970m vs 290x: benchmarks

I have a 970m in a laptop, and a r9 290x desktop, I ran version 3.30 on both, and got these results: 

R9 290x: 
Md5: 13043 Mh/sec
SHA1: 4704 Mh/sec

970M: 
Md5: 6626 Mh/sec
SHA1: 2301 Mh/sec
 
Does it make sense that the r9 290x is twice as fast, or there is something wrong?