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Author Topic: Radeon 7750 and 7770 says hi!  (Read 20412 times)
Brunic
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February 15, 2012, 10:04:03 PM
 #1

Hi 7770!
http://www.newegg.ca/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&N=-1&isNodeId=1&Description=radeon+7770&x=0&y=0

Hi 7750!
http://www.newegg.ca/Product/Product.aspx?Item=N82E16814121558&Tpk=radeon%207750

I know they're not as attractive as the 79xx series, but since the 5770 and 6770 had an interesting 100$ for 200 MHash/s, I suppose it could be interesting to check it out. But sadly, they have less SPU than the 6770.

640 SPU for the 7770, 800 SPU for the 6770
512 SPU for the 7750, 720 SPU for the 6750

http://kotaku.com/5885246/putting-amds-budget+friendly-radeon-hd-7700-starting-lineup-to-the-test

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xzion
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February 15, 2012, 10:47:29 PM
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looks like they'll be pretty pathetic for hashing purposes.
here's to hoping the 78XX has some better offerings.

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ssateneth
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February 16, 2012, 12:18:28 AM
 #3

I thought 6770 was VLIW5, so the higher spu count is mostly irrelevant.

Miner99er
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February 16, 2012, 01:13:57 AM
 #4

Did the maths on the 7770... somewhere around 215 Mh/s, It's little bro, the 7750, does 172.

mind you this is quick and dirty off that we've seen a 7970 do.

So yeah, same hashrate as the 57x0/67x0 cards, but a much smaller power requirement.

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RaggedMonk
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February 16, 2012, 01:15:18 AM
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What are the specifications of a GPU which affect hashrate? 

What is SPU? 

Thanks
Isepick
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February 16, 2012, 01:51:01 AM
 #6

I ordered that Asus 7750 today just for fun. Although the stats I saw had it at 832 SPUs...ooopsie. Still, it is rated @ 55w max, so we'll see. I'll post a detailed review this weekend.
Davyd05
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February 16, 2012, 03:51:27 AM
 #7

auto notify for the asus 7750 already lol

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w0mbat
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February 16, 2012, 11:54:26 AM
 #8

check this out: http://www.amd.com/us/products/desktop/graphics/7000/7770/Pages/radeon-7770.aspx

"Fold and mine faster than ever with AMD App Acceleration powered by the unprecedented 28nm GCN Architecture."

You have to keep in mind, that GCN is much more efficient than VLIW4 or VLIW5.

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e21
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February 16, 2012, 04:50:25 PM
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XFX 7770 arriving this afternoon  Grin I'll be sure and post hash rate and clocks later today!
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February 16, 2012, 04:55:41 PM
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XFX 7770 arriving this afternoon  Grin I'll be sure and post hash rate and clocks later today!

Make sure to try out DiabloMiner and cgminer !
darthy
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February 17, 2012, 08:56:11 AM
 #11

Any news about the performance?
BlackPrapor
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February 17, 2012, 10:03:24 AM
 #12

I'm really interested in it's performance! Although I don't expect it to be more than 170Mhs at stock clocks, still... If you could try to downclock it to as low voltage as possible at stock clocks and measure power consumption, that'd be perfect =)))

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March 12, 2012, 08:13:26 PM
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Any updates on hashes for these cards? =3
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March 12, 2012, 08:36:27 PM
 #14

While I do not know the hashes, the specs on these cards vs the price should make them not a great mining card.


The 7850 on the other hand should be quite interesting. 

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March 12, 2012, 11:59:52 PM
 #15

anyone know the wattage of 7770? Especially if undervolted, and maybe even after upgrading the cooling Wink

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nimnul
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March 30, 2012, 10:55:45 AM
 #16

80W. See http://en.wikipedia.org/wiki/Southern_Islands_(GPU_family)

demkd
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March 31, 2012, 04:48:45 AM
 #17

anyone know the wattage of 7770? Especially if undervolted, and maybe even after upgrading the cooling Wink
idle 7w
full load 77w
http://www.techpowerup.com/reviews/Powercolor/HD_7770/24.html
ARapalo
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April 02, 2012, 05:47:28 PM
 #18

So are these 7770 worth it over the 5770?
eroxors
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April 20, 2012, 10:22:39 PM
 #19

So are these 7770 worth it over the 5770?

Not even close. Check here: https://bitcointalk.org/index.php?topic=64241.20

Max for 7770 is around 180 Mh/s with significant overclocks

Don't get caught up in the game and have a nice day!
BinaryMage
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April 21, 2012, 12:33:56 AM
 #20

<GrammarNazi> "Radeon 7750 and 7770" is a plural subject; you need say, not saysWink </GrammarNazi>

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