DES is so slow?

[aaaaa1]

Hi guys!
Before i used oclhashcat v1.01 and has good speed:

Code:

./oclHashcat64.bin -m 1500 --remove -n 400 -u 400 --rules-file ./rules/leetspeak.rule -o ./outfile ./hash.txt ./dic.txt

Benchmark result:

#! ./oclHashcat64.bin -b
oclHashcat v1.01 starting in benchmark-mode...

Device #1: Tahiti, 2911MB, 925Mhz, 32MCU

Hashtype: descrypt, DES(Unix), Traditional DES
Workload: 64 loops, 32 accel

Speed.GPU.#1.: 84747.9 kH/s

But after installing new kernel and running oclhashcat v1.20 i got next result:

Code:

./oclHashcat64.bin -m 1500 --remove -n 400 -u 400 --rules-file ./rules/leetspeak.rule -o ./outfile ./hash.txt ./dic.txt

Benchmark result:

#! ./oclHashcat64.bin -b
oclHashcat v1.20 starting in benchmark-mode...

Device #1: Tahiti, 2869MB, 925Mhz, 32MCU

Hashtype: descrypt, DES(Unix), Traditional DES
Workload: 128 loops, 32 accel

Speed.GPU.#1.: 59738.3 kH/s

Can someone tell me is it normal or i did mistake?

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