In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 6150 LE are massively better than the Nvidia Quadro4 980 XGL.

The GeForce 6150 LE has a 125 MHz higher core clock speed than the Quadro4 980 XGL, but the Quadro4 980 XGL has 7 more Texture Mapping Units than the GeForce 6150 LE. As a result, the Quadro4 980 XGL exhibits a 2 GTexel/s better Texture Fill Rate than the GeForce 6150 LE. Neither of these GPUs support DirectX 10 or higher, so Texture Rate holds more weight than when comparing more modern GPUs.

The GeForce 6150 LE has a 125 MHz higher core clock speed than the Quadro4 980 XGL, but the Quadro4 980 XGL has 3 more Render Output Units than the GeForce 6150 LE. As a result, the Quadro4 980 XGL exhibits a 0.8 GPixel/s better Pixel Fill Rate than the GeForce 6150 LE. Neither of these GPUs support DirectX 9 or higher, so Pixel Rate holds more weight than when comparing more modern GPUs.

The GeForce 6150 LE was released over a year more recently than the Quadro4 980 XGL, and so the GeForce 6150 LE is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the Quadro4 980 XGL.

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 Quadro4 980 XGL has 128 MB video memory, but the GeForce 6150 LE does not have an entry, so the two GPUs cannot be reliably compared in this area.

The Quadro4 980 XGL has 4 Shader Processing Units and the GeForce 6150 LE has 2. The two GPUs are based on different architectures, but deliver an equivalent shader performance. To compare, we must continue to look at the memory bandwidth, Texture and Pixel Rates. In this case, the Quadro4 980 XGL has 2 GTexel/s better Texture Fill Rate, 0.8 GPixel/s better Pixel Fill Rate, and 5.2 GB/sec greater memory bandwidth, so should have a marginally faster performance than the GeForce 6150 LE.

The GeForce 6150 LE transistor size technology is 60 nm (nanometers) smaller than the Quadro4 980 XGL. This means that the GeForce 6150 LE is expected to run massively cooler and achieve higher clock frequencies than the Quadro4 980 XGL. While they exhibit similar graphical performance, the GeForce 6150 LE should consume less power than the Quadro4 980 XGL.