What is a AMD Radeon R9 285?
AMD’s latest graphics card, a Radeon R9 285, has emerged months after a rest of a firm’s tide operation debuted, though there’s a good reason for that – it uses a mint core, dubbed Tonga.
The R9 285 is designed to reinstate a R9 280 as good as pierce a quarrel to Nvidia’s GeForce GTX 760, and it should play any diversion during 1080p and 1440p – nonetheless 4K will expected be over a abilities. Price-wise, a several models of a R9 285 cost between £170 and £190 – a same arrange of money you’ll compensate for a GTX 760.
SEE ALSO: Best Gaming Headsets
AMD Radeon R9 285: Under a Hood
The R9 285 is a usually label to now use a Tonga core. It’s a mid-range core, though it shares a essential partial of a design with AMD’s high-end 290-series parts, with a 1,792 tide processors separate into a party of shader engines. That means a R9 285 has double a engines of a 280 it replaces – a pierce that should urge opening in a horde of areas, from geometric and tessellation opening to ubiquitous discriminate tasks.
Tonga’s high-end DNA bodes good for gaming performance, and that’s not a usually considerable statistic inside this GPU. AMD says there are 5 billion transistors inside, that is some-more than a 4.3 billion inside a R9 280 – and roughly 1.5 billion some-more than Nvidia’s GTX 760 offers.
Elsewhere, a 285’s mid-range intentions are done obvious. The 918MHz core time is a lowest of any mid-range or top-end AMD card, and it’s also behind a 980MHz core of a GTX 760. The memory’s 1,375MHz time bests a 1,250MHz of a R9 280, though a new 285 has 2GB of GDDR5 memory with a 256-bit train – a poorer charity than a 3GB, 384-bit R9 280. That means a tip memory bandwidth of 176GB/s, that can’t contest with a 240GB/s of a comparison GPU.
SEE ALSO: GeForce GTX 750 Ti vs Radeon R7 265
The R9 285 is still built on a informed Graphics Core Next architecture, though this third iteration has been softened opposite a board. There’s improved support for 4K H.264 video playback, transcoding is some-more efficient, and AMD says that lossless application creates for some-more fit memory handling.
This label also has a latest CrossFire controller, so multi-GPU setups don’t need overpass connectors – all goes by a PCI-Express slot. The Mantle API and TrueAudio are both supported, nonetheless their advantages will usually be apparent when some-more developers are on-board with both programmes.
On a outward a R9 285 doesn’t chuck adult any surprises. Card length varies depending on that house partner we use, though a R9 285 is a identical length to a R9 280 and GTX 760 – so you’re looking during a 270mm-300mm PCB. The R9 285 requires dual six-pin energy connectors.
SEE ALSO: Best Monitors Round-up
How We Tested
We’ve sealed and installed 5 games for this GPU test. Battlefield 4, Bioshock Infinite and Crysis 3 all lapse from a prior reviews, and we’ve combined Metro: Last Light and Batman: Arkham Origins to a mix. We’ve tested during 1,920 x 1,080, 2,560 x 1,440 and even 3,840 x 2,160 to see that label is best opposite single-screens – and to check if any of them can hoop 4K.
We’ve used 3D Mark’s Fire Strike exam and 4 Unigine Heaven benchmarks to exam fanciful performance, and we’ve taken idle and bucket temperatures and energy mandate to see that label is a coolest and many frugal.
Our exam supply consists of an Asus X79-Deluxe motherboard, Intel Core i7-4960X processor, 16GB of RAM and a 1TB tough disk.
To get prices for any label we visited www.scan.co.uk and remarkable down a cheapest stock-speed label we could find, nonetheless we will be referring to a several overclocked and tweaked models accessible for any GPU, that will be some-more expensive, after on in a review.