Original title: TSMC 4N 5nm powerful! The 12GB 4080 transistors are much more than the 3090Ti but half smaller
The NVIDIA Ada Lovelace RTX 40 series uses a special TSMC 4N process, a customized version of NVIDIA, which actually belongs to the TSMC 5nm process family.
Indeed,TSMC 5nm family version is very rich, including N5 standard version, N5P, N4, N4P, N4X, NVIDIA 4N performance enhanced version.
Although the naming is very confusing, the TSMC 4N process is still good in terms of specifications, much better than the Samsung N8 8nm from the RTX 30 series.
AnandTech learned the exact area and number of transistors of the first three cores of the RTX 40 series, as follows:
– RTX 4090 AD102: 608 square millimeters, 76.3 billion transistors, 125.5 million per square millimeter
– RTX 4080 16GB AD103: 378.6 square millimeters, 45.9 billion transistors, 121.1 million / square millimeter
– RTX 4080 12GB AD104: 294.5 square millimeters, 35.8 billion transistors, 121.1 million per square millimeter
The three cores integrate over 120 million transistors per square millimeter, and the AD103 and AD104 are exactly the same, far exceeding TSMC’s 45.1 million 8nm process RTX 3090 / Ti GA102 cores.
Even more surprising,Being a small core, the AD104 has 7.5 billion more transistors than the GA102’s large core, but the area is less than half of the latter, which is reduced by up to 53%!
In addition, the Ada architecture achieves an increase in the number of ROP raster units, three cores respectively92, 112, 80which can greatly improve the performance of traditional raster games.
The second level cache is also increased to96 MB, 64 MB, 48 MBwhich should significantly increase the bandwidth.
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