Rx550640sp computing power

2. This graphics card can use any CPU,
but it is recommended to use I37 generation or above CPU,
this can give better play to the performance of the graphics card,
lower than this level of CPU may not give full play to the performance of the graphics card.

3. thirty

4. Aprotic solvent is also called aprotic transfer solvent. The proton self delivery reaction of this kind of solvent is very weak or has no self delivery tendency. According to their interaction with solute, they can be divided into dipolar aprotic solvent and inert solvent. This kind of solvent can be divided into: aprotic nonpolar solvent, such as benzene, ether, carbon tetrachloride, etc; Aprotic polar solvents, such as dimethyl sulfoxide, N, N-dimethylformamide, acetone and so on, because the molecules of aprotic polar solvents have polarity, they will affect solute molecules and proce solvation effect. Protonic solvent contains - Oh, - NH, such as methanol, which will form hydrogen bond with nucleophilic reagent and make nucleophilic reagent solvable. Aprotic solvent, also known as proton inert solvent, can not give protons in the reaction system can be called aprotic solvent. Aprotic polar solvents, such as acetonitrile (CH3CN), dimethylformamide (DMF), dimethyl sulfoxide (DMSO), hexamethylphosphoryltriamide (HMPA), etc. Aprotic polar solvents can solvate cations, especially metal cations. Protonation gives a hydrogen ion, which is positively charged, making it more electrophilic. O. The coordination of H + on N and other elements can be simply understood as combining with proton, that is, combining with a proton. Generally, the substance has lone pair electrons, so it can combine with a proton through coordination bond. For example, when H2O becomes H3O + NH3 becomes NH4 +, different substances have different protonation ability, and some substances with larger dipole moment often have weak protonation ability

5. The single precision of water-cooled 64 is 13.7t, and that of air-cooled 64 is 12.6. According to the price, in fact, air-cooled 64 is more valuable than water-cooled 64. Air cooled 64 is almost cheaper than water-cooled 64, but its performance is only a little less.

6. It seems not. Now there is a company in Lanzhou airport that can charter a car to Xining, but it's very expensive. It's suggested to take the airport bus to Lanzhou circle road, then take a taxi to the east bus station (very close, less than 10 yuan), and take the high-speed bus to Xining.