telperion ha scritto:
Potete usare la 64 bit (io lascerei perdere) avete solo l''accesso alla memoria a 64 bit, supporto a più di 4 GB di ram (li avete?) e un sacco di rogne aggiunte con cose che a 64 bit non ci sono. Il resto è marketing.
Poi fate voi.
Beh penso che questa discussione sia stata fatta molte volte

Gli incrementi prestazionali sono presenti per operazioni computazionalmente complesse e che sono pensate per avvantaggiarsi se possibile dei 64bit, come la compilazione, il rendering, l''editing video, i calcoli scientifici.In pratica nei calcoli in virgola mobile molti complessi. A me scancherare un pochino per installare i programmi non normalmente disponibili sui 64bit non disturba, magari ad altri si, specie se molto nuovi. Ma mi piace l''idea di sfruttare al massimo la mia potenza di calcolo.
Da wikipedia:
Contro
While 64-bit architectures indisputably make working with huge data sets in applications such as digital video, scientific computing, and large databases easier, there has been considerable debate as to whether they or their 32-bit compatibility modes will be faster than comparably-priced 32-bit systems for other tasks. In x86-64 architecture (AMD64 and EM64T, IA-32e), the majority of the 32-bit operating systems and applications are able to run smoothly on the 64-bit hardware.
Pro (a parte il suddetto vantaggio ne calcoli pesanti in virgola mobile)
A common misconception is that 64-bit architectures are no better than 32-bit architectures unless the computer has more than 4 GiB of memory. This is not entirely true:
* Some operating systems reserve portions of process address space for OS use, effectively reducing the total address space available for mapping memory for user programs. For instance, Windows XP DLLs and userland OS components are mapped into each process''s address space, leaving only 2 to 3.8 GiB (depending on the settings) address space available, even if the computer has 4 GiB of RAM. This restriction is not present in 64-bit Windows.
* Memory mapping of files is becoming less useful with 32-bit architectures, especially with the introduction of relatively cheap recordable DVD technology. A 4 GiB file is no longer uncommon, and such large files cannot be memory mapped easily to 32-bit architectures; only a region of the file can be mapped into the address space, and to access such a file by memory mapping, those regions will have to be mapped into and out of the address space as needed. This is an issue, as memory mapping remains one of the most efficient disk-to-memory methods, when properly implemented by the OS.
Tutto qui. E'' comunque innegabile che col tempo i 32bit spariranno. Quanto a se usarli adeso o meno.. se non avete esigenze, è una questione di gusti