The Radeon X1300 Pro is certainly much faster than the GeForce 7300GS as it proved in the real-world benchmarks. Sadly, the 64-bit memory bus of the GeForce 7300GS limited its performance quite severely. This is really the old limitation of the card, had NVIDIA gone with a 128-bit memory controller this GPU would have been far more impressive. This latest generation of graphic cores has been crippled a number of times by limited memory buses. The Radeon X1600XT is another perfect example, unable to compete with the 6800GS due to a 128-bit memory bus.
This really hurt the GeForce 7300GS, making it more than 50% slower than the Radeon X1300 Pro in some tests. The 1024x768 results with No AA/AF enabled saw the Radeon X1300 Pro 28% faster in Far Cry, 16% faster in FEAR, 17% faster in UT2004 and 18% slower in UT2004. The 4xAA/8xAF margins were even bigger, for example the GeForce 7300GS was 55% slower in UT2004 once the AA/AF quality settings were enabled. These margins allowed the Radeon X1300 Pro to deliver playable performance with slightly higher quality settings enabled, where as the GeForce 7300GS could not