# what is the difference/similarity between MIPS and FLOPS?

I believe both MIPS and FLOPS are metrices for calculating processor speed. What is the difference between them? Are they in any way related or dependent on each other?

• Unasked, but note that a CPU with more MIPS may be slower than another different CPU with less MIPS. MIPS just counts instrctions per second. Now how much useful work can be done per instruction. Oct 16 '12 at 15:19

Study them using google and you will find out a lot from using the full forms,

MIPS=millions of instructions per second

FLOPS= floating point operations per second

mips talks about instructions which could be any type of instruction.

flops talks about a specific type of operation present in the instruction which is related to decimal numbers.

so they are not related in measuring as both use different reference points.

• Thanks Doopy Doo! Why are FLOPS taken as a measure though? Shouldnt MIPS be more accurate in that case? Oct 25 '12 at 21:15

MIPS and FLOPS ARE metrices for calculating processor speed.

"MIPS=millions of instructions per second FLOPS= floating point operations per second"

Computer architectures have been made to "cut corners" to make them more efficient. This causes different architectures to have different run times for identical programs (a set of instructions). This makes a comparison using MIPS (relatively) meaningless over different architectures, but great to show performance upgrades in the same (or similar) ones.

FLOPS measure for a precise type of instruction. Therefore, it can be used to see which architectures are best for specific types of programs.

If, however, there wasn't a specific task in mind. MIPS could be used to find a computer architecture that is a Jack of all trades.

The intent of the comparison matters here.

So they are related only in the fact that they are metrics for calculating processor speeds. They are independent on how they operate or what they are used for.

Instruction is slightly more complicated than floating point operation, but they are in the same order of magnitude or no more than one order of magnitude difference. If we assume one instruction requires 10 floating point operation, 1 MIPS ~ 10 million FLOPS.