AMD Radeon HD 7950 Review Feat. Sapphire & XFX: Sewing Up The High-End Market
by Ryan Smith on January 31, 2012 9:02 AM ESTMeet the XFX R7950 Black Edition Double Dissipation
Our second partner card of the day is XFX’s R7950 Black Edition Double Dissipation. Like the 7970 Black Edition Double Dissipation we reviewed earlier this month, the 7950 BEDD is a factory overclocked card (Black Edition) using XFX’s Double Dissipation cooler.
Starting with the overclock, XFX is shipping the 7950 BEDD with a core clock of 900MHz and a memory clock of 5.5GHz. This represents a 100MHz (12.5%) core clock overclock and 500MHz (10%) memory clock overclock, putting it just shy of the 925MHz core clock the 7970 ships at.
In terms of construction like all of the other 7950 cards launching today XFX is using AMD’s 7950 PCB. This means the PCB measures 10.25” long and features 2 6pin PCIe power sockets towards the rear of the card, while at the front the card uses the AMD standard port configuration of 1 DL-DVI, 1 HDMi, and 2 mini-DisplayPorts. The one notable deviation here from the Sapphire card is that XFX has not included a BIOS selection switch, so the card lacks any kind of ability to easily recover from a bad BIOS flash, and if unlocking proves viable it would not be a good candidate for the process.
Meanwhile cooling is provided by XFX’s Double Dissipation cooler. This is the same heatsink and fan assembly we saw with the 7970 BEDD, which makes this an open air cooler using a pair of fans to push air along an aluminum heatsink running almost the entire length of the card. Because it’s the same assembly, the shrouding for the card sticks out over the end of the PCB, negating the benefit of the shorter 7950 PCB and making the card 10.65” long just like the 7970 BEDD.
Top: 7950 BEDD. Bottom: 7970 BEDD
Do note that while it uses the same fan and heatsink assembly, Double Dissipation does not mean it uses the same vapor chamber assembly to transfer heat from the card. Where the 7970 BEDD used a fairly large vapor chamber, the 7950 BEDD uses a much smaller vapor chamber that only makes contact with roughly half of the heatsink, meaning that heat isn’t being transferred to the extremities of the heatsink nearly as well on the 7950 BEDD. Furthermore the aluminum plate covering the RAM and MOSFETs is poorly sized, leaving parts of the RAM chips (and their thermal pads) exposed. We’ll see how this plays out when we get to our testing, but the 7950 BEDD is clearly not as well built as the 7970 BEDD.
Rounding out the package is the same collection of extras that we saw in the 7970 BEDD. Inside you’ll find the usual driver CD and quick start guide, along with a metal XFX case badge, a mid-length CrossFire bridge, and a passive HDMI to SL-DVI adaptor. All of this is packed in one of XFX’s pleasantly small boxes, which doesn’t use much more space than the card itself.
The MSRP on the 7950 BEDD is $499, $50 over the MSRP for a regular 7950 and making it one of the more expensive 7950s launching today. XFX is offering a base 2 year warranty on the 7950 BEDD, which can be extended to a lifetime warranty by registering the card within 30 days of purchasing it.
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mczak - Tuesday, January 31, 2012 - link
page 4 states that the clocks of the OC 7950 are the same as the shipping clocks of the 7970 (so the cards only differ by the shader units) which isn't true as the reference core clock of the 7970 is 925Mhz, not 900Mhz.Now that's only a 3% difference but given the performance difference from those OC 7950 to 7970 often ends up only being ~5% this definitely is significant.
carage - Tuesday, January 31, 2012 - link
When will the actual cards be available for sale?I've just checked Newegg, Tiger Direct, Micro Center, Fry's, and Amazon, none of them have the 7950 listed.
antef - Tuesday, January 31, 2012 - link
I feel like I'll be waiting forever for a $250 28 nm part (whatever that may be...)casteve - Tuesday, January 31, 2012 - link
Thanks for the review. Looking at the Sapphire card, it's a 30%+ speed bump over the 6950 for just 13 watts more power. I look forward to the 78xx and the GTX 6xx this spring and more reasonably priced mid-ranged gaming cards.Articuno - Tuesday, January 31, 2012 - link
That's why the 7950 is so absurdly expensive. The 5850 was miles ahead of anything nVidia had when it launched, and remained miles ahead throughout the entire first Fermi generation, yet it was launched at a very affordable and acceptable $259 price point.Despoiler - Tuesday, January 31, 2012 - link
I'm not sure what kind of fantasy land you are living in, but the 7950 beats the 580 in everything. It's priced at $450, which ~$17 is cheaper than tier 3 PNY 580 cards. Most 580 cards sit around $500. Why should AMD price the 7950 at $250 and make zero or likely lose money? AMD has better cards. They are actually charging what they should be charging. It was a complete blunder to launch the 5850 and 5870 cards at the prices they did. The only saving grace is they likely converted a lot of Nvidia buyers. The 5850 was my first AMD card and I'm not likely to go back to Nvidia with my bad experiences with their card makers.AnandThenMan - Tuesday, January 31, 2012 - link
Is it true that you did not update the BIOS on the XFX card as per emailed instructions from AMD? According to Hardwarecanucks.com retail versions of the card have an updated BIOS that review samples sent out did not.Ryan Smith - Tuesday, January 31, 2012 - link
We're using the latest BIOS from XFX, 015.013.000.010.000705.http://images.anandtech.com/doci/5476/XFX.gif
AnandThenMan - Tuesday, January 31, 2012 - link
Thanks. It looks like the XFX is just too damn loud, I'm finding their stuff is quite sub par lately.AnandThenMan - Tuesday, January 31, 2012 - link
Page 3 of this thread, no BIOS version is given however.http://www.xtremesystems.org/forums/showthread.php...
"Basically, XFX emailed all media days before launch stating that their retail cards had revised fan speed profiles that allowed for slightly increased temperatures but kept the fans MUCH quieter. They sent us all a the retail BIOS file with the proper speeds. What you see above are the differences between the beta and the final release BIOS"