2. CAD and 3DMAX professional applications, of course, with a professional graphics card is good. Such as Leadtek's professional graphics cards, specifically for CAD and 3DMAX and other professional software optimization instruction set, non-those for the high-grade multimedia graphics cards comparable. The QK2000 you wrote above refers to the Leadtek Quadro 2000? If so, the other Sapphire FirePro V5800, both the 1G DDR5 model and the higher DVI model, are nowhere near as good as the Leadtek Quadro 2000, and while both support DirectX 11's 3D APIs, the Sapphire doesn't support OpenGL 4.1's 3D features. Leadtek, on the other hand, fully supports both driver-optimized features.
3.3770 is positioned for home or commercial grade multi-media high-end I7 series products, while the E3-1230V2 such as a certain core is not qualified for the bulk, natively developed for the server Xeon CPU, the core instruction set optimized for the platform and the driver are quite different. Positioning, targeting and level are not the same, actually someone will gear down to use E3 compared to I7? Read too much misleading online hype 。。。。
4. The I7's integrated graphics performance is really not good enough to talk about performance. The I7's integrated graphics performance is really not that good. But the three generations of I7 must be equipped with the Z77 chipset. The Z77 chipset is also divided into three grades. Low-end can only double A card crossfire, mid-range is not only compatible with double A card crossfire, but also double N card SLI. high-end, the first two kinds of support, but also support graphics cards and core graphics stacked set of crossfire. If you are choosing a high-end Z77 chipset motherboard, then the I7's core graphics will help the performance of the graphics card. Higher performance than just a single graphics card.
5. If the budget is good, you can directly group 2011 interface I7 + X79 chipset motherboard + 32G four-channel memory mode (8GX4) + Leader professional graphics card, than your company's 1155 interface I7 + Z77 chipset motherboard + dual-channel memory mode (8GX2) + ATI professional graphics card. Much better. If the budget is tight, according to the company's configuration, the graphics card into the same grade of Leadtek's professional graphics card is OK.