AMD Ruilong 4000 has eight cores, performance improvement 56%

AMD officially issued Ruilong 4000U, Ruilong 4000H series mobile APU (codename RENOIR), using 7nm process, ZEN 2 architecture, maximum of eight CPU core, eight GPU calculation units (512SP), thermal design power consumption 15 / 45W . After the press conference, Anandtech visited the AMD's booth, surprised to discover the die of the Ruilong 4000 APU, next to the 64 core 128 thread torn 3990x duck, so measured their core area. Both the three generations of sharp dragon and the three generations have adopted Chiplet chip design, with eight cores in each CPU DIE, the measured area is 10.32 × 7.24 = 75.75 square millimeters (the official core area is 74 square millimeters plus additional fill). Ruilong 4000 APU kernel real test length 13.59 mm, width 10.98 square millimeters, with an area of ​​149.27 square millimeters. Under such an area, the good product rate of the Ruilong 4000 APU is about 90%, although this does not consider the manufacturing yield, although this does not consider the manufacturing yield. It is also considerable. In addition, before the Ruilong 4000 APU released, there is a guess how AMD will design. It is four CPU core plus more GPU core, or eight CPU core plus less GPU core. As a result, AMD not only puts in eight CPU cores, but 15W heat design power consumption is 4.3GHz, but also in the eight GPU calculation units and the performance is 56% higher than the above generation, very delicate, and very easy. The Rui Long 3000 APU area manufactured by the GF 12nm process is 209.78 square millimeters, with four CPU cores, 11 GPU units. The 10nm + process Intel Tiger Lake area is 146.10 square millimeters, with four CPU cores, 96 GPU units (of course, the AMD / Intel GPU unit is not directly comparable). Read more

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