radeon 7750 crossfire?

[crazymonkeyzero]

I was not aware of this till now, but apparently the Radeon 7750 can be crossfired, and I was curious to know how the performance would be compared to single cards in the 150-200 dollar range. I am looking for a card for less than $200 and was considering the either 7850 or the 650ti boost. How would the 7750 CF stack up against these? You can currently pick up a 7750 on sale for less than $90 so a crossfire setup of the 7750 would be around $180.

Thanks for the advice.

Edit. I am referring to the ddr5 version of the 7750.

 

[The Alias]

I was not aware of this till now, but apparently the Radeon 7750 can be crossfired, and I was curious to know how the performance would be compared to single cards in the 150-200 dollar range. I am looking for a card for less than $200 and was considering the either 7850 or the 650ti boost. How would the 7750 CF stack up against these? You can currently pick up a 7750 on sale for less than $90 so a crossfire setup of the 7750 would be around $180.

Thanks for the advice.

7770s can be had for less after rebate check pcpartpicker for prices

 

[crazymonkeyzero]

7770s can be had for less after rebate check pcpartpicker for prices

I typically don't count rebates as part of the discounted price since they take sooo long to come back, if they do at all. And the cheapest 7770 I found was $99 AR.

I was also taking into account lower power consumption of the 7750, since it doesn't require any 6pin/8pin connectors.

 

[boxleitnerb]

CF or SLI with such lowend solutions doesn't make sense, it's not worth the hassle. Only when the fastest single GPUs are not enough, is this option a viable alternative.

 

[KingFatty]

Agreed, it's like strapping two mopeds together. Sure you'll climb hills faster, but why not just buy a proper motorcycle?

Another issue is you are incurring some hassles with a multi-card setup. If you spend $180 on a single card, say a 7850 or 7870, you would be in much better shape because every single game will enjoy the improved performance. What if you try to run a game that doesn't support eyefinity, then you are really stuck with one little moped.

Also, can you explain how you arrived at your value for taking into account the power consumption? I could see that being important if your entire household was solar powered. But if you are connected to a decent power grid, such as anywhere in the USA, I'd suggest you completely disregard any power information because it's not going to be where you feel the card. You will feel the card based how it performs, and any power consumption will be a distant whisper that you will ignore.

 

[dave_the_nerd]

It's a lot of effort to go to when you can get a 7850 2GB for the same price which will support more games better and be slightly faster to boot, even with the same number of SPs.

I actually had a 7750 CF setup. Admittedly, I play older games, but about half of them either didn't work with CF or worked better with CF disabled.

 

[nanaki333]

if you already had a 7750, i'd say knock yourself out. buying new though... your money is better spent on a nicer single card.

 

[tweakboy]

Why on earth you do this. Cheap model SLIed means nothing. Like nanaki3 said.

Get 1 card which will be faster then those SLIed, 7750 is right choice for you. But if your rich you can grab a 7850 or something... gl

What do you have that 6core baby Overclocked too ??? nanak1 ?

 

[Eureka]

Consider this. Two 7750s will give you roughly a 7850 1GB. It is not considered a high-end card, so you'll still be getting lower average frames. Now, however, you've just introduced microstutter* because of Crossfire, and the power isn't enough to keep the frames at Vsync level (I can't imagine any newer games at 60fps with a 7750 CF solution).

Crossfire is only a solution when you can hold frames at near V-Sync, or else microstutter makes it unplayable.

Sell the card and get a 7850, or stick with what you have.

*I tried CF with my 7950. I don't know why they call it microstutter, when it's definitely not small. Should be called macrostutter.

 

[crazymonkeyzero]

Thank you of all your responses. I was asking because I was'nt exactly sure where the CF setup stood compare to the others. So I will definitely go with a single card setup.


Do you guys recommend the 7850 or the 650ti boost? I will not spend more than $200, and for my purposes, that is good enough, coming from a 9800gtx+. Also if I will only game at no more than 1080p, then is over 1gb vram even help?

 

[96Firebird]

I would get 2GB over 1GB for 1080p. It may not be needed now, but who knows what the future holds.

There is a deal posted over in the Hot Deals section for the MSI Twin Frozr GTX 650 Ti Boost for $140AR. Seems like a good deal if you are in the US.

 

[Eureka]

Thank you of all your responses. I was asking because I was'nt exactly sure where the CF setup stood compare to the others. So I will definitely go with a single card setup.


Do you guys recommend the 7850 or the 650ti boost? I will not spend more than $200, and for my purposes, that is good enough, coming from a 9800gtx+. Also if I will only game at no more than 1080p, then is over 1gb vram even help?

Yes. At 1080p, in BF3, I'm hitting 1GB.

For a limit of $200, you can get a 660 or 7870 (on sale).

E.g., http://hardforum.com/showthread.php?t=1766435

 

[nanaki333]

Thank you of all your responses. I was asking because I was'nt exactly sure where the CF setup stood compare to the others. So I will definitely go with a single card setup.


Do you guys recommend the 7850 or the 650ti boost? I will not spend more than $200, and for my purposes, that is good enough, coming from a 9800gtx+. Also if I will only game at no more than 1080p, then is over 1gb vram even help?

i would go with the radeon card. they're both really good cards, but i've seen even the 7850 cards come with some decent games. freebies are always nice!

