Radeon HD 4200 (IGP) is an integrated GPU on the AMD 880G Chipset.
It's based on the RS880 Core and offers 40 Shader Processing Units, 4 TMUs and 4 ROPs a 32-bit memory interface of DDR2. The central unit runs, commonly, at up to 500MHz and the memory clock's operating speed depends on the system RAM's speed.
Radeon HD 4200's performance depends on the users system configuration which will define the operating memory clock's speed and on the desktop manufacturer which decides its central unit's speed.
Therefore, Radeon HD 4200 may offer similar performance to Radeon HD 4250/4290 but never close to the dedicated Radeon HD 4350. DirectX 11 games aren't supported.