Quake 4, UT2004
Even with the lowest in-game quality settings, Quake 4 was too much for the VisionTek Radeon X1300 at 1024x768, as the card averaged just 38fps. This was easily bettered by the Gigabyte Radeon X1300 Pro which produced 78fps on average; thats 105% more performance from the $60 Gigabyte Radeon card.
UT2004 is one of the few older games we still benchmark with that can run on some integrated graphics engines. That said, with low quality settings enabled the PCI Radeon X1300 did power through this game at even 1280x1024. However the Gigabyte Radeon X1300 Pro was still more than 100% faster, rendering over 150fps at the same resolution.