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Dual-core HD laptops below 3K recommendation Who says there's no market at the low end? When "tall, rich, and handsome" becomes a new word for another type, those Macbook Airs SUPREMEFIRE embedded with gold and diamonds, extremely high-end Dell Alienware extraterrestrial madmen, under the dazzling halo of various high-end and luxurious configurations, hide the plain-faced Pentium B9 core, Celeron B8 core, Core i3 core HD 3000 integrated graphics, AMD E/C series models priced within 3 thousand yuan, buried in the corner of the market, these low-end products are so unnoticeable and even dull. For entry-level users, this article first compares the low-end configuration and performance differences below 3 thousand yuan, then recommends and introduces integrated graphics and discrete graphics products at low prices.

Test of Sandy Bridge architecture Celeron B815 integrated graphics Similar to the positioning of netbooks, Brazos APU low-power design, especially designed for HD video books, online entertainment, portable devices, is obviously not mainstream performance. Although Brazos APU was born at an inappropriate time, during the decline of netbooks. Although in terms of data processing performance, compared with APU A series processors, Brazos APU is really too weak. However, under the premise of only 18W power consumption (including GPU), Brazos APU E/C series processors can perfectly realize HD video and surpass Atom as well as the combination with ION in all aspects. Undoubtedly, Radeon HD 6320/6310 graphics core and Bobcat architecture partner are a perfect combination, basically able to handle mainstream HD videos, online entertainment, and even some 3D games at entry-level settings, faster than most current integrated graphics cards, and even not inferior to Sandy Bridge architecture HD Graphics 3000 under DirectX 11 features. Is this not enough?

AMD APU E-450 (integrated graphics): 1024x768 (left), 1280x768 (right). Therefore, in terms of market segmentation, the performance below 3 thousand yuan can be divided like this, purely discussing integrated graphics: Core i3 integrated graphics > Pentium B9 core integrated graphics > Celeron B815 integrated graphics > APU E-450. Since Brazos APU series processors are designed for low power consumption, from the 3DMark06 test results, they are almost equivalent to the test performance of Celeron B815, with little difference between the two. Although the main frequency of APU E/C series is lower, adding independent graphics card configuration can greatly reduce the data pressure on CPU graphics performance.

On the other hand, within the price range of 3 thousand yuan, selecting integrated graphics models is more balanced and matched. In addition to many integrated graphics models, various laptop manufacturers also launch many discrete graphics models, thereby enhancing performance, such as Pentium B9 core paired with GT 540M, HD 6370M, APU E-450/E-350 paired with HD 6470M discrete graphics card configurations, which significantly improve performance. Below is the configuration price table of five products introduced in this article below 3 thousand yuan.

Performance testing of Celeron dual-core B815 through 3Dmark06, since the test includes comprehensive manifestations of both the graphics card and the processor, it can also be used as a reference for daily application needs. In the test of Core i3 + HD3000 integrated graphics (default resolution of 1280x768), the score is about 3600 points, Pentium dual-core B940 + HD3000 integrated graphics scores around 3100 points, and this Celeron dual-core B815 scores 2911 points, making the distinction very clear. Under the Sandy bridge architecture, the performance ratio can be roughly estimated as follows: Celeron B815 = 80% x Pentium B940 = 72% x Core i3 (core graphics).

Careful friends will notice that since the Celeron B815 dual-core processor continues the Sandy bridge architecture, compared with Core i series, the disadvantages of dual-core Celeron B815 are that it does not support AVX instruction set and the third-level cache has been cut off. Compared with "difficult brothers" Pentium dual-core B9 core, many specifications are very similar, such as both having 2MB third-level cache, GPU graphics core frequency 650-1050MHz (Pentium B9 core GPU dynamic frequency is 650-1100MHz, slightly higher), and actual performance is also relatively close.

A perfect fusion: AMD APU Brazos low-power platform Besides Intel, on the opponent AMD side, currently configurations within 3 thousand yuan include AMD E/C series models, AMD Brazos platform includes two major parts, one is based on the Bobcat micro-architecture Zacate E series, Ontario C series APU processors, using TSMC 40nm process manufacturing, in addition to dual-core models, there are also single-core models, the area is only 75 square millimeters.

E series processors have APU E-450/350/300, all are dual-core dual-thread design, 1M second-level high-speed cache, integrated graphics core. The main frequency of APU E-450 dual-core processor is still designed as 1.6GHz, TDP thermal design power consumption 18W, the biggest difference is that the internal fused graphics card is upgraded to AMD Radeon HD6320G. APU E-350/300 integrates Radeon HD 6310, all support DirectX 11, TDP design is only 18W, power consumption design is quite low.