A lot of banks offer higher interest rates for competitiveness. however, as we look into it on how the interest given then u will see differences.

For Eg:
UOB offers 3.85% FD promo rate.
condition: 30% of the amount placement hold for 3 mths in High Yield Account (with 0.2% interst) where it will be released proportionally each month.
thus, effective rate is only 2.755%

CIMB offer 4.5% FD rate.
condition:
1-3mth: 3%
4-6mth: 3.1%
7th mth: 3.4%
8th mth: 4.5%
thus effective rate is only 3.28%

Maybank offer 4.18% FD rate:
condition:
1-2mth: 3.1%
3-5mth: 3.25%
6th mth: 4.18%
thus effective rate is 3.36%

RHB offer 3.7% FD promo rate.
condition:
1-2mth: 3.45%
3-4mth: 3.5%
5-6mth:3.55%
7-8mth: 3.7%
thus effective rate is 3.55%

Standard chartered offer 5% but with T&C. n the 5% bonus is based on the incremental amount only if not mistaken. n the min amount in the account is rm3K.
should calculate the total $$ u may get n the capital u have in order to enjoy the 5%.

every month u need to top up your account in order to enjoy the 5%. i'm not sure how they calculate the interest but according to info i know, the interest is calculated based on the average incremental amount.
5% special rates consists of bonus interest PLUS interest at the effective interest rate. So it is not giving out 5% flat to all customers.
Example: Bonus Interest earned for an account with Incremental average balance of RM200,000:
5% (Special interest) - 2% (Tier rate of e$aver) = 3% only. and it varies depend on customer’s balances and the tier rate.