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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Ryan Smith - Tuesday, January 31, 2012 - link
Thanks. It looks like the culprit is the ShareThis widget we use. I'll have our developers look at it in the morning.Ananke - Tuesday, January 31, 2012 - link
This is a wonderful but too expensive product for the targeted market niche...It will not gain user base by April to attract software developers away from Kepler...Unless NVidia really executes bad /which they will not-internal source/, AMD will be positioned worthlessly by price/performance. Anyway, I admire AMD and I use their products, just their strategy has been lost recently.gnorgel - Tuesday, January 31, 2012 - link
It seems quite pointless to me to benchmark an OC 7950 vs a stock clocked 7970.Anyone who OCs a 7950 would OC his 7970 too. The interesting question is how these 2 OCed Cards perform against each other - this decides whether the the price difference is worth it or not.
kmmatney - Tuesday, January 31, 2012 - link
The best way to get performance per dollar is at this website:http://www.videocardbenchmark.net/gpu_list.php
and sort by "Video Card Value". Using this chart, I bought an HD6850 today, to replace my HD4890 (which is also near the top of the chart). It has enogh performance for me. The performance per dollar is dominated by AMD at the moment.
kmmatney - Tuesday, January 31, 2012 - link
My comment was supposed to be a response to another comment...LuxZg - Wednesday, February 1, 2012 - link
Now all that I wish for is direct comparison between Sapphire card and PowerColor PCS+ version.. Based on techPowerUp's review PowerColor could actually have even better cooling solution (noise/heat) which would really be amazing since Sapphire is already awesome. Make my wish come true Anand! :)And thanks for great review guys and showing off what a nice job AMD & Sapphire did with their new products...
ChosenOne - Wednesday, February 1, 2012 - link
Here is the link for the comparison chart between PowerColor and Sapphire.ChosenOne - Wednesday, February 1, 2012 - link
forgot the linkLuxZg - Thursday, February 2, 2012 - link
Thanks a lot! Seems that Sapphire has the upper hand after all, in both temperatures and noise..Th-z - Wednesday, February 1, 2012 - link
What GCN is able to do in the future is yet to been seen. They need a software ecosystem to support it, like what CUDA is having. In terms of gaming, aside from lower power consumption, the price isn't very attractive. I can see 7970 command a hefty premium, but the price of 7950 would fail AMD to capture some market share. The price they're trying to undercut is a single-GPU flagship part, which also carries a premium over 570, yet 7950 isn't a flagship part.In terms of gaming performance, 7950 is close to 580, which is close to 6970, yet it costs so much higher than 6970. It would be interesting to see how AMD is going to price their VLIW4 7800 and lower parts, because from the specs, they aren't much faster than 6000 series. This time, we probably won't see good performance jump with similar price points even after a major die shrink (remember they even skipped 32 nm). And I think the unnamed NVIDIA source said they was expecting more from 7970, which I think isn't a bluff, considered their Fermi debacle.