OCZ PC2-6400 Titanium 2Gb DC Kit Page: 1
Introduction and Packaging

OCZ Technology
first entered the memory market in August 2000, and their vision was built around the determination to manufacture the best high speed DDR and RDRAM available. OCZ was founded by enthusiasts, for enthusiasts, and their commitment to the end-user was paramount in achieving their goal.

Seven years on, OCZ Technology has become the innovator and not the immitator in many areas, particularly with their recent branching out into mainstream enthusiast hardware. But anyway, I'll let OCZ tell you what it does best:

We at OCZ diligently work to improve communication with CPU and motherboard chipset manufacturers prior to the release of their products. Only in this manner can we fine-tune our memory's SPD settings, ensuring a synergistic relationship between the memory module, memory controller, and microprocessor. In today’s rapidly evolving semiconductor industry, such communication is not simply research, but a necessary component of our manufacturing process.

At OCZ Technology, one of their main aims is to ensure customer satisfaction:

At OCZ we have one primary goal, and it is to make sure that every customer is 110% satisfied. Every employee at OCZ is dedicated to accomplishing this goal. Our engineers are constantly developing the fastest and best performing products. Our finance department works every angle to bring customers our product at the best price. Our marketing department ensures all the information needed to make an informed purchase is available and presented in an easy to understand format. The technical support department constantly studies and tests the latest hardware to be as informed as possible to help you with any issue you may have. Our customer service department is filled with customer satisfaction fanatics who will refuse to let you be unsatisfied.

Today, I have been fortunate enough to have been asked to review OCZ's PC2-6400 Titanium EPP-Ready Dual Channel DDR2 RAM . So without further delay, let's get acquainted with our review subject.

OCZ DDR2 PC2-6400 Titanium EPP-Ready Dual Channel

Most current memory manufacturers appear to prefer packaging their modules in clear plastic blister packs. OCZ's packaging format is no different. Although the clear blister pack clearly shows off the new modules virgin appearance very nicely, I do have some doubt in its integrity if subjected to heavy handling in the post. However, I must say though to OCZ's credit; these review modules made it safely from the otherside of the planet to Australia in perfect condition.

OCZ Titanium front of pack OCZ Titanium rear of pack

The packaging itself is surprisingly simplistic, particularly coming from a company as well known as OCZ. The rear of the blister pack has the usual blurb about customer support; commitment to quality; lifetime warranty, and performance...Along with recommendations from some rather well known names.

Not that inserting RAM modules into DIMM's is rocket science, but OCZ has provided an 'how-to' on the inside of the card insert.

Card insert

Ok enough of the packaging. Let's have a closer look at these badboys, including their specifications.

OCZ PC2-6400 Titanium 2Gb DC Kit Page: 2

The following information has been taken directly from OCZ Technology's website:

*800MHz DDR2
*EPP 4-4-4-15 1T
*Non-EPP 5-4-4-15 2T
*Available in 1024MB Modules and 2GB (2x1024) Dual Channel Kits
*Titanium XTC* Heatspreader
*OCZ Lifetime Warranty
*2.1 Volts
*240 Pin DIMM

Special Features
*Enhanced Performance Profiles (EPP)
*2.3V EVP

Part Numbers
2GB (2x1024) D/C Kit PN - OCZ2T8002GK

OCZ Titanium up close and personal

A Closer Look

In this day and age it's great to see manufacturers like OCZ optimising their RAM for particular chipsets, and the PC2-6400 Titanium EPP-Ready Dual Channel sticks are no different. This 2Gb kit is in fact optimised for Nvidia's nForce 590 SLI chipset. The way that OCZ achieved this was through their new EPP-Ready (Enhanced Performance Profiles) memory modules. Essentially, the module actually has two programmed speeds; one when run on an optimised board (NVidia 590 SLI) and another for other boards based on competing chipsets.

