P4C 2.4 GHz @ 3.0 GHz, HT enabled, running WinXP:

<!-- Notice to all: modifying this file could be tragic!!!
Pretty to see, nice to hold
But if you change this, consider yourself told -->
<md5crackTestbed>
<fullname>md5crk_1.0.6_win32</fullname>
<versionNumber>5</versionNumber>
<buildDate>Apr 20 2004 13:11:18</buildDate>
<md5coreX86ANSIC>
<rate>4.511217</rate>
<time>3719</time>
<xforms>16777216</xforms>
<cycles>0</cycles>
<passed>yes</passed>
</md5coreX86ANSIC>
<md5coreX86ALU>
<rate>5.237969</rate>
<time>3203</time>
<xforms>16777216</xforms>
<cycles>538</cycles>
<passed>yes</passed>
</md5coreX86ALU>
<md5coreX86MMX>
<rate>4.511824</rate>
<time>7437</time>
<xforms>33554432</xforms>
<cycles>1281</cycles>
<passed>yes</passed>
</md5coreX86MMX>
<md5coreX86MMXALU>
<rate>6.533184</rate>
<time>7704</time>
<xforms>50331648</xforms>
<cycles>1280</cycles>
<passed>yes</passed>
</md5coreX86MMXALU>
<md5coreX86MMXALU2>
<rate>8.782733</rate>
<time>7641</time>
<xforms>67108864</xforms>
<cycles>1507</cycles>
<passed>yes</passed>
</md5coreX86MMXALU2>
<md5coreX86SSE2>
<rate>9.651785</rate>
<time>6953</time>
<xforms>67108864</xforms>
<cycles>1231</cycles>
<passed>yes</passed>
</md5coreX86SSE2>
<md5coreX86SSE2ALU2>
<rate>13.068064</rate>
<time>7703</time>
<xforms>100663296</xforms>
<cycles>1347</cycles>
<passed>yes</passed>
</md5coreX86SSE2ALU2>
<md5coreX86SSE2ALU4>
<rate>10.552538</rate>
<time>12719</time>
<xforms>134217728</xforms>
<cycles>2180</cycles>
<passed>yes</passed>
</md5coreX86SSE2ALU4>
<preferedCore>X86SSE2ALU2</preferedCore>
</md5crackTestbed>

Starting the second instance while the first one already runs:

<!-- Notice to all: modifying this file could be tragic!!!
Pretty to see, nice to hold
But if you change this, consider yourself told -->
<md5crackTestbed>
<fullname>md5crk_1.0.6_win32</fullname>
<versionNumber>5</versionNumber>
<buildDate>Apr 20 2004 13:11:18</buildDate>
<md5coreX86ANSIC>
<rate>3.591014</rate>
<time>4672</time>
<xforms>16777216</xforms>
<cycles>0</cycles>
<passed>yes</passed>
</md5coreX86ANSIC>
<md5coreX86ALU>
<rate>4.530709</rate>
<time>3703</time>
<xforms>16777216</xforms>
<cycles>668</cycles>
<passed>yes</passed>
</md5coreX86ALU>
<md5coreX86MMX>
<rate>3.219886</rate>
<time>10421</time>
<xforms>33554432</xforms>
<cycles>1624</cycles>
<passed>yes</passed>
</md5coreX86MMX>
<md5coreX86MMXALU>
<rate>4.986294</rate>
<time>10094</time>
<xforms>50331648</xforms>
<cycles>1849</cycles>
<passed>yes</passed>
</md5coreX86MMXALU>
<md5coreX86MMXALU2>
<rate>5.499374</rate>
<time>12203</time>
<xforms>67108864</xforms>
<cycles>2135</cycles>
<passed>yes</passed>
</md5coreX86MMXALU2>
<md5coreX86SSE2>
<rate>6.468324</rate>
<time>10375</time>
<xforms>67108864</xforms>
<cycles>1930</cycles>
<passed>yes</passed>
</md5coreX86SSE2>
<md5coreX86SSE2ALU2>
<rate>5.150071</rate>
<time>19546</time>
<xforms>100663296</xforms>
<cycles>2276</cycles>
<passed>yes</passed>
</md5coreX86SSE2ALU2>
<md5coreX86SSE2ALU4>
<rate>7.398585</rate>
<time>18141</time>
<xforms>134217728</xforms>
<cycles>3263</cycles>
<passed>yes</passed>
</md5coreX86SSE2ALU4>
<preferedCore>X86SSE2ALU4</preferedCore>
</md5crackTestbed>

Note:
The 2nd instance uses the ALU4 instead of the ALU2, but the speed is more or less the same (sometimes, one is faster, at other times the other one)...