System Spec For Adobe Premiere Pro

I'm looking to buy 40 computers to be used for Adobe Premiere Pro. Budget needs to be kept in mind as we don't have limitless money.

Currently have two specs suggested by our supplier, what are peoples thoughts;

Spec 1:
CPU: Intel Pentium G2020 (Cores: 2, Threads: 2 @ 2.9GHz)
RAM: 2 X 4GB DDR3 1333
SSD: 60GB Kingston SSD
GPU: Sapphire AMD Radeon HD 6570 2GB


Spec 2:
CPU: Intel Core i5-3450 (Cores: 4, Threads: 4 @ 3.1Ghz)
RAM: 2 X 4GB DDR3 1333
SSD: 60GB Kingston SSD
GPU: Sapphire AMD Radeon HD 6570 2GB

The main thing I'm interested in is the CPU and GPU, is the i5 worth it over the Pentium (about a £150 price difference per computer). Is the Graphics Card good enough? It is not on the recommended list by Adobe for Premiere Pro, will that be an issue? Should we pick another that is recommend?

Intel Pentium G2020: http://ark.intel.com/products/71070/Intel-Pentium-Processor-G2020-3M-Cache-2_90-GHz
Intel Core i5-3450: http://ark.intel.com/products/65511/Intel-Core-i5-3450-Processor-(6M-Cache-up-to-3_50-GHz
 
What is your budget for each computer? Because both PCs will struggle greatly in Premier Pro.
 
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