SLI / CrossFire FAQs - Page 6
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Last response: in Graphics & Displays
jay7219
October 25, 2008 9:17:37 AM
imgonnalolu
October 25, 2008 1:55:31 PM
Related resources
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djthewizz
October 26, 2008 12:06:54 AM
chansman
October 31, 2008 10:19:43 AM
Max Lazer
November 12, 2008 11:29:05 PM
Sorry if this has been posted already, or if it should have been obvious, but I want to be absolutely sure.
I have a Radeon HD 4850 from VisionTech. Based on what the FAQ says, I could get another 4850 from another maker, so long as they have the same memory and clock speed.
Is there anything else I should keep an eye out for? Is it preferable to buy two of the exact same card?
I have a Radeon HD 4850 from VisionTech. Based on what the FAQ says, I could get another 4850 from another maker, so long as they have the same memory and clock speed.
Is there anything else I should keep an eye out for? Is it preferable to buy two of the exact same card?
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Reply to Max Lazer
Crazy-PC
November 14, 2008 5:15:48 AM
Crazy-PC
November 14, 2008 10:55:56 AM
Anonymous
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Graphics card
November 25, 2008 2:09:08 PM
Sneekysnake
November 25, 2008 10:19:30 PM
Maziar,
Awesome post, I thank you. It is great when those that know share with those of us that do not.
I am going to be building a new system, basically just upgrading MOBO/CPU, PSU and GPU.
It seems the links to the comparisons are for games that are the DoOM, Metal Gear, etc type of games.
Do you know if I would need to go to either Xfire or SLI on a MMORPG game like Everquest or WOW?
I really don't know how to compare that with the others.
From what I have read, since I normally play at about 1280 x 1024, my guess is that I really would not need that technology yet.
Thank you again.
Awesome post, I thank you. It is great when those that know share with those of us that do not.
I am going to be building a new system, basically just upgrading MOBO/CPU, PSU and GPU.
It seems the links to the comparisons are for games that are the DoOM, Metal Gear, etc type of games.
Do you know if I would need to go to either Xfire or SLI on a MMORPG game like Everquest or WOW?
I really don't know how to compare that with the others.
From what I have read, since I normally play at about 1280 x 1024, my guess is that I really would not need that technology yet.
Thank you again.
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Reply to Sneekysnake
Sneekysnake
November 26, 2008 2:07:32 PM
Maxiar,
Would one of these cards be good?
VisionTek 900241 Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card
BFG Tech BFGE98512GTXOCE GeForce 9800 GTX 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card
I know they are xfire and SLI ready, which I do not need right now for MMORPG but I was thinking that if in the future the games evolve?? Or is this just plain overkill and if so could you recommend a couple of decent cards? Right now I use a NVIDIA GeForce M440.
Again thanks.
Would one of these cards be good?
VisionTek 900241 Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card
BFG Tech BFGE98512GTXOCE GeForce 9800 GTX 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card
I know they are xfire and SLI ready, which I do not need right now for MMORPG but I was thinking that if in the future the games evolve?? Or is this just plain overkill and if so could you recommend a couple of decent cards? Right now I use a NVIDIA GeForce M440.
Again thanks.
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Reply to Sneekysnake
HD 4850 and 9800GTX doesnt have alof of difference with each other,but i recommend HD 4850 because it has a slight edge over its Nvidia's rival.
Don't get me wrong,i didn't say SLI/CrossFire is completely useless for resolutions like 1280x1024,i said they are more useful for higher resolutions.
And as i said some MMORPG games aren't much demanding like WOW,but other games like Oblivion are more demanding and take advantage of MultiGPU(But again for your resolution a good single card is fine
)
Don't get me wrong,i didn't say SLI/CrossFire is completely useless for resolutions like 1280x1024,i said they are more useful for higher resolutions.
And as i said some MMORPG games aren't much demanding like WOW,but other games like Oblivion are more demanding and take advantage of MultiGPU(But again for your resolution a good single card is fine
) -
Reply to Maziar
thepigeon
November 29, 2008 10:46:51 AM
hey! nice thread!
im lookin 2 upgrade my MoBo and Graphic card. i only want one card for now but wen i get the money ill buy a second!
im torn between CF with an ATI HD 4850 and SLI with a 9800gtx. any advice? (mobo choices is asus p5q pro CF or the cheapest SLI mobo with pc-8500 and fsb1333mhz lol)
im lookin 2 upgrade my MoBo and Graphic card. i only want one card for now but wen i get the money ill buy a second!
im torn between CF with an ATI HD 4850 and SLI with a 9800gtx. any advice? (mobo choices is asus p5q pro CF or the cheapest SLI mobo with pc-8500 and fsb1333mhz lol)
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Reply to thepigeon
meodowla
December 2, 2008 11:25:10 AM
Hello and welcome to the forums mate
Your motherboard is this :
http://www.asus.com/products.aspx?modelmenu=2&model=218...
