http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/ Engadget Comments for NVIDIA pops out five new mobile GPUs to fill invisible gaps in its 200M series lineup http://www.engadget.com/media/feedlogo.gif http://www.engadget.com en-us Copyright 2012 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 10:27AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 10:39AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 10:29AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 11:40AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 10:32AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 10:43AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 10:50AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/
The GTS250M (128-bit, 1GB GDDR5) has the same performance as the old 8800M GTX. It's basically the 8800M GTX in 40nm - same clockspeeds (500/1250/1600), architecture and number of shader cores (96). The only difference is the 128-bit interface, which is compensated for by the GDDR5 memory.

It has a 28W TDP, compared to 65W of the 8800M GTX. ]]>Jun 15th 2009 11:21AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/
I owned a 8600m GT the worst card i ever seen... I wont touch 128 bit ever again! Loads of memory are useless, unless you have enough bus width to use it...]]>Jun 15th 2009 12:22PMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/
GDDR5 has approx twice the memory bandwidth of GDDR3, so it pretty much exactly compensates for the 128-bit memory bus difference. This (GTS 250M) is effecitvely a 40nm 8800M GTX (or 9800M GT), no more, no less.

GTS260M is a little faster still. ]]>Jun 15th 2009 1:05PMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 2:02PMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/
Memory Bandwidth = Bus Width * Memory Clock * Data Rate

GDDR3 has Double Data Rate (2) and GDDR5 has Quad Data Rate (4) so therefore:

8800M GTX / 9800M GT = 256 (bus width) * 800 (base memory clock) * 2 (data rate) = 51.2 GB/s (memory bandwidth)
GTS 250M = 128 (bus width) * 800 (base memory clock) * 4 (data rate) = 51.2 GB/s (memory bandwidth)

Therefore, as far as memory performance is concerned, they are equivalent. And then if you compare the other specifications (shaders, core clock, shader clock, and gigaflops) they are also equivalent. So thus, the GTS 250M is essentially a 40nm 8800M GTX / 9800M GT with more than half the TDP. Now if 1GB of VRAM is really helpful with 51.2 GB/s memory bandwidth is a different question (the performance gain is neglible and usually only seen at high resolutions), but a 128-bit bus with GDDR5 is equivalent to a 256-bit bus with GDDR3. Also, the GTS 250M is essentially a die-shrink of the 9800M GT with a 128-bit bus and GDDR5 instead of a 256-bit bus and GDDR3 (to lower TDP and manufacturing costs), and the 9800M GT is essentially a rebrand of the 8800M GTX.]]>Jun 15th 2009 5:41PMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 10:50AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 10:52AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 10:58AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 11:57AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 10:53AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/
It's just more....money!
]]>Jun 15th 2009 11:08AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 10:55AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 12:01PMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 12:09PMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 12:42PMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/
Thats because the idiots at Engadget think a 9400M is a good card ! it's better than Intel Extreme but thats about it.]]>Jun 15th 2009 3:07PMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 5:01PMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 16th 2009 10:33AMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jun 15th 2009 11:04PMhttp://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/http://www.engadget.com/2009/06/15/nvidia-pops-out-five-new-mobile-gpus-to-fill-invisible-gaps-in-i/Jul 28th 2009 1:37AM