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 Sapphire HD 7950 Overclock Edition
Since our reference 7950s are built on the 7970 PCB and cooler, we’re going to jump right into our vendor cards starting with the Sapphire HD 7950 Overclock Edition.
As with all of the 7950 cards launching today, Sapphire’s HD 7950 Overclock Edition uses the AMD 7950 PCB. This is a slightly shorter PCB measuring 10.25” long, saving .25” over the 7970 PCB by eliminating a few components that the lower board power of the 7950 makes unnecessary. The PCB is otherwise very similar to the 7970 PCB, utilizing 12 GDDR5 memory chips organized around the Tahiti GPU, while at the top you’ll find the 2 CrossFire connectors, a pair of 6pin PCIe power sockets, and the BIOS selection switch. The latter will be of particular interest to unlockers, as the switch should make it possible to safely attempt to unlock the 7950 into a 7970.
Moving on, as this is a semi-custom card the real differentiation is in the factory overclock and the cooler. On the performance side of things Sapphire will be shipping the 7950 Overclock Edition at 900MHz core and 5GHz memory, representing a 100MHz (12.5%) core overclock and no change on the memory clock.
Meanwhile for the cooler Sapphire is using what they’re calling the Dual-X cooler. The Dual-X is yet another double-wide dual-fan open air cooler, with 2 fans providing copious airflow over an aluminum heatsink running virtually the entire length of the card. Sapphire’s fan cutouts are just a bit bigger than most other dual-fan coolers and placed a bit higher, and as a result the Dual-X cooler is a bit taller than the PCB by about 15mm at its highest point. Meanwhile the cooler is also a fair bit longer than the PCB, putting the total card length at 11”.
Moving below the fans and the heatsink we’ll find the heatpipe assembly, which is responsible for carrying heat from the GPU to the heatsink. The Dual-X uses 5 copper heatpipes of varying radius that run from one end of the heatsink to the other. The 5 heatpipes converge at the base of the assembly, where a copper baseplate provides contact with the GPU. Meanwhile cooling for the VRM MOSFETs and RAM is provided by a black aluminum plate, which is placed over those components with heat transfer provided by the use of thermal pads. There is no connection between the plate and the heatsink, so the only heat dissipation from the plate is provided by whatever airflow from the fans reaches the plate.
At the front of the card we’ll find the display ports, which as this is an AMD PCB the card utilizes the standard AMD 7000 series port configuration of 1 DL-DVI port, 1 HDMI port, and 2 mini-DisplayPorts. Filling out the second slot is the grating for ventilation, though even with the ventilation slot the usual precautions for an open-air cooler apply: you’ll need a case with enough airflow to handle the roughly 200W of heat the card is capable of dumping inside of your case.
Rounding out the package is the usual collection of dongles and materials. Sapphire includes 2 molex-to-6pin PCIe adaptors, an HDMI to DVI dongle, a miniDP to DisplayPort dongle, a DVI to VGA dongle, and a 1.8m HDMI cable. Along with the dongles Sapphire packs a quick start guide and a driver installation CD.
The only thing you won’t find packed in the box is TriXX, Sapphire’s in-house overclocking utility. TriXX has been around since the 6900 series, but as this is the first high-end Sapphire card we’ve reviewed since it was released, this is the first time we’ve had it available for a review.
Fundamentally TriXX is a fairly well designed, albeit barebones overclocking utility. Along with an info readout similar to GPU-Z, TriXX provides overclocking and fan control support for Sapphire’s cards, including support for custom fan profiles and more importantly voltage control. With TriXX it’s possible to overvolt most of Sapphire’s performance and high-end cards, and as Sapphire uses AMD reference PCBs it also works with any other cards using AMD’s PCBs.
Beyond these features there’s little more to TriXX. It’s not an all-encompassing video card utility like MSI’s Afterburner, which means it comes up short if you need more functionality but it's exactly what you need if you just want to overclock. To that end it’s a clear step up compared to most other manufacturer’s poorly designed utilities, and from a design perspective its only real sin is the hard to read blue-on-black text. Otherwise it’s a competent overclocking utility that does exactly what it’s supposed to and provides voltage control for those who need it.
Finally, Sapphire will be selling the 7950 OE for $479, $30 over the baseline 7950 MSRP. Meanwhile the warranty on their card is their standard 2 year warranty.
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Shadowmaster625 - Tuesday, January 31, 2012 - link
Well some of us do care about noise and power consumption. That sapphire card runs very cool and quiet, nearly silent in fact. It uses 30 less watts at typical idle and nearly 100 watts less than a 580 while gaming. That's about a penny per hour of gaming. Power savings could easily reach $40 over two years of gaming, plus another $30 if you leave your pc on 24/7, for a total of $70 saved over two years.Thats is about what one year of technological advancement is worth.
