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AMD Phenom II X2 555 Black Edition 3.2 GHz Socket AM3 Processor Review

AMD Phenom II X2 555 Black Edition 3.2 GHz Socket AM3 Processor Review - PCSTATS
Abstract: AMD is kicking off 2010 by introducing new low-power versions of some its most popular processors and bumping up the speed of a select few Phenom II and Athlon II CPUs. Today PCSTATS is looking at the 3.2GHz AMD Phenom II X2 555 Black Edition processor.
 80% Rating:   
Filed under: CPU / Processors Published:  Author: 
External Mfg. Website: AMD Jan 26 2010   Julian Apong  
Home > Reviews > CPU / Processors > AMD Phenom II X2 555 Black Edition

Hitting 4 GHz! - CPU Overclocking Report

Overclocking Results:
Stock Max. OC
Processor Speed: 3.2 GHz

3.995 GHz

Multiplier / Bus Speed: 16x 200MHz

17x
235MHz

OC by Multiplier Only

Processor Speed: 3.2 GHz

3.92 GHz

Multiplier / Bus Speed: 16x 200MHz

19.5x 200MHz

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

AMD Black Edition processors have a special place in our overclocking hearts thanks to their unlocked multipliers. An unlocked multiplier opens up a whole world of options, a chip like the 3.2GHz Phenom II X2 555 Black Edition can be punched up without increasing the motherboard bus speed one bit!

The Phenom II X2 555 BE CPU is especially interesting because it's based on AMDs revision C3 silicon, which has PCSTATS crossing its fingers for some big overclocking numbers from this processor. Will it be able to hit 4GHz?

As you probably know, overclocking can be accomplished by adjusting one or two values in an AMD Black Edition processor; the CPU Multiplier or Motherboard Bus Speed. Mathematically the Phenom II X2 555 Black Edition's 3.2GHz clock speed is calculated by multiplying its 16x multiplier by its base 200MHz clock, equaling 3.2GHz (16x200 = 3200MHz). Raising the multiplier to say, 19x, would result in a 19x 200MHz configuration and an overclocked CPU speed of 3.8GHz. Simple!

Before we began our overclocking adventures, the Corsair XMS3-1600C9 memory used in PCSTATS' test system was configured to run in DDR3-800 MHz mode (from DDR3-1066) so it wouldn't hold the CPU back. With the socket AM3 Phenom II X2 555 Black Edition chip locked and loaded into Gigabyte's GA-MA790FXT-UD5P motherboard, we set about overclocking by Multiplier alone at first.

Overclocking by CPU Multiplier

Starting with the CPU multiplier first (set tp 16x by default), PCSTATS quickly overclocked AMD's Phenom II X2 555 BE processor by increasing this value to 16.5x, 17...17.5...18...18.5....19... and finally 19.5x before the system gave in to instability and BSOD's. PCSTATS tried 20x multiplier, but the PC barely POSTed before crashing into endless reboots. Still, with the multiplier set to 19.5x, that resulted in a very nice overclock from 3.2GHz to 3.92GHz. That's just under the 4GHz we had hoped to achieve.

Overclocking by Motherboard Bus Speed

Having reset the multiplier back to 16x, PCSTATS set about overclocking the dual-core Phenom II X2 555BE chip by bus speed alone. And to make a long story short, the processor was good till 240MHz. That yielded us an overclocked result of 3.84GHz. For the final round of overclocking tests the motherboard bus speed and CPU multiplier were both reset to default, and then we set about overclocking once again. In a matter of minutes the bus was up to 235MHz and multiplier at 17x, resulting an impressive overclock to 3.995GHz. We tried several combinations of higher bus speed and higher multiplier, but the PIIX2-555BE just wasn't up for it.

In the end, the maximum overclock result PCSTATS achieved from the 3.2GHz AMD Phenom II X2 555 BE processor was 17x235MHz = 3.995GHz. That's an increase of 795MHz from the revision C3 silicon, and a hefty boost in performance! Prelude to Benchmarks

For this review PCSTATS is running the benchmark suite in both Microsoft Windows Vista and Microsoft Windows 7 operating systems. For the most part, benchmark results are not significantly different between the two operating systems, although certain tests do see advantages under Windows 7. Over the following page we'll be running AMD's 3.2GHz dual-core AMD Phenom II X2 555 Black Edition processor though PCSTATS standard set of gaming, productivity, and multi-threaded processor benchmarks. There are a wide variety of gaming and synthetic benchmarks here to illustrate what kind of performance boost users can expect from the latest quad-core socket AM3 AMD processor. Please take a moment to look over PCSTATS test system configurations before moving on to the individual benchmark results on the next several pages.

