Reddit mentions of Sapphire Radeon HD 7950 3GB DDR5 HDMI/DVI-I/Dual Mini DisplayPort PCI-Express Graphics Card with Boost 21196-00-20G

Man, that looks like an awesome OC. I have [this] (http://amzn.com/B00BXVFM3K) Sapphire 7950 w/ Boost but I'm really hesitant to OC it since it's a reference card and already runs hot with intense games like Crysis 3 and The Witcher 2. It gets into the high 70s (76C a lot of the time). I live in the Pacific where it's really hot, so ambient temps are constantly high where I'm at (33C in the summer in my apartment). Sad because it seems like the 7950 is a beast for OCing.

I kind of regret not springing for one with a better cooling system. Oh well. Nice work.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202026&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

250 on newegg with 3 games.

http://www.amazon.com/gp/offer-listing/B00BXVFM3K/ref=sr_1_2_olp?ie=UTF8&qid=1372961520&sr=8-2&keywords=radeon+7950&condition=used

250 on amazon. I wouldn't pay more than 220 for the card. It goes for that all the time here. Don't mess with people's for sale threads :D

I was watching a video review and it had me sold on keeping the case up until he was going over the internal dimensions of the case. My video card is 12.5 inches long, according to this part in the video, that means it isn't going to fit. Or can I completely remove a couple of those drive trays in order to make the room that I need?

These to be exact

here are united states links
http://www.amazon.com/AMD-FD8350FRHKBOX-FX-8350-Processor-Black/dp/B009O7YUF6/ref=sr_1_12?s=electronics&ie=UTF8&qid=1368894389&sr=1-12&keywords=7950

http://www.amazon.com/Sapphire-DisplayPort-PCI-Express-Graphics-21196-00-20G/dp/B00BXVFM3K/ref=sr_1_3?s=electronics&ie=UTF8&qid=1368894389&sr=1-3&keywords=7950

I just got a 7950 off Amazon for $280 a pop. That might change your calculations: http://www.amazon.com/Sapphire-DisplayPort-PCI-Express-Graphics-21196-00-20G/dp/B00BXVFM3K

Card 0 Sapphire 7950 - 21196-00-20G

Clocks: 1100 Core, 1675 Memory

Voltage: 1087 VDDC

Temps: 70-75C

Fan: 60%

Running Guiminer with the following settings:

Thread Concurrency:21712, Vectors: 1, GPU Threads: 1, Stratum: Yes, Worksize: 256, Intensity: 20

KH/s: 659

Card 1 Sapphire 7950 - 21196-00-20G

Clocks: 1110 Core, 1675 Memory

Voltage: 1087 VDDC

Temps: 71-76C

Fan: 60%

Running Guiminer with the following settings:

Thread Concurrency:21712, Vectors: 1, GPU Threads: 1, Stratum: Yes, Worksize: 256, Intensity: 20

KH/s: 645

Running these side by side in a closed case with 6 case fans installed.

with the extra money, switch the gpu for one of these, it's actually the same card I have myself and I can tell you first hand its awesome, just make sure it will fit in your case.

http://www.amazon.com/Sapphire-DisplayPort-PCI-Express-Graphics-21196-00-20G/dp/B00BXVFM3K/ref=sr_1_2?ie=UTF8&qid=1369196321&sr=8-2&keywords=sapphire+7950

$280 after rebate + Never Settle games. Sell those and you get a brand new 7950 for $230ish :)

I get 605 Mh/s with a Sapphire 7950 ($300 plus a $20 rebate on Amazon) after setting the core to 1175, the memory to 625, and the fan to 75%. I used Afterburner to do the clocking.

I found these settings on Amazon of all places. It was a listing for these same cards. Guy had all of the settings and what he managed to get out of them.

thread-concurrency: 22400
lookup-gap: 2
vectors: 1
intensity: 20
shaders: 1792
gpu-engine: 1100
gpu-memclock: 1600
gpu-powertune: 20
gpu-fan: 100

You can supposedly run the memory a bit higher (1650) but I have one card that just can't handle it (throws hardware errors occasionally), so I have dialed it back a little to avoid those.

This particular rig is in a 4U server chassis and is rack mounted in a data center, so it runs relatively cool. 1400W dual PSU jobby with massive internal fans all the way across the chassis feeding directly into the intake fans of the Sapphires. I had the Gigabyte FW3 in there, but those cards aren't designed to work in a chassis like that.

The highest card of the 4 is 84C (which is a tad high I know), and the lowest is 72C. All running 1.250 volts. I would love to run a lower voltage, but it's a Linux box so my options are limited.

Edit: here is the link to the amazon posting, check the comments, first comment is gold.

Double Edit: http://i.imgur.com/v6dhvVe.png

http://www.amazon.com/Sapphire-DisplayPort-PCI-Express-Graphics-21196-00-20G/dp/B00BXVFM3K/ref=sr_1_3?ie=UTF8&qid=1367695414&sr=8-3&keywords=7950

Sapphire 7950 Boost