Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

BitLocker encrypts the entire hard drive. I run Visual Studio and build projects much of my day. How much will BitLocker slow me down? (dual core laptop with 3GB of RAM).

share|improve this question

1 Answer 1

up vote 7 down vote accepted

MaximumPC ran a few tests:

However, when we busted out the hard-drive-intensive benches, we immediately saw as much as a 20 percent hit on the encrypted system. We're not sure the PCMark06 slowdown represents real-world performance, but our Photoshop script, which includes tons of hard-drive-intensive reverts, showed a 10 percent hit as well.

What's the bottom line? We're not going to enable BitLocker on systems that don't hold crucial, mission-critical data.

Benchmark: (Unencrypted Drive;Encrypted Drive)

FEAR (FPS); 56; 57

3dMark06; 8071; 8082

PCMark06 Hard Drive Suite; 6133; 4948

Photoshop CS Script (Sec); 303; 330

sure, running 3D benchmarks doesn't really make sense as you're hardly going to encrypt a gaming rig, but in the end it's simple trade off: performance for security.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.