Omega65
12 Oct 2004, 11:21pm
Xbitlabs (http://www.xbitlabs.com/articles/cpu/display/sempron-3100-oc.html) takes the Sempron 3100 (S754), Overclocks it and compares it to the Athlon 64 3400+ (2.2ghz 1MB), Athlon 64 2800+ (1.8ghz 512K), P4 3.4E and P4 3.4C.
So, we continued investigating the overclocking potential of the Sempron 3100+ on the following testbed:
<list>
<li>Mainboard: EPoX EP-8KDA3+ (NF3-250GB Socket 754);
<li>Cooler: Thermaltake Silent Boost K8 (A1838);
<li>Memory: 1024MB DDR500 SDRAM (Corsair CMX512-4000PRO, 2 x 512MB);
<li>Graphics card: ASUS RADEON 9800XT;
<li>Hard disk drive: Western Digital WD400JB.</list>
This Vcore value (v1.65) let us conquer the next frequency peak – 280MHz of the clock generator. The system was actually stable at 281MHz, too, and hang-ups and instability only occurred at 282MHz, but we rolled back to 280MHz for more stability; the effective CPU clock rate was very impressive anyway – 2.52GHz!
We should note that the Sempron 3100+ processor delivers good performance even without overclocking. Having only 256 kilobytes of L2 cache memory, it is just 1-2% slower than the full-featured Athlon 64 2800+.
As for the gain you receive by overclocking the Sempron 3100+, we enjoyed a performance growth of about 25% by clocking our sample at 2.52GHz (40% frequency boost). Thanks to that, the overclocked Sempron 3100+ could outperform the Pentium 4 3.4GHz as well as the Athlon 64 3400+ by about 5% in average.
Source: Xbitlabs (http://www.xbitlabs.com/articles/cpu/display/sempron-3100-oc.html)
So, we continued investigating the overclocking potential of the Sempron 3100+ on the following testbed:
<list>
<li>Mainboard: EPoX EP-8KDA3+ (NF3-250GB Socket 754);
<li>Cooler: Thermaltake Silent Boost K8 (A1838);
<li>Memory: 1024MB DDR500 SDRAM (Corsair CMX512-4000PRO, 2 x 512MB);
<li>Graphics card: ASUS RADEON 9800XT;
<li>Hard disk drive: Western Digital WD400JB.</list>
This Vcore value (v1.65) let us conquer the next frequency peak – 280MHz of the clock generator. The system was actually stable at 281MHz, too, and hang-ups and instability only occurred at 282MHz, but we rolled back to 280MHz for more stability; the effective CPU clock rate was very impressive anyway – 2.52GHz!
We should note that the Sempron 3100+ processor delivers good performance even without overclocking. Having only 256 kilobytes of L2 cache memory, it is just 1-2% slower than the full-featured Athlon 64 2800+.
As for the gain you receive by overclocking the Sempron 3100+, we enjoyed a performance growth of about 25% by clocking our sample at 2.52GHz (40% frequency boost). Thanks to that, the overclocked Sempron 3100+ could outperform the Pentium 4 3.4GHz as well as the Athlon 64 3400+ by about 5% in average.
Source: Xbitlabs (http://www.xbitlabs.com/articles/cpu/display/sempron-3100-oc.html)