Upgrading a digital graphics computer system

Identify two graphics-related hardware upgrades to the system described below. Describe the potential benefits these upgrades will bring when working with graphic images.

System specification

Intel Pentium D 'Dual Core X2' CPU (5.3 Ghz)
VIA Chipset 1066 Mhz Motherboard - slots available: AGP8x (1), PCI (3), RAM (2); ports available: LAN (1), USB (6)
512 MB RAM
80 GB HDD (SATA300)
18X DVD+/-RW Dual Layer & Dual Format
onboard UniChrome PRO 3D Graphics with 64 MB shared memory
mouse and keyboard
15" flat screen
cheap inkjet printer

The first and obvious upgrade to this computer system would be to change the existing onboard UniChrome PRO 3D Graphics with 64 MB shared memory with a dedicated more adequate graphics card. The graphics card which is already installed in this system is very poor, it has small memory which is also shared meaning the system is constantly going to be relying on the RAM whenever you are using a graphics application, this will result in very slow performance. I would replace this component with a ATI Radeon HD 3850 Pro Turbo 512MB GDDR3 (AGP) graphics card. This would drastically improve system performance, firstly because the card is dedicated and doesnt require any of the systems RAM also because the speed of the card is 720MHz which allows fast trasnfer between the graphics card and the systems other components. Secondly this card uses the AGP interface slot which makes it fully compatiable with the motherboard already installed in the system. This price of this card (£155.09 ) isn't particulalry expensive for what it is and compared to the other cards available.

My next alteration would be to the systems RAM. I would upgrade the system to 2GB DDR2 (Corsair 2GB DDR2 Value Select PC2-5300C5 Dual Channel Kit (2x1GB) ) which would cost £29.36. This is considerably cheap and will benefit the system greatly. With a dedicated graphics card and 2GB of DDR2 RAM the computer will be able to function very efficiently and won't rely on shared components. Loading times would be reduced due to the memory upgrade, as well as the ability to run more applications at once.