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AMD Athlon64 X2 4800+ Processor Review
AMD Athlon64 X2 4800+ Processor Review - PCSTATS
The Athlon64 X2 4800+ processor we're testing is based on the 'ACBWE' stepping, and was built in week 17 of 2005 so it's literally hot off the presses!
 93% Rating:   
Filed under: CPU / Processors Published:  Author: 
External Mfg. Website: AMD Sep 01 2005   C. Sun  
Home > Reviews > CPU / Processors > AMD Athlon64 X2 4800+

Overclocking the 2.4GHz X2 4800+

Overclocking Results:
stock max. oc
processor speed: 2.4 ghz

3.14 ghz

if you're new to Overclocking and not sure what to do, check out these two excellent Guides for some pointers:
Overclocking the CPU and Memory
Overclocking the Videocard

Over the years, AMD has allowed enthusiasts a lot of freedom to experiment with components although things have tightened up slightly with the release of the Athlon64. Sadly, gone is the full multiplier access in AMD's mainstream products, complete multiplier control is only available in its super high end 'FX' processors.

Considering the amount of heat the Athlon64 X2 4800+ produces while under load (110Watts), it's a perfect opportunity to place it under the freezing Prometeia Mach II GT evaporator. I wanted to get the best performance possible, and as the test memory has been tested up to 270ish running 2-2-2-5 with 3.8V, we kept things running 1:1.

Right from the get-go the Athlon64 X2 4800+ started to have problems at 217 MHz.... weird. The system just kept BSOD'ing while booting WindowsXP. Increasing the CPU voltage to 1.35V seemed to stabilize that, and we were able to continue onwards with the overclocking. The CPU hit another snag at 236 MHz, and once more a voltage increase was the necessary solution. This time the voltage was bumped to 1.4V. At 243 MHz the system had problems POSTing and, you guessed it CPU voltage solved this problem.

To reach the 3.0 GHz mark, the voltage was increased further still to 1.5V. Of course since we were testing the Athlon64 X2 4800+ with a phase change cooler, the system was able to compensate for the increased heat output while still maintaining sub-zero temperatures. If you attempt overclocking with a standard heatsink, we do not recommend increasing the voltage this high. The Athlon64 X2 4800+ produces a heck of a lot of heat.

Never satisfied, we continued to increase the motherboard clock speeds, and in the end we could run the Athlon64 X2 4800+ at 3.14 GHz (262 MHz) 100% stable with 1.7V. As you will see shortly, overclocking did boost performance very nicely in the benchmarks. Be warned though, you had better have a very good cooling solution before attempting anything like this. Now, on to the benchmarks!

PCStats Test System Specs:
system 1 system 2

intel pentium 4 540
intel pentium d 840

athlon64 4000+
athlon64 x2 4800+

clock speed: 16 x 200 mhz = 3.2 ghz 12 x 200 mhz = 2.4 ghz
12 x 262 mhz = 3.14 ghz

gigabyte ga-8anxp-d, i925x
gigabyte ga-81955x royal

dfi lanparty nf4 sli-dr

videocard: msi rx800xt-vtd

msi rx800xt-vtd

memory: 2x 512mb crucial ballistix pc5300

2x 512mb corsair twinx3200xl pro

hard drive: 74gb western digital raptor 74gb western digital raptor
cdrom: msi x48 cd-rw/dvd-rom nec 52x cd-rom
powersupply: vantec stealth 470w vantec stealth 470w
heatsink: thermaltake jungle 512 prometeia mach ii gt (review)
Software Setup

WindowsXP 64
Intel INF
Catalyst 5.6

WindowsXP 64
nVIDIA nForce4 6.53
Catalyst 5.6


SYSmark 2004
Business Winstone 2004
Content Creation 2004
SiSoft Sandra 2005
Cinebench 2003 (32/64 Bit)
Maya Render Test
ScienceMark 2.0 (32/64 Bit)
Super Pi 1.1
Hexus piFast 4.1
POVray 3.1g
Comanche 4
Doom 3

Overclocked tests were run in the 32-bit WindowsXP environment only.

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Contents of Article: AMD Athlon64 X2 4800+
 Pg 1.  AMD Athlon64 X2 4800+ Processor Review
 Pg 2.  — Overclocking the 2.4GHz X2 4800+
 Pg 3.  Benchmarks: SYSMark 2004
 Pg 4.  Benchmarks: Winstone 2004, SiSoft Sandra 2005
 Pg 5.  Benchmarks: Cinebench 2003, Cinebench 2003 64 Bit, Maya Render Test
 Pg 6.  Benchmarks: ScienceMark 2.0, ScienceMark 2.0, Super Pi
 Pg 7.  Benchmarks: Hexus piFast, POVray
 Pg 8.  Benchmarks: PCMark04, PCMark05
 Pg 9.  Benchmark: 3DMark2001, 3DMark05
 Pg 10.  Benchmarks: Comanche 4, UT2003
 Pg 11.  Benchmarks: UT2004, Doom 3
 Pg 12.  Athlon64 X2 4800+ = Fastest. Period.

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