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I have a 2,70 GHz AMD quad-core microprocessor (A6 3670). My computer can run fine the old Crimzon Clover japanese CD-version.

According to GOG, the minimum requirements of this new "Crimzon Clover: World Ignition" are "Pentium 4 2.80GHz or better", so I'm afraid that my computer may not be able to run it properly. I thought this new "World Ignition" version was essentially the same as the old japanese one, so I wonder why are the minimum requirements so high.

Could it be because of the added multiplayer mode? I only plan to play this game solo, so in that case my computer may handle it. Does "World Ignition" have any other CPU-demanding feature over the "classic japanese version"?

Any insight would be very welcome. I'm very happy to see this game available on GOG but I don't want to buy a game that I won't be able to play.
This question / problem has been solved by triockimage
With each new generation of processors, IPC is usually improved, this means that a new processor is faster on the same frequency. Pentium 4 is quite old, my guess is that your CPU is aprox. 20% faster despite its slightly lower frequency (not to mention that it is also a quadcore, but it doesn't matter in this case). So don't worry, you'll be able to play this game just fine. ;)
Post edited December 03, 2014 by triock
Thanks! I finally bought it and you were right.

My computer runs the game flawlessly: most of the time I got 59,8 FPS, and only when the extra boss exploded the framerate dropped to 59,7 FPS for half a second.

Also, this "World Ignition version" has much shorter loading times and slightly shorter boss fights (bosses have less health, maybe to be easier), so it feels faster than the old japanese version.