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http://www.reactorcritical.com/#l1017

NV25 General Specifications:
63 Million Transistors
0.15 micron.
4 rendering pipelines, 2 TMUs each.
300 MHz core frequency.
NVidia declares 4.9 Gpixels/s fillrate for the upcoming GPU. We already know that nowadays developers declare so-called effective fillrate for their processors, so, take these enormous numbers as "peak numbers" that do not have a lot to do with the real games in real life.

Memory subsystem details and specifications:
Frequency: 650 MHz DDR SDRAM.
Four BGA memory chips on the front side of the board, just like on the FireGL 8700. However, NVidia solution also has memory heatsinks.
Peak memory bandwidth: 10.4 GB/s.
128MB Frame Buffer.

Lossless 4:1 Z-compression: four times decreases the memory bandwidth consumed by Z-buffer.
Second generation Occlusion Culling. As we know from various reviews, Hidden Surface Removal technique is more efficient in RADEON 8500 and KYRO II than in GeForce3; in GeForce4, NVidia introduces a new algorithm that will be more effective than its predecessor.
Quadcache Architecture.