AMD Preps Radeon HD 3830
March 21, 2008 11:27 AM
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(Source: Tech Report)
AMD Radeon HD 3830 to compete with NVIDIA 8600GTS in price and performance
There's been a great deal of news regarding AMD's HD 3800 series of high-end desktop video cards including predictions of
upcoming price cuts
to compete with NVIDIA's 9600 GT mid-range product. The two models AMD currently offers in this high-end Radeon line of graphics cards are the HD 3850 and HD 3870.
To better compete with
the recently launched GeForce 9600 GT
, AMD will launch a new model in the HD 3800 series with a more modest configuration than its two older counterparts.
AMD's Radeon HD 3830 will be based on the RV670 core and will feature a 128-bit memory bus, potentially providing roughly half the memory bandwidth of the HD 3850 and 3870 depending on the type and speed of memory used.
All other features of the 55nm RV670 core are still included: DirectX 10.1, PCIe 2.0 and UVD. The GPU still features 320 stream processors like the HD 3850 and HD 3870 revisions.
According to recent reports, the HD 3830 will feature up to 256 MB of memory and come with 320 stream processors as well as 16 texture filtering units and 16 raster operators to match the HD 3850/3870 models. This is compared to the 32 stream processors, 16 texture filtering units and 8 raster operators of the 8600GTS's G84 core.
Pricing of the Radeon HD 3830 scheduled on roadmaps in the $120-130 range, however with Radeon HD 3850 prices quickly approaching that, 3830 street prices could easily hit the $100 price point.
AMD roadmaps peg the launch of Radeon HD 3830 at mid-April, with initial shipments likely not hitting the U.S. until several weeks later.
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3/21/2008 6:21:31 PM
64 5-way SIMD units. The problem with this design is that they are dependant greatly on how well the driver can make sure each unit is busy, where the nV scalar units always operate at 100%, 20-100% efficieny is the range of the R6x0 units. 40-60% efficiency is more prevalent.
3/21/2008 9:33:03 PM
if you are going to correct someone at least get it right...
R600/RV670 has 20 16 wide simd units organized as 4 sets of 5 simd units.
G80/G92 doesn't have any scalar units. It has 16 8 wide SIMD units using time division scheduling to handle multi-component operations.
Neither design has "Scalar units" and neither design has more than low double digits processors. With the actual number of processors being 4 for R600/RV670 and 16 for G80/G92.
And if Nvidia could always operate at 100% they'd all be in vegas every day living the good life instead of stuck in front of a computer trying to do better.
3/22/2008 12:00:08 AM
Point is a paper comparison of Nvidia/ATI cards is, well pointless. Only benchmarks can tell you what one is better and even then *gasp Drivers are always changing.
"I'd be pissed too, but you didn't have to go all Minority Report on his ass!" -- Jon Stewart on police raiding Gizmodo editor Jason Chen's home
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