Where are the full 16/16/16x PCI-E 3.0 Motherboards?

[chicofehr]

I am just curious why motherboard manufacturers can't seem to make motherboards that have more then 2 full 16X PCI-E lanes. Is it more to do with the CPU or chip set leaving the motherboard makers with no way to make it. This is more a question out of curiosity then anything as I guess most people never go past 2 GPUs anyway.

 

[baddad]

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131802
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131808
yes CPU or chip set

 

[xtreme5]

because x8/x8 provides almost the same 99-98% peroformance as compared to x16/x16 interface , and adding more than two gpu's is totally waste it is useless.

 

[baddad]

, and adding more than two gpu's is totally waste it is useless.

Saying that it's a waste and useless makes me think you know little about using more than one GPU.

 

[chicofehr]

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131802
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131808
yes CPU or chip set

I guess I should have set view settings to "highest to lowest price" to see these LOL. I guess you have to get into the arm and leg prices to get more then 2x16x PCI-E I guess I'll be happy with just 2 for now.

 

[jaquith]

You have (2) choices, native SB-E** and X79/LGA 2011 MOBO's which offers 32-PCIe 3.0 lanes to the GPU's <or> Z77/LGA 1155 with an IB CPU and MOBO's equipped with a PLX Chipset. The caveat to LGA 1155 IB CPU's is they only offer 16-PCIe 3.0 lanes natively to the GPU's and add-on chipsets and a very small amount of latency.

The only example where bandwidth comes into play is with 4-WAY SLI/CF and very high resolutions (multiple monitors) with high AA.

Examples of Z77/LGA 1155 with PLX:
$450 ASUS P8Z77-V PREMIUM - http://www.newegg.com/Product/Product.aspx?Item=N82E16813131850
$400 ASUS Maximus V EXTREME - http://www.newegg.com/Product/Product.aspx?Item=N82E16813131858
$360 ASRock Z77 Extreme9 - http://www.newegg.com/Product/Product.aspx?Item=N82E16813157322
$349 ASUS P8Z77 WS - http://www.newegg.com/Product/Product.aspx?Item=N82E16813131822
$349 EVGA Z77 FTW - http://www.newegg.com/Product/Product.aspx?Item=N82E16813188120
$290 GIGABYTE G1.Sniper 3 - http://www.newegg.com/Product/Product.aspx?Item=N82E16813128552

** On nVidia GTX 600 series the SB-E requires a registry modification, AMD GPU's run @ PCIe 3.0 without issue; see - http://nvidia.custhelp.com/app/answers/detail/a_id/3135/session/L3RpbWUvMTM0MDIyMzU2OC9zaWQvaDEzbE45X2s=

 

[chicofehr]

You have (2) choices, native SB-E** and X79/LGA 2011 MOBO's which offers 32-PCIe 3.0 lanes to the GPU's <or> Z77/LGA 1155 with an IB CPU and MOBO's equipped with a PLX Chipset. The caveat to LGA 1155 IB CPU's is they only offer 16-PCIe 3.0 lanes natively to the GPU's and add-on chipsets and a very small amount of latency.

The only example where bandwidth comes into play is with 4-WAY SLI/CF and very high resolutions (multiple monitors) with high AA.

Examples of Z77/LGA 1155 with PLX:
$450 ASUS P8Z77-V PREMIUM - http://www.newegg.com/Product/Product.aspx?Item=N82E16813131850
$400 ASUS Maximus V EXTREME - http://www.newegg.com/Product/Product.aspx?Item=N82E16813131858
$360 ASRock Z77 Extreme9 - http://www.newegg.com/Product/Product.aspx?Item=N82E16813157322
$349 ASUS P8Z77 WS - http://www.newegg.com/Product/Product.aspx?Item=N82E16813131822
$349 EVGA Z77 FTW - http://www.newegg.com/Product/Product.aspx?Item=N82E16813188120
$290 GIGABYTE G1.Sniper 3 - http://www.newegg.com/Product/Product.aspx?Item=N82E16813128552

** On nVidia GTX 600 series the SB-E requires a registry modification, AMD GPU's run @ PCIe 3.0 without issue; see - http://nvidia.custhelp.com/app/answers/detail/a_id/3135/session/L3RpbWUvMTM0MDIyMzU2OC9zaWQvaDEzbE45X2s=

Thanks. I didn't know that there were that many. Having 3 or 4 full X16 would be great for 3D rendering with CUDA and works good with 2560x1600 monitor with everything maxed when gaming. I'll have to save for a bit it looks like.

 

[jaquith]

Yep x16/x16 PCIe 3.0 isn't cheap.