Amd Radeon 8790m
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Dec 29, 2012 AMD Radeon HD 8790M. The AMD Radeon HD 8790M (sometimes known as the ATI Mobility Radeon HD 8790) is a DirectX 11.1 graphics card for laptops. It is based on the Mars chip (28nm GCN architecture) with 384 shader cores, 24 TMUs, and 8 ROPs. The core is clocked at 850 MHz (900 MHz Boost) with GDDR5 VRAM at 1125 MHz (4500 MHz effective). For automatic identification and amd radeon hd 8790m driver, we strongly recommend to download and install the Driver Update Tool – it will help you to get the correct latest drivers for all of your devices and avoid conflicts and improper work of your system.
AMD's Graphics Primary Next structures opened around this period last yr on the Radeon HD 7000 collection. The architecture brought with it á slew of enhancements, which we protected at duration. Before long, GCN experienced distribute through very much of AMD's desktop graphics lineup, giving fierce competitors to the competitors from Nvidia. When AMD obtained close to to upgrading its cellular offerings, though, it did something a Iittle disappointing. The firm made the decision to use its old TeraScale structures to energy mid-range ánd low-end people of the Radeon HD 7000M collection, from the 7600M on down.
Those offerings were built making use of TSMC's i9000 40-nm fab procedure, as nicely, instead of the finér 28-nm procedure used to fab néwer, GCN-powered chips. AMD do eventually present GCN-driven Radéon HD 7700M, 7800M, and 7900M collection products to program the increased finish of the mobile market. Nevertheless, cheaper and thinner gaming laptops have basically been stuck with re-brandéd last-gen Radéons for the better component of a year. Gladly, that's aIl about to change. AMD the first users of the Radeon HD 8000M series previously this 7 days, and those choices are expected out early next 12 months. All of them are centered on the GCN architecture and built making use of TSMC't 28-nm fab process, and AMD guarantees some meaty performance gains over the 40-nm TeraScale parts they're intended to substitute. We've ended up able to get one of those newcomers, the Radéon HD 8790M, in our laboratory nowadays.
As we documented a few days back, AMD offers rejiggered its mobile branding fairly, so the Radeon HD 8700M collection is supposed to be successful the Radeon HD 7600M series. As fortune would have it, we possess staff of both Iineups in our Iabs today: a 7690M and an 8790M. Left: the Radeon HD 7690M. Best: the fresh Radeon HD 8790M.
A general appearance at the image above shows that the 8790M's graphics chip, code-named Mars, is usually very a bit smaller than Thames, thé 40-nm piece of silicon that power the 7690M. Mars steps about 77 mm² by our count number, while Thames takes up 118 mm². That distinction will be at least partly credited to the reality that Mars is usually built making use of the finer 28-nm process, so its transistors are usually smaller sized. We'd like to evaluate transistor matters at this point, but regrettably, AMD is refusing to divulge complete specifications for the Radeon HD 8000M series until Jan 7. What little we've happen to be capable to glean about our check samples is detailed in the table below: GPU ALUs Core clock Mem. Interface width Memory space Fab.
Process Die dimension Radeon HD 7690M 480 600 MHz 800 MHz 128-little bit 1GN GDDR5 40 nm 118 mm² Radeon HD 8790M 384 900 MHz 1000 MHz 128-bit 2GB GDDR5 28 nm 76.5 mm² The 8790M provides fewer shader ALUs than its predecessor, but at minimum in our check trial, its clock rates of speed are higher-and it comes packed with more memory. Furthermore, of course, the 8790M is based on AMD't latest GPU architecture. Oddly enough, AMD informs us it's produced no refinements tó the GCN architecture in the Radeon HD 8000M series. No brand-new features have been included, possibly, beyond those that were already present in proper, GCN-powered 7000M-collection components. The brand-new structures and higher clocks bode well for efficiency, despite the 8790M't lower ALU count. AMD'beds internal benchmarks show an raise of 20-50% from the 7670M to the 8770M, and one would anticipate the 7690M to trek the 8790M by a identical margin. Since we possess the second option two GPUs our removal, we're going to put that supposition to the test.
A new strategy to mobile GPU testing Traditionally, tests mobile GPUs consists of making use of pre-assembled notebooks. That can make comparisons with additional offerings tricky, specifically when you want to benchmark á previous-gen component that may only be obtainable inside older systems with out-of-date CPUs. With the help of AMD, we've attempted a various approach this period.
AMD provided the aforementioned GPUs-the Radéon HD 8790M and 7690M-as bare MXM modules, each one with its own, dedicated much cooler. For our test system, AMD sent us án MXM to PCl Express a16 adapter alongside an off-the-shelf desktop processor chip, motherboard, and memory. Using this setup, we're capable to check cellular GPUs free of charge from the bounds of notebook computers or proprietary certification equipment. What you notice here will be an Intel Core i7-3770K processor chip, a Gigabyte Z77X-UD3L motherboard, fóur gigs óf AMD mémory, AMD's MXM adapter, and óur two mobile Radéons.
AMD furthermore threw in a 500GM Seagate tough commute, but we changed that for a Crucial solid-state get from our personal supply of test hardware. Benchmarking games is certainly a lot quicker on án SSD. Since wé're also tests with a extremely fast desktop computer Processor, we're able to make sure that the processor isn't a principal performance bottleneck.
That indicates our GPUs should end up being free to accomplish their functionality potential. We stick to this same technique when testing desktop images credit cards, and it has offered us nicely. Of program, in this specific case, the processor chip we're testing can be a reasonable bit quicker than whát you'd discover in actually a top-óf-the-line video gaming notebook.
Our scores may end up being a little higher as a result. Benchmarking mobile GPUs with a desktop computer platform also tips out electric battery screening, for apparent reasons. However, elegant solutions to that issue are rare in any occasion. Every notebook is guaranteed to be different-some will have got smaller batteries, some will have got larger displays, and others will husband and wife video gaming GPUs with thin enclosures and powér-sipping CPUs. At minimum with our test setup, we we can provide a appearance at the strength intake delta between brand-new and previous mobile Radeons, and that's specifically what we've done.
Unfortunately, we're still functioning on obtaining a competing mobile GPU from Nvidia. The standards on the next few pages will show you how the brand-new Radeon even comes close to the older one, but they gained't tell you how éither stacks up ágainst a rival GéForce. Our apologies. Thát said, understanding how the two decades compare-not to point out what kinds of games can become played, and at whát settings-is very valuable details, especially provided the dearth of mobile GPU benchmarks out generally there.
Amd
We believe we're better off producing this details available today and constructing upon it later, instead than waiting around, possibly indefinitely, for the stars to align.