I can't wait for mine... Thanksgiving caused my shipment to be delayed.
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[B3D] ASUS HD 5970 Voltage Tweak Edition review
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Very nice overclock.
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| he last generation of dual core GPU from ATI was the 4870x2 and it was two 4870 GPU cores on one card and was keeping the X2 naming scheme. This time ATI slid one in on us and named the new dual core GPU 5970. Little discrepancies like that set us to scratching our heads and we have to dig in and find out why they deviate from an established naming scheme. Well after digging in and looking at the cards the Asus 5970 Voltage Tweak Edition has all the hardware of two 5870 but it has the clock speed of the 5850 so ATI named it the 5970 to avoid bad press by naming it the 5870x2 which wouldn't be correct because of the lower clock speed. Not to worry though ATI and Asus promise massive overclocking headroom so we should be able to push this card up to and beyond the stock clocks of the 5870. That or make some pretty blue smoke emanate from the chassis. |
Very nice overclock.
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Once you reach a certain voltage you start to electroplate the elements in the chip itself, eventually killing the chip.
Originally Posted by Eastrider Normally, I completely dislike ATI stuff, since I had horrid experiences with them on the past. But I can't agree more with this: ALSO: Really can 1,350v kill so easily a GPU as there says, even if it's completely cooled? |
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No matter how cool it is? How can one know the limitations for his own chip?
Originally Posted by Domino Once you reach a certain voltage you start to electroplate the elements in the chip itself, eventually killing the chip. |
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Even if the card is at room temp, voltages will kill it if it's over the maximum safe voltage.
Processors are a good example, it's to the point where maximum safe voltage is the overclocking limit, not temps.
I wouldn't go above the voltages on the voltage tools shipping with the cards.
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Originally Posted by Eastrider No matter how cool it is? How can one know the limitations for his own chip? |
Processors are a good example, it's to the point where maximum safe voltage is the overclocking limit, not temps.
I wouldn't go above the voltages on the voltage tools shipping with the cards.
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Not all GPUs OC equally. There's also the issue of heat affecting stability at a certain point. On water I bet it'd go higher.
Not to mention even if you have a single 5870 @ 1.1GHz I doubt it can compensate for lacking some 1600 shaders
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Originally Posted by NCspecV81 yeah this makes me just want to get 5870's =o\\. I can do near 1100mhz benchmarking stable on the stock cooler with that amount of voltage from smartdoctor. |
Not to mention even if you have a single 5870 @ 1.1GHz I doubt it can compensate for lacking some 1600 shaders
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Notice I used 5870 in plural form. It wouldn't be lacking any shaders.
Originally Posted by DesertRat Not all GPUs OC equally. There's also the issue of heat affecting stability at a certain point. On water I bet it'd go higher. Not to mention even if you have a single 5870 @ 1.1GHz I doubt it can compensate for lacking some 1600 shaders
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Notice I used 5870 in plural form. It wouldn't be lacking any shaders.
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But then you'd have spent an extra $100+ overall?
Originally Posted by NCspecV81 Notice I used 5870 in plural form. It wouldn't be lacking any shaders. |
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which is cool if there is more performance to be had after a full overclock.
Originally Posted by DesertRat But then you'd have spent an extra $100+ overall? |
which is cool if there is more performance to be had after a full overclock.
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true... true...
I suppose if you had the plans and the money for a 5970 another $100+ for even more OC'd performance might be worth it.
Originally Posted by NCspecV81 which is cool if there is more performance to be had after all totalities are realized. |
I suppose if you had the plans and the money for a 5970 another $100+ for even more OC'd performance might be worth it.
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I think we've seen enough of these reviews. We get the point already! The 5970 is King!
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Really? Have you actually tested this and tried this yourself? or is it based on logical assumption?
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Originally Posted by Murlocke Even if the card is at room temp, voltages will kill it if it's over the maximum safe voltage. Processors are a good example, it's to the point where maximum safe voltage is the overclocking limit, not temps. I wouldn't go above the voltages on the voltage tools shipping with the cards.
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Blowing a cap is pretty much out of the question when overclocking voltages don't really add more than 1 volt. All major manufacturers include at least a few volts of headroom on their cap specification.
Originally Posted by Burn For all those non-ECE majors out there, exceeding the rated safe voltage introduces electron tunneling and dielectric breakdown in chips and capacitors respectively- both are not good at all for either and can readily kill processors and capacitors. So yes, even under sufficient cooling, you can indeed kill a processor or blow a capacitor. |
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The cores will still suffer from electron-migration(electron path erosion) sooner or later tho.
I think Burn pointed that out already.
Running cooler helps minutely, since theoretically it lowers resistance, but unless it's like LH2 cooled, it's gonna die sooner rather than later w/ extreme volts.
Originally Posted by grip_racer Blowing a cap is pretty much out of the question when overclocking voltages don't really add more than 1 volt. All major manufacturers include at least a few volts of headroom on their cap specification. |
I think Burn pointed that out already.
Running cooler helps minutely, since theoretically it lowers resistance, but unless it's like LH2 cooled, it's gonna die sooner rather than later w/ extreme volts.
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