Feeds

AMD rolls out DirectX 10.1 Radeon HD 3800 GPUs

Top-of-the-range peformance at mid-range price

High performance access to file storage

AMD has launched 'RV670', the - world's first - 55nm GPU it hopes will reverse the growing gap between its sales and those of Nvidia.

RV670 will go on sale today as the ATI Radeon HD 3850 and 3870 - effectively what would once have been called 'Pro' and 'XT' variants, respectively. Both 192 square mm dies contain 666 - oh err - million transistors in a , many of which go to form the chips' 320 Stream processors. The 3850 is clocked at 670MHz, while the 3870 will run at 775MHz or more - there's room for card suppliers to up the rate, AMD said.

AMD ATI Radeon HD 3850
AMD's HD 3850: single slot

The 3850 will appear on PCI Express 2.0 boards equipped with up to 256MB of GDDR 3 memory clocked at 900MHz. The 3870 supports 512MB of GDDR 4 running at 1.2GHz. The latter's higher core and memory clock frequencies mean it's a two-slot product with a peak power consumption of around 106W.

The 98W-peak 3850-based boards - also PCIe 2.0 - can get away with a fan slim enough for the card to take up a single slot's worth of motherboard space.

Reference cards for both chips come with a DIN-style HDTV output port and two dual-link DVI ports. The GPUs support HDCP copy-protection, allowing them to feed HDMI displays via a DVI-to-HDMI adaptor that also pulls 5.1-channel audio through the HDTV port.

Once again, the GPUs contain AMD's UVD video processing core, the same basic tech that was introduced with the Radeon HD 2600 but here optimised for the new chips' PCIe 2.0 bus speeds.

Both GPUs integrate AMD's PowerPlay technology to reduce overall power consumption and fan noise. Batches of Stream processors can be powered down and the core clock speed throttled according to demand, segmented into three modes: general use, light gaming and intensive gaming. The latter has the cards going flat out, but the first two modes cut the power consumption down to around 34W and 51W for the 3780, and 26W and 39W for the 3850, AMD claimed.

With the RV670 essentially a die-shrink of the old Radeon HD 2900 core, AMD anticipates getting more of the new chips out the door from each wafer. As such, it expects them to appear on boards in the $150-200 price band despite offering higher performance than AMD's current top-of-the-line GPUs.

High performance access to file storage

More from The Register

next story
Report: Apple seeking to raise iPhone 6 price by a HUNDRED BUCKS
'Well, that 5c experiment didn't go so well – let's try the other direction'
Microsoft lobs pre-release Windows Phone 8.1 at devs who dare
App makers can load it before anyone else, but if they do they're stuck with it
Zucker punched: Google gobbles Facebook-wooed Titan Aerospace
Up, up and away in my beautiful balloon flying broadband-bot
Nvidia gamers hit trifecta with driver, optimizer, and mobile upgrades
Li'l Shield moves up to Android 4.4.2 KitKat, GameStream comes to notebooks
AMD unveils Godzilla's graphics card – 'the world's fastest, period'
The Radeon R9 295X2: Water-cooled, 5,632 stream processors, 11.5TFLOPS
FOUR DAYS: That's how long it took to crack Galaxy S5 fingerscanner
Sammy's newbie cooked slower than iPhone, also costs more to build
Sony battery recall as VAIO goes out with a bang, not a whimper
The perils of having Panasonic as a partner
NORKS' own smartmobe pegged as Chinese landfill Android
Fake kit in the hermit kingdom? That's just Kim Jong-un-believable!
Gimme a high S5: Samsung Galaxy S5 puts substance over style
Biometrics and kid-friendly mode in back-to-basics blockbuster
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
HP ArcSight ESM solution helps Finansbank
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.