It has only one PCI-E 2.0 slot,so it supports only one ATI card and supports Nvidi Hybrid SLI.
Your motherboard is this :
http://www.asus.com/products.aspx?modelmenu=2&model=218...
It has only one PCI-E 2.0 slot,so it supports only one ATI card and supports Nvidi Hybrid SLI.
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Reply to Maziar
meodowla
December 2, 2008 7:21:10 PM
Maziar said:
Hello and welcome to the forums mate
Your motherboard is this :
http://www.asus.com/products.aspx?modelmenu=2&model=218...
It has only one PCI-E 2.0 slot,so it supports only one ATI card and supports Nvidi Hybrid SLI.
Ya... its my motherboard... And i'm using ATi GPU on Nvidia chipset board(which support Hybrid SLi).
Is it possible for me to use Hybrid SLI or Crossfire with the IGP Nvidia 8300....
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Reply to meodowla
Hybrid SLI uses the onboard GPU to assist the dedicated one(or the other way around
).
It works the same as AMD's Hybrid Crossfire that allows the integrated HD3200 on 780G boards to run with another card like the 3450 and give a decent performance boost.
Nvidia's biggest advantage is with the right hardware and software the system can shut off the dedicated video card when not in use and rely only on the power saving onboard video card. Onboard is more then enough to surf around the net and stuff.
Nvidia
http://www.nvidia.com/object/hybrid_sli_desktop.html
Toms test when the 780G was released
http://www.tomshardware.com/reviews/amd-780g-chipset,17...
).It works the same as AMD's Hybrid Crossfire that allows the integrated HD3200 on 780G boards to run with another card like the 3450 and give a decent performance boost.
Nvidia's biggest advantage is with the right hardware and software the system can shut off the dedicated video card when not in use and rely only on the power saving onboard video card. Onboard is more then enough to surf around the net and stuff.
Nvidia
http://www.nvidia.com/object/hybrid_sli_desktop.html
Toms test when the 780G was released
http://www.tomshardware.com/reviews/amd-780g-chipset,17...
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Reply to nukemaster
meodowla
December 5, 2008 6:46:43 PM
meodowla
December 6, 2008 12:49:04 PM
Thats the problem.... 8300 can't be disabled while in Vista... in XP it does'nt appear...... I tried to disable it in BIOS.... Primary Video Adapter set to PCIE.... Onboard video adapter has two Options, Auto and Enable... so set to Auto.. Hybrid SLI also have Auto and Enable.... It also set to Auto... I've 4GB RAM... but in Vista it shows only 3.5GB... When Hybrid SLI enabled, RAM again reduces to 2.75GB..
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Reply to meodowla
Just leave it as it is, You only get 3.5 gigs of memory because your 48XX card is taking 512 megabytes of address space. XP 64(or Vista 64) would have solved that issue, but there is no problem with 3.5 gigs of ram.
You can disable the Nvidia one(in vista), but it should not make a difference.
Maziar - Under XP, at least if the board supports it(some do disable cards when another is inserted, but i doubt its the case here) you can use both, I have used ATI and NV cards together(XT1900 and 8800GTX on a 430 watt psu
I am brave) before and it worked. There is a hack to make both cards run under Vista, but i am not sure how stable it is.
You can disable the Nvidia one(in vista), but it should not make a difference.
Maziar - Under XP, at least if the board supports it(some do disable cards when another is inserted, but i doubt its the case here) you can use both, I have used ATI and NV cards together(XT1900 and 8800GTX on a 430 watt psu
I am brave) before and it worked. There is a hack to make both cards run under Vista, but i am not sure how stable it is. -
Reply to nukemaster
meodowla
December 7, 2008 6:44:09 PM
nukemaster said:
Just leave it as it is, You only get 3.5 gigs of memory because your 48XX card is taking 512 megabytes of address space. XP 64 would have solved that issue, but there is not problem with 3.5 gigs of ram.You can disable the Nvidia one(in vista), but it should not make a difference.
Maziar - Under XP, at least if the board supports it(some do disable cards when another is inserted, but i doubt its the case here) you can use both, I have used ATI and NV cards together(XT1900 and 8800GTX on a 430 watt psu
I am brave) before and it worked. There is a hack to make both cards run under Vista, but i am not sure how stable it is.Both the cards work together..??? THats COOL..
