ATI Radeon HD 5830 Brings Huge Performance, More Choice for DirectX 11 Gaming‏

ATI Radeon HD 5830 graphics card is based on the cut-down version of the code-named Cypress (RV870) graphics processor and features 1120 stream processors, 56 texture units, 16 render back ends, 256-bit GDDR5 memory controller and is clocked at 800MHz. ATI recommends its partners to install 1GB of 4.0GHz memory on the 5830 models graphics boards.

Its recommended price is so far specified vaguely as below $250. Considering the prices of Radeon HD 5850 and HD 5770, we expect the Radeon HD 5830 to cost $200-210.

Product page: ATI Radeon™ HD 5830 graphics product information

Articles :
X-Bit Labs

More AMD-based Lenovo laptops & AIO Desktop to come

Lenovo has announced two more mainstream laptops and an all-in-one desktop all built around AMD CPUs and graphics hardware.

Lenovo will aim the new G455 and G555 laptops at "mainstream customers," and it will outfit the systems with AMD Athlon or Turion processors and unspecified DirectX 10-class ATI graphics. These notebooks will also feature 16:9 wide screen displays, some Lenovo power management software, a "one-touch backup, repair and recovery tool," and cameras with facial recognition support.

The Lenovo G455 and G555 notebooks start at $449 and will be available in the U.S. beginning in March.

Meanwhile, the C315 all-in-one desktop will have a 20" touch-screen display with a 16:9 aspect ratio, and Lenovo will build it with a dual-core Athlon processor, 4GB of RAM, and Mobility Radeon graphics. Pricing will start at $649 when the C315 reaches U.S. in April.

Radeon HD 5570 launches at $79-85

AMD has now added a third sub-$100 graphics card to its DirectX 11 lineup. The new Radeon HD 5570 fits squarely between HD 5670 and HD 5450 with a $79-85 suggested price range.

AMD based the Radeon HD 5570 on the same 40-nm Redwood graphics processor that powers the 5670. Users will still get 400 stream processors, five texture units (for 20 texels/clock fill rate), two ROP units (for a total eight pixels per clock), and a 128-bit memory interface. However, the core clock speed has fallen from 775MHz to 650MHz, and instead of speedy 4Gbps GDDR5, AMD has limited the 5570's memory selection to 1.8Gbps DDR3.

As a result, floating-point number crunching power has fallen from 620 gigaFLOPS on the Radeon HD 5670 to 520 gigaFLOPS on the Radeon HD 5570, and memory bandwidth has dropped similarly from 64GB/s to just 28.8GB/s. These changes appear to have helped the 5570's power efficiency—AMD quotes a "typical" 38W at load, down from 61W. In turn, the reduced power consumption enables a half-height form factor and a smaller cooler. AMD tells us we could actually end up seeing passively cooled 5570s from
some card vendors.

Reviews:
AnandTech
Tom's Hardware
Legit Reviews

“Thuban” to Get Dynamic Speed Boost Technology

Advanced Micro Devices plans to implement a dynamic performance boost technology into its six-core processors known as Phenom II X6 “Thuban”.

The software is seriously behind the hardware and many applications still cannot take advantage of additional cores, but fully depend on clock-speeds. In order to provide maximum possible performance in such programs, developers of CPUs implement special dynamic performance boosting technologies that disable certain cores and overclock the rest.

When single-thread performance is needed most, Thuban processors will automatically disable idle cores and overclock the remaining engines to the maximum possible level that is determined by general thermal design power. The technology will be completely hardware-based, hence, will work in any operating system that supports six-core chips. The technology is presently called “C-state performance boost”, however, it is more than likely that AMD will introduce a better sounding marketing name when it launches six-core chips in the second quarter of the year.

ATI Radeon HD 5450 "Cedar"

Four chips in 6 months reaches its end today, with the launch of the final chip in AMD’s Evergreen stack: "Cedar". Cedar, the baby of the family, will be powering AMD’s bottom-tier cards. Today we’re seeing the the first of what we expect will be a couple of Cedar cards with the launch of the Radeon HD 5450. The ATI Radeon HD 5450 graphics card delivers a state-of-the-art HD multimedia and game experience at a value price. You can expect to find listed soon for $49-59.

The Radeon HD 5450 has 292 million transistors, 80 stream processors, two texture units (each capable of filtering four texels per clock cycle), and a single ROP that can push out four pixels per clock. Radeon HD 5450 graphics cards will have a 650MHz core clock speed, up to 1GB of DDR2 or DDR3 memory with a 1.8Gbps top data rate, and 64-bit memory interfaces. (The $49 part will only have 512MB of RAM, however.)

AMD has a product page for their new Radeon 5450. Radeon HD 5450 Reviews:
AnandTech
Hot Hardware

Zosma is the new AMD 45nm Quad Core

Delta Leonis is a star in the constellation of Leo and natives calls it "Zosma". Some even calls it Zozma or Duhr. AMD’s next generation 45nm quad core is codenamed Zosma.

Expected to be released as early as Q2 2010, it is set to launch together with three new Hexa cores Phenom II X6 "Thuban". Some suspected that Phenom II X4 960T 95W TDP quad-core is a six-core with two cores disabled.

We don’t know any clock speeds but it is a 45nm SOI part, supports DDR3 1333 and fits in AM3 motherboards.