PCSTATS Test System Configurations
Test System Reference System #1 Reference System #2 Reference System #3
Processor: AMD Phenom II X4 965 Black Edition
AMD Phenom II X4 955 Black Edition
AMD Phenom II X4 910e Black Edition
AMD Phenom II X3 720 Black Edition
AMD Phenom II X2 555 Black Edition
AMD Phenom II X2 550 Black Edition
AMD Athlon II X4 635
AMD Athlon II X4 620
AMD Athlon II X3 435
AMD Athlon II X2 250
AMD Athlon II X2 240e

Intel Core i5 750

Intel Core i7 920 Intel Core 2 Duo E8500
Intel Core 2 Duo E8400
CPU Process Technology: 45nm 45nm 45nm 45nm
Socket: Socket AM3 Socket LGA1156 Socket LGA1366 Socket LGA775
Clock Speed:

17x 200MHz = 3.4 GHz (965 BE)
16x 200MHz = 3.2 GHz(955 BE)
13x 200MHz = 2.6 GHz(910e)
14 x 200 MHz = 2.8 GHz (720 BE)
16.0x 200MHz = 3.2 GHz (555BE)
15.5x 200MHz = 3.1 GHz (550BE)
14.5x 200MHz = 2.9 GHz (AIIX4 635)
13x 200MHz = 2.6 GHz (AIIX4 620)
14.5x 200MHz = 2.9 GHz (AIIX3 435)
15x 200MHz = 3.0 GHz (AIIX2 250)
14x 200 MHz = 2.8 GHz (AIIX2 240e)

20x 133MHz = 2.66 GHz 20 x 133 MHz = 2.67 GHz 9.5 x 333 MHz = 3.16GHz (E8500)
9 x 333 MHz = 3.0 GHz (E8500)
Motherboard: Gigabyte GA-MA790FXT-UD5P (AMD 790FX) Gigabyte GA-P55-UD6 (Intel P55)
MSI X58 Platinum (X58 Express)

MSI X48 Platinum (X48 Express)

Videocard: ASUS ENGTS250 DK
(Geforce GTS250)
ASUS ENGTS250 DK
(Geforce GTS250)
ASUS ENGTS250 DK
(Geforce GTS 250)
MSI NX8800GTS-T2D320E
(Geforce 8800GTS)
Memory:

2x2GB Corsair XMS3-1600C9 DDR3
2x1GB Patriot PDC32G1600LLK DDR3

2x2GB Corsair XMS3-1600C8 DDR3 3x2GB Corsair TR3X6G1600C8D DDR3

2x1GB Patriot PDC32G1600LLK DDR3

Hard Drive:

74GB Western Digital Raptor WD740

Optical Drive:

ASUS BC-1205PT-BD

Power Supply:

PC Power & Cooling TurboCool 750W

Heatsink:

Athlon64 K8 Reference Heatsink

Intel Reference 1156 Heatsink Intel Reference 1366 Heatsink Intel Reference 775 Heatsink
Software Setup:

Microsoft Windows Vista Ultimate
Microsoft Windows 7 Ultimate
AMD Catalyst 9.12
nVIDIA Forceware 195.62

Microsoft Windows Vista Ultimate
Microsoft Windows 7 Ultimate
Intel 9.1.1.1019
nVIDIA Forceware 190.62

Microsoft Windows Vista Ultimate
Intel INF 9.1.0.1012
nVIDIA Forceware 182.08

Microsoft Windows Vista Ultimate
Intel INF 9.0.0.1008
nVIDIA Forceware 169.25

Benchmarks:
System Benchmarks:
SYSmark 2007
PCMark Vantage
SiSoft Sandra 2009

Calculation B/M:
Super Pi 1.5
wPrime 2.0
ScienceMark 2.3
WinRAR 3.8
Bibble 5

Rendering B/M:
Cinebench R10
POV-Ray 3.7
SPECviewPerf 10

Gaming B/M:
3DMark06
3DMark Vantage
Cyrsis
FEAR

< Previous Page © 2017 PCSTATS.com Next Page >

 

Contents of Article: AMD Phenom II X2 555 Black Edition
 Pg 1.  AMD Phenom II X2 555 Black Edition 3.2 GHz Socket AM3 Processor Review
 Pg 2.  — Hitting 4 GHz! - CPU Overclocking Report
 Pg 3.  CPU System Benchmarks: SYSMark 2007
 Pg 4.  CPU System Benchmarks: PCMark Vantage
 Pg 5.  CPU Synthetic Benchmarks: Sandra 2009
 Pg 6.  CPU Synthetic Benchmarks: Sandra 2009 Memory
 Pg 7.  CPU Calculation Benchmarks: Super Pi, wPrime2.0
 Pg 8.  CPU Calculation Benchmarks: ScienceMark2.3, WinRAR
 Pg 9.  CPU Rendering Benchmarks: Cinebench R10, Bibble 5
 Pg 10.  CPU Rendering Benchmarks: POV-Ray 3.7
 Pg 11.  CPU Rendering Benchmarks: SPECviewPerf 10
 Pg 12.  CPU Synthetic Gaming Benchmarks: 3DMark Vantage, 3DMark 06
 Pg 13.  CPU Gaming Benchmarks: Crysis
 Pg 14.  CPU Gaming Benchmarks: FEAR
 Pg 15.  The Best Dual-Core Chip for $99?

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