How much memory does the Nvidia Quadro NVS 140M have?

[ash27]

Hello,

On the R61 thinkpad, how much memory does the Nvidia graphics card Quadro NVS 140M have?  128 mb?  256 mb?  

Thanks,
Ash

[vkyr]

Welcome to the forum! - AFAIK, it has 128 MB.

[carbon_unit]

I believe it has 128mb onboard and the ability to "borrow" system ram to add more if necessary.

[limonetti]

My R61 recognizes definitively 256MB dedicated Video-RAM and another 256MB shared Memory, makes 512MB.

[lead_org Microsoft MVP Contributor]

The Nvidia Quadro NVS 140 m only have 128 mb of ram. You are probably using XP pro and not Vista. 

[limonetti]

No. It's the Linux Model.

The NVS140 has been produced with up to 256MB dedicated Video RAM. lspci lists 256MB dedicated Memory which is doubled by shared memory. Makes 512MB.

[lead_org Microsoft MVP Contributor]

i dont think Thinkpad was ever optioned with a 256 mb vram NVS 140M, i have a R61 that was produced in the end of 2008 with the NVS 140M, and it only has 128 mb of vram. You can check with Everest or GPU-Z. 

[PaulinMaryland]

Mine says 512MB. I've always assumed that this is full onboard VRAM.

[lead_org Microsoft MVP Contributor]

The win xp can't tell which part is the GPU's own memory and which part is borrowed. 

Just like Win XP will list GMA950 as having 224 mb of vram, and X3100 with 380 mb of vram, when none of them actually have any dedicated vram, they simply borrow it from the actual laptop ram memory. 

[PaulinMaryland]

Darn, I see your point. So I guess that my R61' CPU can use only 2.5GB out of the 3GB that Lenovo installed. Is there a way to tell XP (or the 140M), "Thanks, but no, thanks; I don't want quite so much system RAM"?

I found this confirmation that the 140M topped out at 256MB:

The Quadro NVS 140M supports up to 256MB of dedicated video memory (though many notebook vendors are opting for just 128MB, including Lenovo) on a 64-bit memory interface, uses PCI Express x16, supports OpenGL 2.1 (and DirectX 10.0 / Shader Model 4.0), and is capable of handling VGA, DVI, LVDS, HDTV, and HDMI connections (this GPU is also HDCP capable). The NVIDIA 140M is the fastest Quadro NVS in the mobile series that can be passively cooled. Its power consumption is just 10 Watts. This mobile GPU also supports NVIDIA's nView, PureVideo HD, and TurboCache technologies.