Xbox 360 slim CPU difference?

Major differences between old Xbox 360 and Xbox 360 slim is on its CPU and GPU  where in Xbox 360 slim use 45 nanometer design with integrated CPU and GPU. This make total heat produce in Xbox 360 slim smaller so make possibility broke due to 3RRoD as happened in previous type.

Where the HANA-based video processor remains the same on the new Xbox 360 S model. The new CPU/GPU hybrid chip is built on a 45nm process technology from Chartered/GlobalFoundries and marks a significant change in the design of the system as a whole. The first Xbox 360s were built using 90nm processors (PowerPC) and 90nm GPUs (ATI Xenos) and over the years we have seen revisions of 65nm CPUs and 80nm GPUs, 65nm CPUs and 90nm GPUs and then eventually down to 65nm for both CPU and GPU with the Jasper motherboard. The new Valhalla motherboard used in the Xbox 360 S combines the CPU and GPU onto a single chip.So we can say Xbox 360 slim CPU is different with old Xbox 360 in architecture.

But how about its performance? Does Xbox 360 slim have more powerful performance?

 Sadly I can say no improvement on performance in Xbox 360 slim, all use same core, clock speed and anti aliasing, seems that Microsoft launch Xbox 360 slim only to improve its reliability against overheating but not on its performance only adding some very minor things onto the system. All 360s will render and display exactly the same.