Archive for May, 2010

Mobile Fermi!

Wednesday, May 26th, 2010

nVidia just presented GeForce GTX 480M Fermi Mobile GPU. It’s more of a underclocked GeForce GTX 465 (to be presented soon), and will offer typically 50% of a GeForce GTX 480 desktop performance-level.

Still it’s largely over the last-generation GeForce GTX 285M that was just a GeForce 9800GTX in disguise, showing that GT200 GPU (GTX260..295) is just inadequate to be used on mobile platforms or downsized for middle-level gamer videocards!

The most interesting thing is not the gaming performance, and it will be impressive, on a par with my desktop GTX 260 or better, but Fermi being available on (huge) laptops. With real-world OpenCL & CUDA performance-level that is really impressive.

If you compare this laptop GPU to desktop CPU, for example with Folding@home distributed supercomputing projet, created for CPU and ported to GPU on nVidia’s CUDA and ATI’s brooke(n) technology you will have to compare with:

- 3 desktop Core i7 high-end CPU (or 6 laptop Core i7 Mobile CPU!)

- 2 Radeon 5870 desktop GPU (or a 5970 desktop GPU)

The raw numbers are more impressive on Radion HD 5xxx GPU, but the real-life OpenCL performance (and CUDA too) is almost unbeatable when you took CPU-developped programs ported to GPU!

And it’s a mobile GPU! I would like to see a PC card with it, to consume 2X less than my GTX 260 while offering better performance-level and Fermi computing ability :-)

GeForce GTX 465 Fermi

Wednesday, May 5th, 2010

Fermi for the rest of us, this is mission for GTX 465, before GF 104 based videocard are available, nVidia seems to have decided to push a -relatively- affordable GTX 465, based on GF 100 as GTX 480 & 470.

352 SP, 256bits memory-bus, 1GB video memory, with a tag price around $249, it’s a GTX 2xx replacement that will offers improved gaming experience, and is the soft-spot (in terms of price and performance) for CUDA and OpenCL developpers. This TX 465 is what I was waiting for to upgrade my GTX 260 and to go to the Fermi path, that is really promising! (naturally I will keep a laptop with GeForce 9400M and 9600M GT)

It should be unveiled at Computex, early june, for an availability this summer.

There’s one bad new: as with  GeForce GTX 2xx series, that were not declined, GF 104 GPU seems to be late, really late, and may even never show. nVidia creates good designs but is unable to downsize them for the rest of their videocard line. Fermi may stay reserved for high-end videocard and the rest of us will use them same G80-derived GPU, without Fermi capabilities (2006-derived design!)