 gigs free. I also tried Rainbow6, which uses no more than 3 gigs, but it runs well.
Anyone know about this problem? Thanks for your help.
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cheleen
10-21-2025, 12:03 PM #1

I own 16 GBs of DDR4 RAM, and when I play GTA V for instance, I notice my computer is only utilizing around 3-3.5 gigs.
I believe this explains why my fps drops to 40 and the map doesn’t load quickly enough. With an i5-7500 and a GTX 1060 6 GB, it should handle GTA at high settings smoothly at 60+ fps, and that’s what has happened before.
I’ve checked RAM usage using Resource Monitor and RAMMap—same results. It’s not because of cached memory; the game uses roughly the same amount even with about 8 gigs free. I also tried Rainbow6, which uses no more than 3 gigs, but it runs well.
Anyone know about this problem? Thanks for your help.

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steel51
Member
205
10-21-2025, 12:03 PM
#2
I suspect that boosting physical memory might lead to higher memory consumption, mainly due to larger page tables needing more space. Additionally, each process typically has its own page table, which adds complexity.
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steel51
10-21-2025, 12:03 PM #2

I suspect that boosting physical memory might lead to higher memory consumption, mainly due to larger page tables needing more space. Additionally, each process typically has its own page table, which adds complexity.

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JosephGamez
Member
141
10-21-2025, 12:03 PM
#3
What operating system are you running? A 32-bit OS typically requires no more than 3.8GB of RAM.
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JosephGamez
10-21-2025, 12:03 PM #3

What operating system are you running? A 32-bit OS typically requires no more than 3.8GB of RAM.

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Herostare
Member
77
10-21-2025, 12:03 PM
#4
GTAV and I'm assuming "Rainbow6" refers to Rainbow Six Siege, needing a 64-bit operating system to function. But if the OS check was flexible and the apps are 32-bit (we can't confirm GTAV yet), they still have a memory cap of 4GB, or possibly 2GB if the flag wasn't properly set during compilation. It would be interesting to observe the Task Manager's Performance section when these games run for some time.
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Herostare
10-21-2025, 12:03 PM #4

GTAV and I'm assuming "Rainbow6" refers to Rainbow Six Siege, needing a 64-bit operating system to function. But if the OS check was flexible and the apps are 32-bit (we can't confirm GTAV yet), they still have a memory cap of 4GB, or possibly 2GB if the flag wasn't properly set during compilation. It would be interesting to observe the Task Manager's Performance section when these games run for some time.

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FancyMushroom
Member
157
10-21-2025, 12:03 PM
#5
Hello, thank you for your message.
I'm on a 64-bit Windows 10 system with more than 4GB of RAM available overall, and the games themselves aren't consuming excessive resources.
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FancyMushroom
10-21-2025, 12:03 PM #5

Hello, thank you for your message.
I'm on a 64-bit Windows 10 system with more than 4GB of RAM available overall, and the games themselves aren't consuming excessive resources.

1
1winnie5
Member
62
10-21-2025, 12:03 PM
#6
Do you have a method to verify the application's bit size? If you play the games for some time, it displays usage around 3-4gbs and other metrics like 8 more (possibly cached memory). I can perform a test later and take a screenshot if needed.
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1winnie5
10-21-2025, 12:03 PM #6

Do you have a method to verify the application's bit size? If you play the games for some time, it displays usage around 3-4gbs and other metrics like 8 more (possibly cached memory). I can perform a test later and take a screenshot if needed.

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dubdub112
Member
202
10-21-2025, 12:03 PM
#7
Win32 programs are still restricted by the 4GB address space limit, even when running on a 64-bit operating system. GTAV is definitely 64-bit, but it seems the game isn't extremely memory-heavy. The problem might stem from a slow hard drive or graphics settings that exceed the GPU's capabilities (possibly using excessive VRAM, which would hurt performance).
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dubdub112
10-21-2025, 12:03 PM #7

Win32 programs are still restricted by the 4GB address space limit, even when running on a 64-bit operating system. GTAV is definitely 64-bit, but it seems the game isn't extremely memory-heavy. The problem might stem from a slow hard drive or graphics settings that exceed the GPU's capabilities (possibly using excessive VRAM, which would hurt performance).

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AlaskaMeh
Member
60
10-21-2025, 12:03 PM
#8
Thanks, actually the game works well these days but performance drops only occasionally (it was worse a few weeks back, possibly due to driver updates). I believe this might be related to RAM usage. By checking benchmarks on the same system with identical settings, I found that their PCs use 6-8gbs of RAM instead of the usual 3-4, and the VRAM usage is well below the 6gb limit shown in the game settings.
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AlaskaMeh
10-21-2025, 12:03 PM #8

Thanks, actually the game works well these days but performance drops only occasionally (it was worse a few weeks back, possibly due to driver updates). I believe this might be related to RAM usage. By checking benchmarks on the same system with identical settings, I found that their PCs use 6-8gbs of RAM instead of the usual 3-4, and the VRAM usage is well below the 6gb limit shown in the game settings.

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FatihTerim
Member
184
10-21-2025, 12:03 PM
#9
I suspect that boosting physical memory might actually lead to increased memory usage. Much of this is due to page tables growing larger when more RAM is present (to reflect the expanded space), and each process typically has its own page table. However, it’s unclear how simply adding 32GB of RAM would directly double the overall RAM consumption compared to what you observe.

I discovered this utility:
https://docs.microsoft.com/en-us/sysinte...oads/vmmap
Now I plan to use it for various tasks just to understand what’s happening.
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FatihTerim
10-21-2025, 12:03 PM #9

I suspect that boosting physical memory might actually lead to increased memory usage. Much of this is due to page tables growing larger when more RAM is present (to reflect the expanded space), and each process typically has its own page table. However, it’s unclear how simply adding 32GB of RAM would directly double the overall RAM consumption compared to what you observe.

I discovered this utility:
https://docs.microsoft.com/en-us/sysinte...oads/vmmap
Now I plan to use it for various tasks just to understand what’s happening.

S
sebasdoce
Member
245
10-21-2025, 12:03 PM
#10
If you have more memory, the clear result would be fewer page swaps. However, this wouldn't matter unless another component was consuming a lot of it.
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sebasdoce
10-21-2025, 12:03 PM #10

If you have more memory, the clear result would be fewer page swaps. However, this wouldn't matter unless another component was consuming a lot of it.