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Need advice on GPU purchase ( amd 7870 vs R9 270/270X )

post #1 of 5
Thread Starter 
Hello I am stuck in my new GPU purchase due to all the crazy price drop and new technology recently arrived. I am currently using a 4890 and I am not sure if its worth grabbing the new R9 series or save a few bucks and get hd7000 series.

So far I have seen:

1)MSI 7870 2gb
> $ 160(-30 MIR)= 130

2)7950
> about 185 (-20 MIR)= 165

3) R9 270 ~ around 180

4) R9 270x ( looks like its the same thing as a 7870 T ) about 200


my questions are:

what the heck are direct x 11.1/11.2 I have not been keeping up with direct x considering i use old GPU and its always been numbers like 9-10-11 we never had any of this weird decimals. Are these the "new" DX ( lets call these dx 12 and 13 ?)

other than less power and about 2-5% increase in performance ( correct me if i am wrong please ) are the R9 worth purchase now? I tend to only run single GPU and take lots of years to upgrade so any purchase now will be used most likely 3+ years
---> I am on budget but got some nice extra cash ^^


considering prices I decided not to bother with 7850 ( unless i saw for 100 bucks )



Any suggestions/tips appreciated.


P.S-

will my system bottleneck any? I got a lot of freebies upgrades from my cousin after he build new pc this year so i got all his old parts:
= Old parts
*Intel E8400
*Socket 775 Gigabte Ep45-ud3p
*4 gb ddr2 1066 ( i am ashamed i still used )
*Ati 4870 1gb
*A old mid atx case which i used to wrestle with for space XD ( i went full office space after i got new one on it lol good way to relieve stress )

=New parts
*Intel Core I7-920 ( 2.67 ) quad
*Asus P6T deluxe mobo
*4gb ddr3 1600 ( I finally am able to use ddr3 but only 4gb and looking for deals on bfriday for 8gb upgrade at least)
*AMD 4890 ( slight upgrade but it was free )
*Thermaltake kandalf ( i love full atx cases no more going macgyver to try to do anything inside case lol

Love my cousin for his donations XD we always donate old parts to family members for over 10 years ( heck my grandma has my first pc build with old Prescott core XD and good old vodoo GPU)
Edited by KingAlkaiser - 11/26/13 at 12:10am
post #2 of 5
Personally, i'd go with the HD 7950. That 3Gb Vram and bandwidth would last you enough for quite a few years especially on a 1080p monitor. The rest of the solutions are the latest one's with faster clocks, but are essentially re-brands of the HD 7000 series, and none of the options above can compare with the specs of the 7950 for the value it offers for the price. 160$ for 7950 is absolute steal and would out-perform any of the other options at stock by a good margin. Also, the 7950 overclocks really good and some matches the performance of a 7970.
A latest review
post #3 of 5
Both machines are a bit long in the tooth. don't dis that 1066 memory though. if it's set up right it's almost as fast as the 1600

An e8400 probably just won't cut it, unless you can get a truly mad overclock on the thing 4ghz+ An option is to check out the 771 xenon mod thread You could get your machine up to q9550 speeds for about $35. Still not all that quick, but good'nuff.
The 920 is much more viable. You're going to need to overclock that one too, but people get those things up to 4.6ghz pretty regularly.

For either (or both?) the factory heat sink will be inadequate. You're going to need an aftermarket cooler. I'm not going to start yet another war by suggesting one. but they can be had for as little as $30 for a decent one. There are numerous threads on OCing the 920 around the forum. You can get cooling advice there.

either way you're looking at a bit of cash outlay to get these things ready for a faster GPU. Once you do that though, the 7870 and the 270 are identical. the 270x is a 7870ghz edition, with some toys added.

personally I would go for the 7950 if you still have enough money left after setting up your CPU/MoBo. It's got 3g of memory, mantle, (both good fro BF4) and can be OCed into 7970 territory. It's faster, has enough memory for the new games, and is cheaper to boot. Kind of a no brainer.
Edited by bombastinator - 11/26/13 at 12:53am
New gaming rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
4770k some mid range asrock. extreme 4 maybe? 2x gigabyte windforce 7950 2 x 8 corsair balistix sport 
Hard DriveOptical DriveCoolingOS
crucial ct960 LG blu-ray used venamous x win 8.1 pro 
MonitorKeyboardPowerCase
Crossover 30Q5 PRO 30" 2560X1600  cheapest piece of crud I could find antec HCG 750 some thermaltake microcenter blue-light-special... 
MouseMouse PadAudio
came with the cheapass keyboard who cares? some $30 no name 2+sub speakers I bought at mic... 
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New gaming rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
4770k some mid range asrock. extreme 4 maybe? 2x gigabyte windforce 7950 2 x 8 corsair balistix sport 
Hard DriveOptical DriveCoolingOS
crucial ct960 LG blu-ray used venamous x win 8.1 pro 
MonitorKeyboardPowerCase
Crossover 30Q5 PRO 30" 2560X1600  cheapest piece of crud I could find antec HCG 750 some thermaltake microcenter blue-light-special... 
MouseMouse PadAudio
came with the cheapass keyboard who cares? some $30 no name 2+sub speakers I bought at mic... 
  hide details  
Reply
post #4 of 5
Thread Starter 
yeah i already got rid of all my old parts and donated them to one of my broke cousins out of states he would put it to good use ^^.

Thank you for all the information I appreciate it.

I stated with new parts and trying to figure out OC for I7-920 temps now reaching about 45-50 degree C with some random heatsink that was gifted to me might try my luck at a 3.2-3.4 trying my best not to fiddle around with voltages and just do easy as pie core speed change. (maybe 150x22):

Im working with this:
http://postimg.org/image/nh4eyuzxv/

-have any of you guys have had good results with OC softwares instead of direct OC from BIOS? any differences or impacts for using software to OC? my asus board comes with nice little software for easy OC but i always have just changed stuff in bios and never bothered with it before.



unfortunately 7950 flew out and sold out fast -.- i guess ill try my luck at a 7870 if i find it on Bfriday at tiger direct for 130 if i get lucky. (maybe use spare money for a 4gb ram upgrade)
thank you once again for advice.
Edited by KingAlkaiser - 11/26/13 at 2:05am
post #5 of 5
http://uk.hardware.info/reviews/5003/8/five-amd-radeon-r9-270x-tested-asus-msi-sapphire-and-xfx-cooling-noise-levels-and-energy-consumption

For current generation MSI is the way to go for R9 270 series. HIS is okay too, but their 2 year warranty is iffy and their cooler runs louder.

For R9 280X MSI has VRM cooling issues which may have been band-aid fixed by making fans run at normal speeds (2000RPM instead of 1500 or whatever they were running at before the BIOS update).

http://www.tomshardware.com/reviews/radeon-r9-280x-third-party-round-up,3655-5.html

That said a HD7870 is a stronger card than R9 270 if you're overclocking but weaker if not. R9 270X is basically HD7870, but with a more mature 28nm process : it's still luck on whether you get a good chip.

The biggest difference is cooler design: MSI's Twin frozr III for example has 80mm fans & 5 heatpipes, their Twin Frozr IV Advanced has 100mm fans with 5 heatpipes (one is 8mm thicker one). R9 270 series video memory is actually slightly worse, every review I've seen has the R9 270 series packing Elpida memory rather than Hynix. The R9 270 (non-X) also only has up to 150W power due to only one pci-e power connector ; it doesn't allow voltage control/monitoring either due to the OnSemi voltage controller (similar to Nvidia).
Workstation stuff
(407 photos)
 
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