The EFL have a benchmark program called expedite that runs a series of tests to measure rendering speed of the device. Here is a chart comparing the output of running it on the Efika and on an Asus Eee 701 (Celeron 900mhz CPU):
Expedite Comparison Chart

Notice that the EFL that is running on the Efika is not completely optimized yet, and the main difference in this case being that the Eee has SSE2 and other SIMD optimizations enabled, and the Efika version was compiled without NEON support. I'm moving to a new apartment this weekend and am already without internet access at home, but I'll soon try to get the benchmark with NEON enabled to get a better comparison going.