descrifrando mi tarjeta de video (lspci -v)

Ejecute este comando y me salio lo siguiente mi consulta, la tarjeta de video es de 32 de ram o de 16 de ram y por que sale dos de esos valores y no uno solo.

$sudo lspci -v

01:00.0 VGA compatible controller: nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] (rev 15) (prog-if 00 [VGA])
Flags: bus master, 66MHz, medium devsel, latency 248, IRQ 16
Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Memory at f2000000 (32-bit, prefetchable) [size=32M]
[virtual] Expansion ROM at fe9f0000 [disabled] [size=64K]
Capabilities: [60] Power Management version 1
Capabilities: [44] AGP version 2.0

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