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£150

How close are highly clocked 7870's to highly clocked 7850's though?

A decent custom cooled 7870 is more than 180 isn't it?

More chance of getting a decent balance between performance and heat/noise with a custom cooled 7850 then a cheapo reference 7870.

Edit: Checked. A decent 7870 is a fair bit north of £200.
 
The cheapest 7870 with a decent cooler is still £200 though. Like for like the 7870 is about £30 (or about 19%) more than a 7850. IMO the 7850 (non reference cooled) is still the better buy.
 
Rusty0611 said:
How close are highly clocked 7870's to highly clocked 7850's though?

A decent custom cooled 7870 is more than 180 isn't it?

More chance of getting a decent balance between performance and heat/noise with a custom cooled 7850 then a cheapo reference 7870.

Edit: Checked. A decent 7870 is a fair bit north of £200.
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Thats true, the usual OC for a 7850 is 1100'ish, a 7870 is ~1200'ish

The 7870 has 25% more cores than the 7850, max 7850 vs max 7870 realistically is about + 20% (ish) :D

And yes, one with a good cooler, one that should do 1200Mhz is just north of £200.
 
Rusty0611 said:
I've seen many fair heftier OC's than 1100 on the 7850 thread humbug. Not sure if that is the norm though.
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Yeah, same with 7870, a good one will do 1350Mhz.

Its the Volts, the 7850 is limited to less volts than the 7870 because of the PCB, but one with a 7870 PCB should do it. likewise a 7870 with a 7950 PCB does very well to.
 
here... http://www.overclockers.com/msi-r7870-hawk-review

Ironic that no one seems to have bought one, probably for the same reason i didn't. MSI don't have a very good rep on AMD, that card was and still is an unknown. i did not know about it until it was to late.

You get a good card with level up PCB, or Custom PCB and they overclock like nothing else, even the 7970 on a good custom PCB will do ~1400Mhz on the stock cooler.
 
1200 is easily obtainable on a decent branded non reference 7850. There is no evidence at all that 7870's clock higher on average than the 7850's, I think you just made that up to justify your purchase a little.

At the same clocks the 7870 is around 5% faster than the 7850, just as the 7970 is about 5% faster than the 7950 at the same clocks.

All the 7xxx cards top out at around 1200-1300MHz with good air coolers and added voltage. ( usual silicon lottery disclaimer applies)
 
On that card 24/7. 1250Mhz / 1300Mhz, if they get it and it does like that one did on the stock cooler there is no reason why you could not run it like that 24/7. He did that without extream volts unlock on its own cooler.
 
humbug said:
On that card 24/7. 1250Mhz / 1300Mhz, if they get it and it does like that one did on the stock cooler there is no reason why you could not run it like that 24/7. He did that without extream volts unlock on its own cooler.
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Sorry I don't follow. Who is this directed at? Me or psycho?
 
Is it worth getting a £167 custom cooler 7850 (Sapphire/MSI/Gigabyte) over a reference 7850 at £140, or even a 2nd hand 7850 at ~£130? Really can't decide
 
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