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Reply to meodowla
meodowla
December 8, 2008 3:30:43 PM
G-wiz
December 11, 2008 4:07:43 PM
meodowla
December 12, 2008 7:42:45 PM
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Reply to meodowla
The source engine used in HL 2 ran far better on ATI hardware at the time it is still slightly better on Ati hardware but the fps are pretty much cpu limited now anyway.
Assassins Creed used to run faster on ATI hardware until it was patched to remove the DX 10.1 advantage ATI had in that title.
Serious Sam 2 seemed to favor ATI hardware of its time.
Nvidia owns the performance crown for Crysis, ET: Quake wars as well as many OpenGL based games.
There are some times where Nvidia is the only way to go (Crysis) and others where ATI is better.
Both companies also leap frog in performance anyway.
But if you main game will be Crysis and games based on its engine, then you are better off getting Nvidia now.
There are some questionable things Nvidia has done too
http://www.anandtech.com/showdoc.aspx?i=3320&p=6
On top of that daily crashes/poor performance on some games under Vista64 that I would have blamed on MS if I had not tossed in an old ATI card to test.
I am no fanboy here, I like my 8800GTX allot(on hell of a card and way ahead of its time), but under Vista64 its a lost cause with even the latest driver still crashing some games to a black screen.
Assassins Creed used to run faster on ATI hardware until it was patched to remove the DX 10.1 advantage ATI had in that title.
Serious Sam 2 seemed to favor ATI hardware of its time.
Nvidia owns the performance crown for Crysis, ET: Quake wars as well as many OpenGL based games.
There are some times where Nvidia is the only way to go (Crysis) and others where ATI is better.
Both companies also leap frog in performance anyway.
But if you main game will be Crysis and games based on its engine, then you are better off getting Nvidia now.
There are some questionable things Nvidia has done too
http://www.anandtech.com/showdoc.aspx?i=3320&p=6
On top of that daily crashes/poor performance on some games under Vista64 that I would have blamed on MS if I had not tossed in an old ATI card to test.
I am no fanboy here, I like my 8800GTX allot(on hell of a card and way ahead of its time), but under Vista64 its a lost cause with even the latest driver still crashing some games to a black screen.
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Reply to nukemaster
websquad
December 15, 2008 8:55:34 PM
I have a Windows XP/Pro system, eVGA 780i motherboard, Q6600 processor, and 4GB RAM. In this is a nVidia GeForce 8800GT, 512MB, SLI display, driving a pair of 19" panels (1280x1024). 750W power supply.
Saturday I added a 22"W panel (1680x1050) and am driving it with an DVGA UV Plus UV16 USB display port adapter.
From the motherboard specs, it appears to have 1 x PCIe and 2 x PCI slots. It also says that all three PCIE GPU slots are 16x.
http://www.evga.com/products/pdf/132-CK-NF78-A1.pdf
Performance with the USB port thing sucks.
For the record, I don't do games. So a high frame rate is not an issue.
Can I add a non-SLI display adapter? Will the RAM in the new card reduce the amount of available RAM to my XP (32-bit environment) applications?
I'd like to minimize my cash outlay. Any suggestions?
Saturday I added a 22"W panel (1680x1050) and am driving it with an DVGA UV Plus UV16 USB display port adapter.
From the motherboard specs, it appears to have 1 x PCIe and 2 x PCI slots. It also says that all three PCIE GPU slots are 16x.
http://www.evga.com/products/pdf/132-CK-NF78-A1.pdf
Performance with the USB port thing sucks.
For the record, I don't do games. So a high frame rate is not an issue.
Can I add a non-SLI display adapter? Will the RAM in the new card reduce the amount of available RAM to my XP (32-bit environment) applications?
I'd like to minimize my cash outlay. Any suggestions?
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Reply to websquad
I see no reason why you can not just add some low end video card to the mix.
XP 32-bit can only address 4 gigs of total memory including your video memory and other devices with onboard memory.
So if you have 4 gigs(you do
) your 8800 would already bring you to ~3.5 add another card to the mix and your down to ~3.0-3.25. Since you do not game, get something with lower VRAM.
XP 32-bit can only address 4 gigs of total memory including your video memory and other devices with onboard memory.
So if you have 4 gigs(you do
) your 8800 would already bring you to ~3.5 add another card to the mix and your down to ~3.0-3.25. Since you do not game, get something with lower VRAM. -
Reply to nukemaster
meodowla
December 21, 2008 12:54:51 PM
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Reply to meodowla
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