Instale T video y CS se alento

Saludos al Foro
Tengo problemas con CS. Instale una tarjeta de video GeForce FX5700 de 128MB esperando mejor rendimiento con CS, pero resulto contraproducente. El sistema se alento.
Alguien sabe si es necesario realizar alguna configuración especial en CS o en el software de la tarjeta para mejorar el rendimiento.
Mi equipo:
Tarjeta madre: D865GBF Intel
Memoria: 512 MB
T video: GeForce 5700 128 MB
Discos D.: 1 serial ata 80 GB
1 serial ata 120 GB
1 ultra ata 80 GB
Procesador: P4 2.8 GH HT
Saludos.

¿Ya probaste bajando los últimos drivers de tu tarjeta del sitio del fabricante? A veces los que vienen en el CD no son suficientes. Por cierto ¿qué sistema operativo usas?
Salu2

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