In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 6150 LE are massively better than the Intel GFX 2560x1440.

The GFX 2560x1440 has no core clock speed set, so any comparison between Texture and Pixel Fill Rates is not currently possible.

The GeForce 6150 LE was released over three years more recently than the GFX 2560x1440, and so the GeForce 6150 LE is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GFX 2560x1440 when running the latest games.

Both GPUs exhibit very poor performance, so rather than upgrading from one to the other you should consider looking at more powerful GPUs. Neither of these will be able to run the latest games in any playable way.

The GFX 2560x1440 and the GeForce 6150 LE have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The memory bandwidth of the GFX 2560x1440 and the GeForce 6150 LE are the same, which means the GFX 2560x1440 and the GeForce 6150 LE have equal limitations when it comes to graphical data transfer.

The GeForce 6150 LE has 2 Shader Processing Units but the GFX 2560x1440 does not have an entry, so the two GPUs cannot be reliably compared in this area.