SlyNine - Tuesday, January 31, 2012 - link
Because in part the 480/580 are dogs in regards to power consumption. My 5870 idles at nearly the same and only uses a bit more under load. It is also 2 1/2 years older.AssBall - Tuesday, January 31, 2012 - link
You do realize that the parts you have "execs jumping out of windows" about account for maybe 1/200th of the companies income? Guess not.chizow - Tuesday, January 31, 2012 - link
Actually I think these parts will make up an overwhelming % of the company's income given their graphics division is one of the few within AMD that consistently turns a profit. But I guess I actually know what "income" is and how its calculated. Given these parts sell for 50% higher price than any single-ASIC SKU (CPU or GPU) in the last 5 years, I think there's a good chance these parts will make up the bulk of their profit for the quarter.You really think AMD is turning some amazing profit on their free AR Bulldozer promos or happy meal priced APUs when they struggle to make a profit on a quarterly basis? There's break-even (90-95% of their revenue) and then there's parts like this that actually sell for a profit. They don't need to sell high volume on these parts when the ASP and margins are so healthy.
repoman27 - Tuesday, January 31, 2012 - link
Actually, you should try reading AMD's Q4 earnings report which was just posted here: http://www.anandtech.com/show/5465/amd-q411-fy-201...The graphics division only accounted for 8.4% of AMD's operating income for fiscal 2011, if you ignore the accounting monkey business regarding GloFo.
Of that 8.4%, about half is likely attributable to FirePro because the gross margins for professional and compute solutions are easily double that of consumer GPUs.
While the ASP's and gross margins on enthusiast cards are great compared to the high volume consumer stuff, they still represent a niche market, and realistically less than 3% of AMD's 2011 operating income.
chizow - Wednesday, February 1, 2012 - link
I have read it and it obviously doesn't include any significant Tahiti or 28nm parts, since they only started to ship the first few units for revenue for that Jan 7th 7970 launch.As stated in the article:
"while the first true 7000 series part (Tahiti) did not launch until 2012 and only started shipping for revenue very late into 2011. Still, it was enough to have a significant impact on AMD’s GPU ASP, increasing it over 2010’s ASP even with the limited number of new products."
Obviously projected revenue will be much higher with a full quarter at these prices.
But yes the rest of your post confirms my point, if you want to point to FirePro I can already guarantee you they will sell more 7970 consumer desktop parts than any FirePro parts using the same ASIC, we're not talking about Quadro here lol.
At $450-600, that's already a HUGE markup and increase in their gross margins compared to any previous single-ASIC desktop SKU, so its obviously going to result in a huge increase in profits.
And no you can't just discount that "GloFo" business, if the rest of the company loses money because of poor supplier/pricing decisions and selling prices and the other consistently makes money and represents the bulk of the company's income.
repoman27 - Wednesday, February 1, 2012 - link
Seriously, put down the crack pipe.Have you ever looked at the relative prices of consumer desktop parts vs. FirePro parts based on the same chip? Yes, they will sell a lot more of the consumer parts, and yet they will still make more profit on the fewer FirePro parts sold. So when AMD wholesales chips to partners so the partners can produce cards that end up retailing for $450-600, you believe their gross margins are higher than when they sell a FirePro V9800 directly to a retailer who turns around and sells it for $2800?
Why are you so convinced that the difference in retail release prices for the 7 series and 6 series is solely attributable to AMD expanding their gross margin? The 7 series is being offered for 50% more than the 6 series was, and yet the transistor count increased by over 62%. Not to mention that these are the first parts produced on the new 28nm node, so yields are probably less than stellar at this point, despite what TSMC might have us believe.
Furthermore, the GloFo business is germane to both the CPU and GPU divisions. Graphics accounted for less than a quarter of AMD's overall revenue for 2011 and only 8.4% of their income, no matter how you want to look at it. All I omitted was the one time charges that AMD took for the decrease in value of their stake in GloFo and the costs associated with their corporate restructuring.
No matter what you believe, 8.4 is a larger number than 91.6. Hang it up, you're flat out wrong.
chizow - Thursday, February 2, 2012 - link
No, you need to put down the "crack pipe."You're using past performance to define FUTURE revenue forecasts, which is what my statement was about. That's the whole point, the GPU division WAS disappointing in 2011, but ASP and profit increased year over year in Q4 based on the high ASP of the few Tahiti parts that shipped in December.
Obviously Tahiti parts will have a bigger impact on both numbers in Q1 '12 with a full 3 quarters and volume shipment at these high ASPs which is exactly what I stated.
As for why I think the difference in 7 and 6 series pricing was the difference in segment margins? Because I know how to read financial statements and MD&A. 11/12 months with DECLINING revenue and margins selling only 6 series and specifically cited by AMD caused by declining sales and ASP on their desktop and shortages of their Llano mobile parts. Then in Q4, despite declining revenue sequentially and y2y, their ASP, margins and profit increases. Do you think this is a result of their 6 series which spent the whole year declining in sales and margin, or the 7 series that sell for 50-100% more than their previous products? Hmmm.....
Now what do you think is going to happen with a full 3 quarters at the same prices for the graphics division? What do you think is going to happen to the company's financials given they are predicting a gloomy outlook with predicted 8% decrease in revenue sequentially? I can already guarantee you the graphics division will be profitable, maybe ~$100M, but the CPU division will at best break even if they don't post a loss. Which brings us full circle to the comment you and others apparently had issue with:
Actually I think these parts will make up an overwhelming % of the company's income given their graphics division is one of the few within AMD that consistently turns a profit.
repoman27 - Wednesday, February 1, 2012 - link
And clearly I meant to say that 8.4 is NOT a larger number than 91.6.Sunburn74 - Tuesday, January 31, 2012 - link
I think the power.consumption reductions are quite significant and eventually may be passed onto the mobile space.