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GeForce 9800GT not using shared memory


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#1 NuckenFutz

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Posted 06 October 2010 - 04:41 AM

I have a GeForce 9800GT 512MB and I did have a ATI Radeon 4550 512MB which used all the shared memory it could but my 9800 won't use any of it for some reason is there a setting I have to turn on or something Oblivion I noticed ran at pretty low FPS when there were like 5 NPC's on the screen sooo... oh and I have 3GB's of RAM 2 1GB chips and 2 512MB chips

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#2 the_patriot11

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Posted 06 October 2010 - 09:56 PM

Im assuming by shared memory you mean having the card use some of the system memory. Dedicated cards by definition do not share memory with the system Im assumung your 4550 was an integrated card, but if not I dont know how it was using shared memory, unless it was in a hybrid crossfire solution, but under normal operating circumstances a dedicated graphics card will use its own memory for its graphics, and not use the system so the system memory can be used for other things. As far as low frame rates, what game(s) are we talking about?

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#3 DaChew

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Posted 07 October 2010 - 11:14 AM

Some lower priced cards have a smaller amount of memory and share system memory.

http://www.newegg.com/Product/Product.aspx...N82E16814125337

Memory Size Supporting up to 512MB(128MB onboard)


I couldn't find any such setup with the 9800

http://www.newegg.com/Product/ProductList....amp;PageSize=20

Edited by DaChew, 07 October 2010 - 11:18 AM.

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#4 the_patriot11

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Posted 07 October 2010 - 12:14 PM

Aaaah ok thankyou for the correction, DaChew, I didnt realize that, I learned something new today however, I dont believe the 9800 is one of these cards. :D

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

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#5 DaChew

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Posted 07 October 2010 - 12:45 PM

I remember when the first hybrid cards came out a couple of years ago, with the pci-e bus and faster system bus and ddr2 system memory, the assumption was that dedicated memory was not that much faster than shared. The option was only paired with the cheaper cards and chipsets, not sure how popular it remains?

I did find a nforce one?

http://www.newegg.com/Product/Product.aspx...N82E16814125336
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#6 NuckenFutz

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Posted 07 October 2010 - 10:23 PM

Sorry I haven't replyed in a while but the 4550 was not an integrated card. And are you saying that the 9800 is not capable of using shared memory? If so well....that kinda sucks =o

#7 the_patriot11

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Posted 07 October 2010 - 11:31 PM

ya, like dachew says, it seems to only be available on certain low end cards. Im surprised your 4550 has it, my gigabyte 4550 doesnt even support it, its not very common (which is why I didnt even realize you could until DaChew corrected me) but from my research, high end cards like the 9800 does not support that feature, mainly because its not really needed, and in many computers these days the memory in a high end video card is faster then your system memory, so using shared memory would likely just slow the card down.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

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#8 Platypus

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Posted 08 October 2010 - 04:15 AM

ATI's shared memory technology is called HyperMemory, and nVidia's equivalent is TurboCache.

http://www.tomshardware.com/news/ati-takes...memory,222.html

http://en.wikipedia.org/wiki/TurboCache

The 9800GT doesn't support TurboCache.

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#9 NuckenFutz

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Posted 08 October 2010 - 08:12 AM

Thanks guys I guess I will have to find another reason why my PC lags on oblivion now =/ but thanks for helpin atleast now I know it wont use any of my memory so i can stop worrying about it

#10 DaChew

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Posted 08 October 2010 - 08:48 AM

http://en.wikipedia.org/wiki/The_Elder_Scrolls_IV:_Oblivion

Lists system requirements that are quite lame?
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#11 the_patriot11

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Posted 09 October 2010 - 06:24 PM

Perhaps a driver issue? try uninstalling and reinstalling them. Also, what are your other system specs?

picard5.jpg

 

Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

If I don't reply within 24 hours of your reply, feel free to send me a pm.





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