The company AMD, as expected, is now the new chips for graphics cards series of Evergreen. Producer intends to submit a whole series for six months, and meticulously adheres to this plan. Recently been submitted to the GPU Cypress, on the basis of which made Radeon HD 5870 and Radeon HD 5850. Today, AMD is taking the next step and represents the second year chip Evergreen, codenamed "Juniper. This chip based Radeon HD 5770 and 5750.
What is Juniper? In short, this Cypress and a half functional blocks. Like its predecessor, Juniper supports DirectX 11, Eyefinity, anisotropic filtering, HDMI, and antialiasing. The new 10-chip SIMD, which gives 800 universal processors and 40 texture units, the number of ROP is also reduced by half, to 16, which in turn provides 128-bit memory bus. If Cypress was 2 United RV770, that Juniper can be an option RV770 family of Evergreen. By reducing the number of functional blocks Juniper is more compact. The number of transistors it is 1.04mlrd., About twice less than that of Cypress, and 100 million more than the RV770. The size of this core is 166mm ² core, for comparison, the area RV770 is 260mm ².
From GPU Juniper obtained 5770 and 5750. 5770 is the full version of the Juniper, which has used all the functionality of Juniper, and which operates at 850MGts (same as 5850). Option 5750 slightly reduced, about the same as 5850 decreased compared with 5870. In 5750 disabled 1 SIMD, and the core frequency is reduced to 700MHz. To reduce the performance of the chip applies a fundamentally different approach than in the case of a pair of 4870 / 4850, where 4850 was a little slowed down considerably slowed down the kernel and memory, without disabling SIMD.
Power consumption chips Juniper also lowered compared with the 5800 series chips. 5770 consumes 108Vt load and 18W at idle and 5750, respectively 86Vt and consumes 16W.



Reply With Quote
Copyright Techfuels
Bookmarks