OCZ PC2-6400 Titanium memory modules are programmed to boot at 800MHz DDR2 with supremely fast timings of 4-4-4 1T on on AM2 nForce 590 SLI platforms. Only motherboards equipped with the custom-designed BIOS, such as those designed for NVIDIA nForce 590 SLI MCPs, can detect the optimized SPD profiles and ensure the memory functions under the best possible conditions. Because the PC2-6400 Titanium modules are capable of accepting one command per clock cycle (1T), bus contention issues are solved and memory performance is increased by a considerable amount.

Another specific feature that OCZ has increasingly evolved into their memory modules is E.V.P (Extended Voltage Protection). Essentially, E.V.P is:

...a feature that allows performance enthusiasts to use a VDIMM of 2.3V ± 5% without invalidating their OCZ Lifetime Warranty.

It's a nice touch that you can pump some more volts into these modules without voiding your lifetime warranty.

OCZ Titanium side by side OCZ Titanium

The PC2-6400 Titanium EPP-Ready Dual Channel modules utilise OCZ's patented XTC heatspreader. The XTC heatspreaders ensure that the thermal management of memory modules is promoted through greater airflow and by means of micro-convection throughout what is usually the dead air space inside conventional heatspreader designs. In this manner, build-up of heat is avoided and thermal dissipation of the memory components is offloaded more efficiently through the honeycomb design. At the same time, mechanical stability is maintained.

OCZ Titanium top view Titanium and GSKILL comparison

I have taken the liberty of throwing in a GSKILL module in order to illustrate the comparative difference between the heatspreaders. Hmmm, I wonder which will manage heat more efficiently?

After gently coercing the heatspreader off we can see the DDR2 RAM chips quite clearly. The XTC heatspreaders were stuck to the RAM chips using double sided thermal tape - extremely effective and very hard to remove.

OCZ Titanium RAM chips

The identification of these RAM chip numbers was extremely difficult. But, taking an educated guess, I would suggest that these are in fact re-badged ProMOS chips on an Brain Power PCB. For those of you interested, the identification numbers were:

X42M120840L - 25

Titanium installed SPD turned off

Installed, they look quite at home in my PC.

Due to the SPD identifying modules incorrectly from time to time, I have taken the liberty of disabling it. And yes it identified my Titanium modules as 5-6-6-15.

Now that we've gotten closer acquainted with our review subject, let's see how well they perform.

OCZ PC2-6400 Titanium 2Gb DC Kit Page: 3
Test Setup

Intel Core2Duo E6600 "Conroe"
Asus P5B Deluxe wifi/ app (Configure DRAM timing by SPD turned off)
Graphics Card:
ASUS EN8800 GTS 640Mb
Hard Disks:
2x Western Digital 80gb SATA-II 8mb Cache (RAID0)
Power Supply:
Silverstone ST60F 600W PSU
Operating System:
Windows XP SP2

The first test involved ensuring that the memory could run stable at stock speeds. This may seem a bit of a strange test, but unfortunately some modules we've tested here at OC3D in the past have fallen over at this first hurdle. I'm pleased to say that the OCZ Titanium passed the stock testing with flying colours, managing to run at 5-4-4-15 / DDR2-800 with 2.1v on our Asus P5B Deluxe test bed.

I would have liked to have run these modules at (1T) but unfortunately the P5B Deluxe's bios doesn't allow setting the Command Rate to either 1 or 2T. Potential customers looking at purchasing this RAM could do well to invest in a motherboard like the ASUS P5N-E as a minimum. I have included 4-4-4-15 (2T) benchmarks in this review, but bear in mind that at 4-4-4-15 (1T), the performance would typically be better by around 3-5% in most cases.

Although I must say, when I first inserted the modules into slot 1 and 2 (yellow on a P5B) my computer wouldn't boot. I then tried them in slots 3 and 4 they fired up straight away. After approximately 30 mins of testing I returned the modules to slot 1 and 2 and they worked flawlessly.