 

[CustomS10]

Sorry for a long post, but first a little background. Early December I decided to build a rig in an htpc case (silverstone MLO3), figuring an A10-5800k with an HIS 6670 low-pro (16Gb RAM, 2x SSD) would be enough for moderate gaming. Low-res and everything turned down, I could get a decent 25-30 fps in Diablo III, but I knew every other game coming out soon would need more power. (I was only scoring 2550 in 3dmark11, most tests running in the 13-15 fps range.)

So a short time later, I see these sapphire 7750 low-pros and I decide that @ $110 a piece, 2 would make a real video card. I now get a 4950-4980 in 3dmark11 and games look good in 1080p. But sadly, the 2 discrete cards don't crossfire with the APU, or I would get even better performance... Which brings me to my own questions...

Since the Richland has a supposedly better GPU on board, could I crossfire that with at least one of my 7750s? Could I even get a 3x crossfire with 2 7750s and the new A10-6800k APU? If so, it would be worth buying a new APU. If I can only count on the 5% increase on the CPU and still have to disable the GPU to run my twin 7750s, then I'd rather just overclock and save the money. Any comments appreciated.

 

[bononos]

Sorry for a long post, but first a little background. Early December I decided to build a rig in an htpc case (silverstone MLO3), figuring an A10-5800k with an HIS 6670 low-pro (16Gb RAM, 2x SSD) would be enough for moderate gaming. Low-res and everything turned down, I could get a decent 25-30 fps in Diablo III, but I knew every other game coming out soon would need more power. (I was only scoring 2550 in 3dmark11, most tests running in the 13-15 fps range.)

So a short time later, I see these sapphire 7750 low-pros and I decide that @ $110 a piece, 2 would make a real video card. I now get a 4950-4980 in 3dmark11 and games look good in 1080p. But sadly, the 2 discrete cards don't crossfire with the APU, or I would get even better performance... Which brings me to my own questions...

Since the Richland has a supposedly better GPU on board, could I crossfire that with at least one of my 7750s? Could I even get a 3x crossfire with 2 7750s and the new A10-6800k APU? If so, it would be worth buying a new APU. If I can only count on the 5% increase on the CPU and still have to disable the GPU to run my twin 7750s, then I'd rather just overclock and save the money. Any comments appreciated.

You shot yourself in the foot by getting an APU for a mainstream gaming pc. Integrated graphics is still slow by comparison with discrete cards and performance isn't additive or scale linearly with crossfire with a lopsided pairing.

 

[KingFatty]

Why the seeming urge to use crossfire? Have you considered if this is a quest to achieve better performance, or is it a quest to achieve crossfire at all costs?

If your goal is to achieve better performance, you may need to abandon the quest to achieve crossfire.

 

[Durvelle27]

i suggest getting a single HD 7870 or HD 7870 XT

 

[crazymonkeyzero]

I think I have decided to settle for a 7850 due to the free games, as well as it being the best bang for the buck atm. I will probably keep my eyes peeled for the 660 or 7870 on sale, but will probably end up buying by the end of the month. I saw the gtx 660 SC once at $180, wish I would have pulled the trigger then.

 

[nanaki333]

I think I have decided to settle for a 7850 due to the free games, as well as it being the best bang for the buck atm. I will probably keep my eyes peeled for the 660 or 7870 on sale, but will probably end up buying by the end of the month. I saw the gtx 660 SC once at $180, wish I would have pulled the trigger then.

this guy has a 7870 for $200 shipped.

http://forums.anandtech.com/showthread.php?t=2317767&highlight=radeon+7870

 

[crazymonkeyzero]

I did'nt realize the 7870 is priced so close to the 7850 2gb. In fact my local retailer has it for $190 with a price match. Does anyone know how much power I would need to run it, since it require two power connectors. I was planning to purchase a corsair cx430 with the 7850, but I think I would probably want a 500w+ right? The cpu is an i5 2500k.

 

[Durvelle27]

I did'nt realize the 7870 is priced so close to the 7850 2gb. In fact my local retailer has it for $190 with a price match. Does anyone know how much power I would need to run it, since it require two power connectors. I was planning to purchase a corsair cx430 with the 7850, but I think I would probably want a 500w+ right? The cpu is an i5 2500k.

what are the rest of your system specs

 

[crazymonkeyzero]

what are the rest of your system specs

Intel Core i5 2500k stock
Asus P8C WS motherboard
2x4gb DDR3 1333 Corsair memory (1.5v)
single 1tb 7200 rpm hdd
Coolermaster H212 Evo cooler
DVD RW drive
3 120mm fans
Corsair CX 430 psu

 

[Durvelle27]

Intel Core i5 2500k stock
Asus P8C WS motherboard
2x4gb DDR3 1333 Corsair memory (1.5v)
single 1tb 7200 rpm hdd
Coolermaster H212 Evo cooler
DVD RW drive
3 120mm fans
Corsair CX 430 psu

It should be fine if you don't OC but if you want more headroom you can get a 500w

 

[T_Yamamoto]

It should be fine if you don't OC but if you want more headroom you can get a 500w

Even with a little oc, i think you'll be fine

 

[toyota]

get a better psu so as not to limit your gpu options for the time you will own that pc. I dont know why people try and skimp by going with entry level psus like "builder" series on a gaming pc when higher quality psus are only 20-30 bucks more. my tx650 was only 60 bucks on sale and is made with higher quality parts and makes its rated power at a realistic 50 C not 30 C as on the builder or other entry level psus. plus those cheaper psus don't make as much power on the 12v line relative to their max wattage.