We’ve never been major advocates of GPU overclocking, as the minor gains you achieve often don’t justify the added heat and instability. But there’s a clear difference between Billy Joe doing a maximum overclock on his GPU and a vendor overclocking the part at the factory.
So when XFX offered up its XXX Edition of the already-fast Radeon HD 5870, we were naturally curious. XFX pushes the HD 5870 to 875MHz (3 percent over the stock 850MHz) and juices the memory to 1,300MHz (8.3 percent over the stock 1,200MHz). At first blush, a 3 percent core overclock seems minimal. Given that the card costs about $430, versus about $405 for the stock XFX variant, is it worth the extra jingle?
To find out, we compared the performance of the XXX Edition to a standard XFX Radeon HD 5870, which is a stock card in every respect. Save for clock speeds, the two cards are identical: memory (1GB), ports (two DVI, one DisplayPort, one HDMI), and the reference cooling system. Because of the speed bumps to the XXX Edition’s core and memory clocks, its system idle power usage varies from the stock card, reaching 148W versus 141W.
In exactly one week from now, AMD is expected to launch its ATI Radeon HD 5850 and 5870 videocards, which as it turns out will be a precursor of more 5000 series cards to come. And you won't have to wait long, either.
According to news and rumor site DigiTimes, un-named sources at graphics cards makers have been chirping about a new series of ATI Radeon HD 5700 GPUs just around the corner. Codenamed Juniper XT and LE, the Radeon HD 5770 and 5750 should be in stores sometime in October. Both will come with 1GB of GDDR5 video memory on a 128-bit memory bus and support the recently announced multi-monitor Eyefinity technology.
Then in November, AMD will update its flagship offering with the R800-based Radeon HD 5870 X2. The reason for the slight delay, says Fudzilla, is that AMD is trying to figure out how to power and cool the dual-GPU card, which reportedly carries a TDP of 376W. By comparison, the HD 4870 X2's rated TDP is 286W.
In addition to its desktop lineup, AMD will also port its HD 5000 series over to notebooks, including the ATI Mobility Radeon 5400 for entry-level systems, 5600 for mainstream, 5700 for performance, and 5800 for high-end laptops.
ATI’s latest in their Radeon HD line has finally been confirmed as the HD 4890 X2.
While initially AMD maintained the notion that there wasn’t a market for anything beyond the HD 4870 X2 because of the card being absolutely top of the line, they’ve still gone ahead with the 4890 X2.
Reportedly, the new graphics card will have two GPUs running at least 1GHz per core, and depending on the SKU a customer buys, they can expect 2GB or 4GB of memory. Unfortunately, that’s the most specific information currently available.
No word yet on pricing or availability on the new powerhouse, but it is expected that Nvidia will follow this up with a new ultra high-end offering of their own.