Difference between Three Zotac GTX 780 Cards

[Broc Kelley]

I was having a discussion with someone about which card would be better between a zotac and an msi card, and it lead to a discussion about the differences between the two GTX 780 OC Zotac cards and the GTX 780 AMP

QUESTION:

I am wondering what the differences are between these three cards:

GTX 780 AMP! ZT-70203-10P

GTX 780 OC ZT-70206-10P

GTX 780 OC ZT-70205-10P

They have all the same specs except the bottom two support DX 11.2, but I've been told the AMP! has heating issues compared to the bottom two. I also hear the bottom two have better driver support. Please let me know what the differences are between the 3 cards, including but not limited to their power phases and PCB architecture as a whole.

 

[ultimate gamer dbz]

the bottom 2 is better because those 2 are overclocked

 

[Broc Kelley]

the bottom 2 is better because those 2 are overclocked

No actually the AMP has a higher base clock. I talked to a rep from Zotac and they said this:

Dear Sir,

The ZT-70203-10P has higher clock speed.
The ZT-70206-10P and ZT-70205-10P are identical, but the ZT-70205-10P included game coupon.

All three cards are using the same heatsink and same driver.

B.rgds
Peter Tang
support@zotac.com

 

[Jonathan Cave]

I own the Zotac 780 Ti OC

The card shows through various tools that its core is 941 MHz (base) 1006 MHz (boost)

When i run a game/benchmark it shows the card actually boosts to 1072 MHz which is exactly the same as the AMP version.

i understand there's a 200mhz difference in memory clock between the OC and AMP versions, but the core on the OC version seems to behave like the AMP version (1072 Mhz core) even though it shows as 941 MHz (base) 1006 MHz (boost) in most utilities.

i've used various GPU software from GPUz to Afterburner and they all conclude that the card actually runs at 1072.

Any ideas?