Posted:2006-04-28 By harwdare review Number of View:90446
PENTIUM D 805 AND CELERON D 356 -
REVIEW - OVERCLOCKING BUDGET
INTEL P4 CELERON
By :harwdare review
Posted:2006-04-28
xtreview is your : Video card - cpu - memory - Hard drive - power supply unit source
Pentium D 805 and Celeron D 356 - review - Overclocking Budget Intel p4 celeron
While everybody is waiting for Intel to release the next big thing, Conroe, the release of two new processors almost caught the enthusiast and media off-guard. The Pentium D 805 and Celeron D 356 are priced lower than the competition so are they interesting for the budget friendly overclockers out there? Let´s take a closer look and find out
Introduction to pentium d 805 and celceron d 356
While AMD has been getting quite a lot
of deserved attention from the enthusiast crowd it has recently come to our
attention that for those looking for the best bang for the buck overclocking
system, Intel might have something up their sleeves.
With the
introduction of the Pentium D 805 Intel is offering a Dual Core CPU at half the
price of the cheapest AMD Dual Core offering, and for those looking for even
cheaper parts the Celeron D 356 based on 65nm process has been released too,
challenging the AMD Sempron product line. While performance of both parts have
been compared to the competition numerous times, we thought it would be
interesting to see how these two ???budget??? CPU would overclock using plain air
cooling (It??в„ўs hard to justify installing a $600 subzero cooling on a $150
CPU)
Specification Comparison pentium d 805 vs celceron d 356
Celeron
D 356
Pentium
D 805
Clock Speed
3.33Ghz
2.66Ghz
Dual Core
no
yes
Core Name
Cedar Mill
SmithField
Technology
65nm
90nm
Features
MMX,SSE,SSE2,SSE3,EM64T
MMX,SSE,SSE2,SSE3,EM64T
L2 Cache
512Kb
1024Kb
FSB
533Mhz
533Mhz
The Motherboard
We had to find a Socket T/S775
motherboard which offered good overclocking abilities but didn??в„ўt cost an arm and
a leg, the Asus P5LD2 based on the Intel 945P chipset priced at ~$110 seems to
be a good choice
CPU Support: Intel Pentium D/Pentium 4 HT/Celeron D
DDR2 Standard: DDR2 667
FSB: 1066/800MHz
PCI Express x1: 3
PCI Express x16: 1
The motherboard??в„ўs chipsets are cooled passively
interesting for those who like to build a silent budget PC
The Asus P5LD2 comes with enough features to not leave you wanting; you get RAID
0/1/5/0+1 support, onboard sound and network. For a more details on the P5LD2
check out the Asus product page.
The BIOS on the Asus offers quite a
lot of options to get your system running above default
You have control over the FSB/Memory divider, so you can run the memory
asynchronous from the FSB if you are using lower clocked DDR2 sticks. DDR2
voltage can be increased to 2.3v.
CPU voltage goes all the way up to 1.7v! If you are lucky enough to get your
hands on an ES (Engineering Sample) you can control the CPU multiplier also in
the BIOS. Last BIOS screen shows the variety of memory timings you can
adjust.
Test Setup for Pentium D 805 and Celeron D 356
Windwithme's Test Setup
CPU Cooling
Thermaltake Sonic Tower &
Stock Cooling
Mainboard
Asus P5LD2
Memory
2*512MB DDRII
667
Video
nVidia 6600GT
Other
Seagate 7200.7 80GB SATA
Maxtor 30GB 5,400rpm
Seasonic 380W PSU
Time to start
up the system and see how the CPU??в„ўs can be overclocked
The Pentium D 805 was cooled with a Thermaltake Sonic Tower equipped with two
120mm fans, the Celeron D 356 ran a lot cooler and stock cooling was enough for
our overclocking adventure.
That the Pentium D 805 gets hot when overclocked is not news, in combination
with only 3-pashed power circuit from the Asus P5LD2 (instead of a better
4-pashed circuit) the backside of the motherboard got so hot that it burned
through foam lying underneath:
Overclocking the Pentium D 805
Running at stock
speeds the 805 only needs ~1.35v vcore to remain stable; At these settings the
DDR2 memory is running with ½ divider at 266Mhz CL3-2-2-4 using 1.8v voltage
setting the BIOS
Increasing the FSB the CPU overclocks easily to 3.3Ghz without touching CPU
vcore settings, the DDR2 is still running with ½ divider and gets a bump to
2.1v.
At 781Mhz Front Speed Bus the CPU is at 3.9Ghz, a small bump to 1.5v vcore was
needed for this, the memory is running on 3/5 divider.
The system started to act up once you near the 200Mhz FSB mark (800Mhz quad
pumped), at 3.9Ghz it was rock stable, 4Ghz (the limit of the system is seemed)
was reached but not 100% stable. It turns out once you disable SATA and hook up
a PATA hard drive the system ran successfully at 4.2Ghz
Having only an older 5400rpm PATA drive available the 32Mb SuperPi test was
lower than expected. Since disabling SATA is not a feasible solution we only
compared the benchmark scores of the 805 clocked to maximum 3.9Ghz.
Benchmark CPU scaling Pentium D 805
Overclocking Celeron D 356
Overclocking the 65nm
Celeron D 356
went quite smooth and with the large multiplier the CPU speed
rocketed sky-high until the same FSB wall was reached, the end result is a
1.5Ghz overclock with only 1.4v vcore.
3DMark03 benchmark
To make things interesting AMD??в„ўs
latest, the FX-60 was added to the comparison, default it runs at 2.6Ghz but
overclocked to 3Ghz it was stable when using adequate cooling.
Although the FX-60 beats the D805 easily in the CPU test the overall score is in
favor of the D805, which is weird, repeating the test several times didn??в„ўt
change the outcome. The Celeron D 356 has a clear Ghz lead but it doesn??в„ўt
translate in better performance as it trails the other two
configurations.
Overall thoughts
Pentium D 805
The price of this CPU is extremely low which
makes it a winner as a budget CPU, even when not considering overclocking, a
Dual Core CPU at this price is the best thing Intel has done up until now this
year! They??в„ўve also included a better standard Heatsink/Fan combo which supports auto fan speed
adjustment, allowing the Fan to be quite silent when running idle. For the price
this D 805 runs almost as fast as the best out there when overclocked.
The draws backs are its high power consumption and when overclocking
you??в„ўll have to invest in better cooling to keep the temperatures down. The Asus
P5LD2 limits the overclocks to ~200FSB, going any higher you loose the SATA
ports.
Celeron D 356
With its smaller manufacturing process this CPU
runs cooler and uses less power, when you step on its tail it overclocks like
crazy even with modest air cooling, reaching speeds which could only be had with
sub zero cooling one year ago. However its reduced cache size makes it slower
than the competition even when running at close to 5Ghz! The new Celeron D will
make an excellent competitor for AMD??в„ўs Sempron which has been regarded as
the budget-friendly CPU??¦ until now?
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