Dell Optiplex 790 SFF i7 upgrade??!

Question

So I bought a new Dell Optiplex 790 SFF and I put my gt 1030 into it and with the i5-2400 it works pretty well in games, but I could get some more performance out of it by installing an I7. I am aware that they support I7 CPU's but I don't really know which model. If someone could tell me which model is compatible with a 790 SFF and are sure that it works because I don't want to spend money on something that isn't going to work. Also is it even worth it to upgrade  to the i7 over the i5 2400?

speedstep · Answer

EDIT 2400S

would be the recommended unit due to power supply being soo small.

You would actually get better performance for your money by getting a GT1030.

https://www.dell.com/en-us/work/shop/msi-gt-1030-2g-lp-oc-graphic-card-2-gb-gddr5-pcie-30-x16-low-profile-hdmi-displayport/apd/aa362018/graphic-video-cards

https://www.youtube.com/watch?v=2y32mBdZHJY

Nathanc11 · Answer

An i7 2400? i cant find any

bradthetechnut · Answer

'I7 2400' comes up in Google, but not eBay or Amazon.  'I7 2400T' didn't come up at all in Google. A compatible list of CPU's, or search by 'processor,' is in the Optiplex 790 Tech Guide.

bradthetechnut · Answer

Going from quad core to quad core doesn't always see much improvement.  From an I5 2400 to an I7 2600:  28% improvement according to game-debate translates to 1.28x faster, or 1.28x performance improvement.

user_173f85 · Answer

I used a i7 2600K in my Optiplex 790 and it works well (But mine is the Desktop not SFF)

I tried a 3rd Generation i5 3450 and it did NOT work.

Also I used 20Gb or DDR3 Ram even if the documentation said maximum of 16Gb

Hope that helps

Gosane

speedstep · Answer

The 65W  I7 is 2600S  SR00E https://www.amazon.com/Intel-i7-2600S-Quad-Core-Desktop-Processor/dp/B07W87Z6WJ/ CM8062300835604   BX80623I72600S https://ark.intel.com/content/www/us/en/ark/products/52215/intel-core-i7-2600s-processor-8m-cache-up-to-3-80-ghz.html The S versions are the low power versions. Intel® Core™ i7 2600 / 3.40GHz, 8M, 95WIntel® Core™ i5 2500 / 3.30GHz, 6M, 95WIntel® Core™ i5 2400 / 3.10GHz, 6M, 95W Intel® Core™ i7 2600S / 2.80GHz, 8M, 65WIntel® Core™ i5 2500S / 2.70GHz, 6M, 65WIntel® Core™ i5 2400S / 2.50GHz, 6M, 65W

Mateo34 · Answer

Hello Gosane,

how are you today, hopefully doing well.

In regards to your Rig, you have had success using the I7-2600K? Please let me know what modifications you have made, did you upgrade the power supply and or the Graphics card?

Thank you in advance,

Mateo

Dell optiplex lover · Answer

Hi! I think that intel core i5 2400 is a great CPU but if you want something more I would recommend intel core i7 2600k if you want something cheaper you can get i7 2600 or i7 2600s.

chocolatekarma · Answer

First off, don't take any power related advice from speedstep. They're as delusional as it comes, and completely obsessed with something they know nothing about.

I had a 790 SFF with an i7 2600 and a GTX 1050 Ti low profile, and ran that for over a year without any issue ever. The lower powered S versions of these chips are for the USFF.

Don't waste time or money on an i7 2600K, because you need a motherboard doesn't support overclocking at all. Get the non-K, not the 2600s either.

bradthetechnut · Answer

I second some of what chocolatekarma says.  Since Optiplex BIOS doesn't support OC, you won't notice any difference between the I7-2600 and the I7-2600k.  Base and turbo GHz is the same.

AnryP · Answer

hello, just for reference, can i put a 2600 in my (DT) with 250W power supply without problems? also would you recomend to change if i want to have an low profile gpu?

bradthetechnut · Answer

Hi @AnryP,

Yes, an I7-2600 can go in a 790 DT.

From PC Builds:

Graphic card and processor will work great together on 1080p resolution:

Intel Core i7-2600 (Clock speed at 100%) with NVIDIA GeForce GTX 1050 Ti (Clock speed at 100%) x1 will produce only 3.46% of bottleneck on 1080p resolution.

https://m.youtube.com/watch?v=1-iDgiRbcX0

https://m.youtube.com/watch?v=Vh2TDZlrc68

While no 790 DT's came up with GTX 1050 ti, the 7010 did. The 7010 is simply the newer version of the 790. DT still has 250w PSU.

Dell optiplex lover · Answer

You can put core i7 2600 with no problems you don't need to change your psu you can also put low profile nvidia gtx 1050Ti and your pc is ready for great gaming experiance

AnryP · Answer

than you for your help! now i can upgrade my old desktop into a decent gaming system without worries

bradthetechnut · Answer

You're welcome!

Optiplex Desktops

Dell Optiplex 790 SFF i7 upgrade??!

Graphic card and processor will work great together on 1080p resolution:

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