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| [Mar 18, 2011, 10:09 am ET] - Share - Viewing Comments |
Farewell to DirectX on bit-tech.net hears from Richard Huddy, head of GPU developer relations at AMD, who states that DirectX is holding back game performance. He blames this on consoles, though it seems logical that this would probably be less of an issue for AMD if they manufactured CPUs or GPUs for the Xbox 360 or PlayStation 3. Though programming more directly for the hardware on two different GPU architectures would be more difficult, he claims the most common request he gets from developers is to "make the API go away." Here's a bit: 'It's funny,' says AMD's worldwide developer relations manager of its GPU division, Richard Huddy. 'We often have at least ten times as much horsepower as an Xbox 360 or a PS3 in a high-end graphics card, yet it's very clear that the games don't look ten times as good. To a significant extent, that's because, one way or another, for good reasons and bad - mostly good, DirectX is getting in the way.' Huddy says that one of the most common requests he gets from game developers is: 'Make the API go away.'
'I certainly hear this in my conversations with games developers,' he says, 'and I guess it was actually the primary appeal of Larrabee to developers – not the hardware, which was hot and slow and unimpressive, but the software – being able to have total control over the machine, which is what the very best games developers want. By giving you access to the hardware at the very low level, you give games developers a chance to innovate, and that's going to put pressure on Microsoft – no doubt at all.'
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| 26. |
Re: AMD Knocks DirectX |
Mar 18, 2011, 16:11 |
Eric |
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Blue wrote on Mar 18, 2011, 15:37:
Creston wrote on Mar 18, 2011, 11:00:
though it seems logical that this would probably be less of an issue for AMD if they manufactured CPUs or GPUs for the Xbox 360 or PlayStation 3
Errr.... am I missing something? 
http://interviews.teamxbox.com/xbox/1458/The-Power-of-the-Xbox-360-GPU/p1/
"Fast forward to 2005, Microsoft revealed that the Xbox 360 will feature a custom ATI graphics processor that clocks in at a blistering 500 MHz, with 48-way parallel floating-point dynamically scheduled shader pipelines and 10 MB of embedded RAM."
http://en.wikipedia.org/wiki/XCGPU#XCGPU
The Xbox 360 S introduced the XCGPU, which integrated the Xenon CPU and the Xenos GPU onto the same die, and the eDRAM into the same package. The XCGPU is the first mass marketed chip that combines a desktop class CPU, a powerful GPU, memory controllers and IO. It also contains a "front side bus replacement block" that connects the CPU and GPU internally in exactly the same manner as the front side bus would have done when the CPU and GPU were separate chips, so that the XCGPU doesn't change the hardware characteristics of the Xbox 360.
XCGPU contains 372 million transistors and is manufactured by GlobalFoundries on a 45 nm process. Compared to the original chipset in the Xbox 360 the combined power requirements are reduced by 60% and the physical chip area by 50%.[8][9]
The Xenos GPU is an ATI design. |
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