4-4-4-15 (2T) Timings @ Stock Speed (400Mhz / 2.1v)

4-4-4-15 (2T) stock speed memory 4-4-4-15 (2T)

5-4-4-15 (2T) Timings @ Stock Speed (400Mhz / 2.1v)

CPU 5-4-4-15 (2T) Memory 5-4-4-15 (2T)

5-5-5-15 Timings @ Highest Frequency (555Mhz / 2.3v)

CPU highest frequency Memory highest frequency

Without sacrificing the memory latency I set out to find out the maximum frequency that these modules were capable of. I was able to push the modules up to 550Mhz (DDR2-1100) at 2.3v. A great result for memory rated at 800Mhz out of the box. At 3330.2Mhz the modules hit a wall due to reaching their maximum warranted voltage. I felt the modules still had some life in them, but any further than 2.3v would have voided the warranty.

Lowest Latency @ Stock Frequency: 4-3-3-12 / 400mhz / 2.25v

Lowest latency cpu Memory lowest latency

It is well known that gamers prefer to run their memory at low latencies (rather than high frequencies) as this is an easily tweakable setting and provides decent benefits in most games. After a little tweaking the modules managed impressive timings of 4-3-3-12 - not a bad result for modules designed to run at a little more relaxed timings of 5-4-4-15 on a non-EPP based motherboard.

For the benchmark phase of our review, the OCZ PC2-6400 Titanium DC 2Gb kit was subjected to popular benchmarks at OC3D in order to illustrate outright performance. All benchmarks were run three times and an average taken to guarantee uniformity of the results. Now let's head over to the next page to see how the modules performed in the benchmarks.

OCZ PC2-6400 Titanium 2Gb DC Kit Page: 4

From the graphs below we can see that the Intel Core2Duo processor and P5B Deluxe chipset combination does not suffer from any kind of memory speed bottleneck and the larger speed increases can only be obtained by increasing the CPU speed.

Everest Read Score Everest Write Score
Everest Latency Score Super-Pi Score

SiSoft Sandra further reinforced Everest's results, by illustrating the potential bandwidth and low latency at DDR2-550 speed.

Everest Bandwidth Score Everest Latency Score

Both the CS:S Stress Test and 3DMark06 certainly illustrated the benefits that the increased bandwidth provided by the OCZ PC2-6400 Titanium modules. You can see from the graph's below that although the tighter timings performed well under the CS:S stress test; they suffered under 3DMark 06.

CSS Stress Test 3DMark 06

Let's head over to the conclusion page to see just how well the OCZ PC2-6400 Titanium 2Gb Kit performed in our review.

OCZ PC2-6400 Titanium 2Gb DC Kit Page: 5

The OCZ PC2-6400 Titanium EPP DC 2Gb kit is a worthy addition for either the gamer or overclocker on a budget. Straight out of the box and ramping up the FSB on an Intel based motherboard produced better than average results, especially considering that this RAM is actually rated at 800Mhz. Sure the Titanium's chips aren't highly sought after Micron D9, but the ProMOS variant certainly give a very respectable account for themselves.

Unfortunately, due to not owning an nForce 590 based motherboard, I was unable to compare results. But I'd wager that the Titanium would perform just as admirably...especially with the additional benefit of being able to run CAS 4-4-4-15 1T latency with Enhanced Performance Profiles (EPP). The 1T command rate should give the EPP modules a boost over standard memory's 2T command rate.

Further, kudos to OCZ for providing the ability to run this ram up to 2.3v without voiding the warranty.

Summing up the overall performance of the OCZ PC2-6400 Titanium EPP XTC 2Gb kit is an absolute no-brainer. The modules are extremely sexy, they perform well out of the box and stay remarkably cool (thanks to their XTC heatspreaders); and they are extremely well priced.

Priced at around £128.66 at time of review from Komplett these modules are definitely recommended for someone who's looking for performance on a budget.


Can run tight timings of 4-4-4-15 1T (nForce 590i motherboard reliant)
+ Very respectable overclock from DDR2-800 to DDR2-1100
+ Priced to sell
+ Lifetime warranty and EVP up to 2.3v.

Initially a little fickle with my P5B Deluxe

Recommended Award Value For $$ Award

Special thanks to OCZ for supplying the review sample

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