The E1-1200 belongs to the updated Zacate series of AMD ( you can call it Zacate 2.0). The E1-1200 is the lower end of the newer series ( E2-1800 is other one). While the E2-1800 replaced and is faster than the E-450, E1-1200, which actually replaced E-300 is slower and somewhat inferior to the E-450 in performance.
Table : Feature Differences
|Feature||AMD E1-1200||AMD E-450|
|Core Frequency||1.40 GHz||1.65 GHz|
|No. Of Cores||2||2|
|Cache Organization||2 x 512 KB||2 x 512 KB|
|TDP Rating||18 Watts||18 Watts|
|64 Bit Support||Y||Y|
|Lithography||40 nm||40 nm|
|Integrated Memory Controller||DDR3-1333||DDR3-1333|
|Integrated Graphics||YHD 7310 GPU , 500 MHz||Yes, HD 6320, base clock 508 MHz, Turbo 600 Mhz|
Some more details of AMD E1-1200
The E1-1200 replaced E-300, bumps up its clock by 100 MHz and brings in a better graphics
Some more details of AMD E-450
The E-450 promises to enhance the performance of the earlier E-350 fusion processor mainly with support for turbo core. It increases the nominal core frequency to 1.65 GHz ( up from 1.60 GHz in E-350). The GPU uses newer core and supports turbo. Called APU ( Accelerated Processing Unit) by AMD, the E-450 will feature in low cost net book and small notebooks. It promises a decent multimedia performance.