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Test Setup

Overclocking 9 Value-Priced DDR2-800 Kits
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Designed specifically to get the greatest features and best performance for its price, the following mid-budget system formed the basis for this "bang for the buck" memory comparison.

System Hardware
Processor Intel Core 2 Duo E6300
(Conroe 65 nm, 1.86 GHz, 2 MB L2 Cache)
Motherboard Asus P5B Deluxe WiFi/AP Edition, BIOS 0910
Hard Drive Western Digital Raptor WD1500ADFD
150 GB, 10,000 RPM, 16 MB Cache, SATA 150
Networking Dual Gigabit (Onboard, Disabled)
Graphics Cards Foxconn 7900GS, P/N : FV-N79SM2D2
nVidia GeForce 7900GS - 256 MB
Power Supply OCZ GameXStream OCZ700GXSSLI - 700W
System Software & Drivers
OS Windows XP Professional 5.10.2600, Service Pack 2
DirectX Version 9.0c (4.09.0000.0904)
Platform Driver Intel INF 8.1.0.1010
Graphics Driver nVidia Forceware 91.47
Benchmarks and Settings
PCMark05 Pro Version : 1.1.0
Memory Tests
Windows Media Player 10.00.00.3646
Windows Media Encoder 9.00.00.2980
SiSoftware Sandra 2005 Version 2005.7.10.60
Memory Test = Bandwidth Benchmark

Dropping the CPU multiplier to 6x and using a 2:1 DRAM :CPU bus clock ratio permitted ultra-high memory clock rates at speeds that would have otherwise rendered this system a smoking pile of rubbish. The performance impact will be felt equally at all speeds, making the bandwidth numbers not comparable to other articles, but perfectly proportional with respect to each other.

This Automatic Configuration Data chart shows SPD values detected by CPU-Z version 1.38, as well as those detected by the Asus P5B Deluxe WiFi/AP edition motherboard.

Automatic Configuration Data (MHz : tCL-tRCD-tRP-tRAS)
Model Detected SPD Timings Boot Voltage EPP
A-DATA Extreme 800+ AD2800EU 400 : 5-5-5-18 400 : 4-4-4-12
400 : 4-4-4-11
1.80 V (CAS 5)
2.00 V (CAS 4)
Yes
Buffalo Select PC2-6400 D2U800C-K2G 400 : 5-5-5-18 400 : 5-5-5-18
266 : 4-4-4-12
200 : 3-3-3-9
1.80 V No
Buffalo FireStix 6400 FSX800D2C-K2G 400 : 4-5-5-18 400 : 4-5-5-18
400 : 4-5-5-18
266 : 3-4-4-12
1.80 V (CAS 5)
2.10 V (CAS 4)
No
Crucial Ballistix 6400 BL2KIT12864AA804 400 : 5-5-5-18 500 : 5-5-5-15
400 : 4-4-4-14
1.80 V (CAS 5)
2.10 V (CAS 4)
Yes
Mushkin Standard Value SP6400 996529 400 : 5-5-5-18 400 : 5-5-5-18
266 : 4-4-4-12
1.80 V No
OCZ Gold GX XTC
Revision 2 PC2-6400
OCZ2G800R22GK
400 : 5-5-5-15 400 : 5-5-5-15
333 : 4-5-5-13
270 : 3-4-4-10
1.95 V No
Patriot Extreme Perf.
PDC22G6400LLK
400 : 5-5-5-16 500 : 5-5-5-15
400 : 4-4-4-12
1.80 V (CAS 5)
2.20 V (CAS 4)
Yes
Wintec AMPO
3AMD2800-2G2K-R
400 : 5-5-5-16 400 : 5-5-5-16
266 : 4-4-4-11
200 : 3-3-3-8
1.80 V No
Wintec AMPX C5
3AXT6400C5-2048K
400 : 5-5-5-16 400 : 5-5-5-16
266 : 4-4-4-11
200 : 3-3-3-8
1.80 V No
Wintec AMPX C4
3AXT6400C4-2048K
333 : 5-5-5-15 333 : 5-5-5-15
266 : 4-4-4-12
200 : 3-3-3-9
1.90 V No

Nine memory kits defaulted to 5-5-5 timings for easy booting, settings which further assured the maximum clock speed during these tests. Manually dropping the Buffalo FireStix to 5-5-5-18 kept this competition fair, but any attempt to loosen OCZ Gold GX XTC Revision 2 or Wintec AMPX C5 tRAS to 18 cycles resulted in a boot failure. The later used default SPD timings of 5-5-5-15 and 5-5-5-16, respectively.

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    ojas , July 14, 2011 2:32 PM
    not a single comment in over 4 years... :-|
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