HP Compaq 421
Reviews for the HP Compaq 421
Source: PC Online.com.cn zh-CN→EN
Single Review, online available, Medium, Date: 01/27/2011
ATI Mobility Radeon HD 530v: Renamed HD 4350 graphics card and therefore an entry level GPU with DirectX 10.1 support.
Only some 3D games with very low demands are playable with these cards.
Intel Core 2 Duo: This is the Core Duo and Core Solo successor with a longer pipeline and 5-20% more speed without more power consumption. As an addition to the Core Duo design there exists a fourth decoder, an amplified SSE-unit and an additional arithmetical logical unit (ALU).
The Core 2 Duo for laptops is identical to the desktop Core 2 Duo processors but the notebook-processors work with lower voltages (0.95 to 1188 Volt) and a lower Frontside bus clock (1066 vs 667 MHz). The performance of equally clocked notebooks is 20-25% lower than Desktop PCs because of the lower Frontside bus clock and the slower hard disks.
T6670: Entry level Core 2 Duo based on the Penryn core. Similar to the C2D T6600 but with VT-x Virtualization and higher temperature specification.» Further information can be found in our Comparison of Mobile Processsors.
15-16 inch is a standard display size for laptops and offers the biggest variety of products.» To find out how fine a display is, see our DPI List.
This weight is representative for typical laptops with a 14-16 inch display-diagonal.
HP: The Hewlett-Packard Company, founded 1935, commonly referred to as HP, is a technology corporation headquartered in California, United States. HP specializes in developing and manufacturing computing, storage, and networking hardware, software and services. Major product lines include personal computing devices, enterprise servers, related storage devices, as well as a diverse range of printers and other imaging products. Other product lines, including electronic test equipment and systems, medical electronic equipment, solid state components and instrumentation for chemical analysis. HP posted US $91.7 billion in annual revenue in 2006, making it the world's largest technology vendor in terms of sales. In 2007 the revenue was $104 billion, making HP the first IT company in history to report revenues exceeding $100 billion. Market share regarding sales of personal computers in 2007 (market research IDC): HP 18.9 %, Dell 16.4 %, Acer 9.9 %, Lenovo 7.5 %, Apple 5.7 %
» Further information can be found in our Notebook Purchase Guide.