Topic: 2x6870($300) VS 1x6970($300) (Read 1835 times)
thanks guys, i ordered 2x 6870. Hope they dont freeze my pc every 24 hours like my old 5970 did.
Now, after massive thread derailment... back to OPs question.
stock vs. stock 2*6870 easily beats 6970. 2*~290 = ~580 vs. ~390 for a 6970.
stock vs. stock 2*6870 easily beats 6970. 2*~290 = ~580 vs. ~390 for a 6970.
agreed and as originally said, if slots are not at a premium
Now, after massive thread derailment... back to OPs question.
stock vs. stock 2*6870 easily beats 6970. 2*~290 = ~580 vs. ~390 for a 6970.
stock vs. stock 2*6870 easily beats 6970. 2*~290 = ~580 vs. ~390 for a 6970.
Yup, just call it a 5870 and move forward.... I have some 7970's here in a box, cant wait to get them home
Well, iirc GPU-Z shader # is simply based off a hardcoded table of device IDs, so that's no big help either.
Atm I'm out of ideas of how to figure out what is really going on there, just seems *very* odd that your 5850 is 11% faster than what everyone else is reporting, and 111% just happens to be very close to 1600/1440.
Atm I'm out of ideas of how to figure out what is really going on there, just seems *very* odd that your 5850 is 11% faster than what everyone else is reporting, and 111% just happens to be very close to 1600/1440.
hmmm, interesting..
well, it sure is hashing exactly like a 5870 would.... maybe a 5870 with a 5850 bios? i dunno.
if is look like a duck and quacks like a duck!
Just ran GPU-Z.. 1440 shaders.. It's a 5850 like I thought.
http://www.techpowerup.com/gpuz/47rdp/
http://www.techpowerup.com/gpuz/47rdp/
snip
Yup.. looks like you have a 5870 there clocking away at the normal 430Mh at 930 clock.Honestly not sure WTF to make of that, all I get is "congratulations, you're the proud owner of a 5850 with 1600 enabled shaders."
Hmm.. You might be right, actually.. I remote-desktop into that machine.. maybe it got a 5870 stuck in it rather than the 5850 that I thought was in it..
Have to check when I'm over at the facility where that box lives later this afternoon..
Have to check when I'm over at the facility where that box lives later this afternoon..
snip
Yup.. looks like you have a 5870 there clocking away at the normal 430Mh at 930 clock.
930 core. under 70C.
430Mh/s at 930 core on a 58*50*?That'd be 335Mh/s stock. On a 5850.
Or 436Mh/s on a stock 5870.
So... why is everyone else reporting numbers *way* below that?
Not sure why everyone else is so low - or why I'm so high.... Here's a screen-shot showing the Device Hardware ID's (5850), MSI Afterburner Settings, and Mining Results.
(EDIT)Hmm.. In taking that screen-shot, I see I'm running a bit warm today.. 74C.. Have to check on my fan. Also, screenshot shows 427.xx Mhash/sec which was primarily due to me moving images around on the screen - my rate dropped by a few Mhash while I was doing that and taking the capture. It's usually about 431.xx if I leave the machine alone.
930 core. under 70C.
430Mh/s at 930 core on a 58*50*?That'd be 335Mh/s stock. On a 5850.
Or 436Mh/s on a stock 5870.
So... why is everyone else reporting numbers *way* below that?
ArtForz, how do you calculate these formulas and stuff ?
I look and don't understand anything. LOL
How do you get the mhash/s value from the core and shaders the card has ?
430Mh/s / 930MHz / 1440 shaders = 0.000321087 hash/shaderclock
0.000321087 hash/shaderclock * 850 MHz = 272923.95 hash/shadersecond
272923.95 hash/shadersecond * 1600 shaders = 436678320 hash/sec.
so to convert, it's generally simply hashrateA / clockA / #shadersA * clockB * #shadersB
930 core. under 70C.
430Mh/s at 930 core on a 58*50*?That'd be 335Mh/s stock. On a 5850.
Or 436Mh/s on a stock 5870.
So... why is everyone else reporting numbers *way* below that?
ArtForz, how do you calculate these formulas and stuff ?
I look and don't understand anything. LOL
How do you get the mhash/s value from the core and shaders the card has ?
930 core. under 70C.
430Mh/s at 930 core on a 58*50*?That'd be 335Mh/s stock. On a 5850.
Or 436Mh/s on a stock 5870.
So... why is everyone else reporting numbers *way* below that?
930 core. under 70C.
290MH on a 5870? Seriously? I get over 430 from 5850s.
*6*870. Probably stock clocks or a suboptimal miner with a very mild OC.And 430Mh/s from 5850s? That's ~1GHz core. Wonder how long they'll last...
290MH on a 5870? Seriously? I get over 430 from 5850s.
will run everything at stock. which is better for mining? they cost about the same. Thanks
2x6870 ($300)
or
1x6970($300)
2x6870 ($300)
or
1x6970($300)
if not for the fact that one deal uses 2 slots, and the other one.
6870 will get you about 290 Mh that is 580 Mhsh
6970 is about 400-410
will run everything at stock. which is better for mining? they cost about the same. Thanks
2x6870 ($300)
or
1x6970($300)
2x6870 ($300)
or
1x6970($300)
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