Final Words

A few readers will understand the significance of the performance of the new OCZ EL PC2-8000 XTC memory right now. Generally they will be readers who have tested and understand the limitations of current DDR2 memory. Others will not likely realize how good this OCZ memory, based on the new Micron chips, really is until the market moves to AM2 and Conroe. To be perfectly clear this new OCZ memory is better than the legendary Micron fat-body D chips from the past in every way.

The OCZ EL PC2-8000 XTC performs at the fastest timings possible on current DDR2 platforms at both DDR2-400 and the 1:1 ratio DDR2-533. It also reaches higher than any DDR2 memory we have ever tested, reaching an ultimate DDR2-1100 speed. At all of these higher memory speeds, memory timings and latencies are the lowest we have ever seen with DDR2 memory. It will be very interesting to retest this memory when AM2 and Conroe arrive, simply because current NetBurst technology more than likely obscures the real performance advantages of this new OCZ memory based on the latest Micron chips.

It is clear in our performance charts that 1:1 is not absolutely necessary for the best performance with this fast memory. The sweet spot is a combination of memory speed, possible timings, and the degree of overclock. With these considerations, OCZ has done a masterful marketing job in rating this memory at DDR2-1000. At this speed the overclock to 300 combined with the still aggressive 4-3-4 timings yields impressive performance. Anyone who runs this 2 GB kit at DDR2-1000 to DDR2-1060 with 4-3-4 timings will think they have died and gone to heaven. The performance is that stable and that impressive. It is all the more remarkable when you consider that this is the preferred 2GB kit (2x1GB) instead of the 1GB kit (2x512MB) that normally has an easier time reaching high overclocks.

Some readers will immediately notice that the performance advantage over the excellent Mushkin Elpida and the older Micron chips is not really that much. That is certainly true, but we are comparing some of the best DDR2 memories of today and the past to the new OCZ memory and the OCZ wins almost every comparison. We fully expect the AM2 on-processor memory controller and the Conroe shallower pipes to better demonstrate the advantages of low-latency DDR2. Frankly, much of the potential is lost on NetBurst, but this new memory still tops the charts in performance.

One note of precaution: as pointed out in past memory reviews, huge increases in memory bandwidth usually translate into much smaller gains in real-world gaming performance and other real-world test results. Memory is just one part of the total performance equation. Other components, in particular the video card, have a dramatic impact on final performance of most real-world tasks. You can also expect a bigger difference in performance between this super fast OCZ DDR2 and regular slower DDR2 on the upcoming AM2 and Conroe architectures.

The OCZ EL PC2-8000 XTC seems to perform best at a CAS setting of 4 or 3. We often found we could stabilize performance just by moving down from CAS 5 to CAS 4 in our testing. DDR2-1100 required CAS 5, but we reached near that speed at DDR2-1080 with CAS 4. Voltage is also an important consideration. Anything up to 2.2V appeared to work fine with no cooling issues, but once you venture over 2.2V heat goes up fast. Above 2.2V we would recommend that you run an auxiliary fan with this OCZ memory.

Our advice? If you are buying for a DDR2 system this is the fastest and lowest latency DDR2 memory we have ever tested. It will work well with your current Intel system, and move very well to an even better performing AM2 or Conroe DDR2 system. If you are like most of our readers, you are using an AMD Athlon64 system waiting to see what develops in AM2 and Conroe. You will not have any current use for this terrific DDR2 memory, but it should be the first DDR2 memory to add to your shopping list for the future. There will likely be other DDR2 memory to consider, as we already know Corsair and other enthusiast memory manufacturers are also preparing to ship products based on these new Micron memory chips. Time will tell if the competitors do as well as OCZ at binning and tweaking these new chips.

OCZ EL PC2-8000 is the best performing DDR2 memory ever tested at AnandTech. We expect to receive memory from competitors based on the new Micron chips in the near future. It may be similarly impressive, but OCZ is the first to bring these new Micron DDR2 chips to market. We are pleased to award OCZ EL PC2-8000 XTC our Gold Editor's Choice for the best performing DDR2 memory you can currently buy. This memory provides the lowest DDR2 memory timings possible to DDR2-533. The memory is rated at DDR2-1000 and provides exceptional performance all the way to DDR2-1100 at the fastest timings and lowest latencies seen in any DDR2 memory. OCZ EL PC2-8000 XTC is a very welcome addition to the Memory Market.

The introduction of this impressive new OCZ DDR2 memory provides us with a real tool to exploit the low-latency potential of the upcoming AM2 and Conroe platforms. The timing is just a little early, but it won't be long until this becomes one of the most sought after memories in the world.

Highest Memory Speed (1:1 Ratio) Performance
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  • DoctorBooze - Tuesday, April 4, 2006 - link

    I'm a bit mystified why there's any better performance at any speed over dual-channel DDR2-533 - is it just because the CPU ended up overclocked?

    Am I right in thinking that CAS 2 for DDR2-533 is the same amount of time as CAS 4 for DDR2-1066?

    Also, what's performance like with a single-channel setup using DDR2-1066 since that would also theoretically be a 1:1 configuration, wouldn't it?
  • Calin - Wednesday, April 5, 2006 - link

    The improved performance is based on the fact that RAM is no longer random access memory - it is faster to bring several kilobytes of data forming a single block than to bring several kilobytes of data from separated areas of the memory. And, while the speed to bring 1024 bytes, each 4 bytes from a different area of the memory means that each access is made with delay of (CAS2 + RAS2 + ... + tRAS) multiplied by memory clock is the same as CAS4 + RAS4 + ... + tRAS for a memory that has twice the speed, if you bring a single block, you only need CAS and RAS once, and the rest comes at memory clock, one block at a clock. So, if you make long transfers, you can almost forget about CAS and RAS, and only use the memory speed.
    So, faster memory with higher CAS (Column Address Select) and RAS (Row Adress Select) timings will still move loads of data faster, even if single bytes will go as fast as with slower memory with lower CAS and RAS

    What is CAS and RAS?
    A memory is a huge space of addresses. However, you can not access all those addresses at the same time - memory is accessed in blocks formed by rows and columns. In order to access data from memory, you must be in the correct block (row and column). Once in a block, the data from memory can be read by simple commands (selection of address). If the row, column or both changes, the memory must change the block it shows - so, here are the CAS and RAS timings needed for the memory to select a different block.
  • Visual - Tuesday, April 4, 2006 - link

    ... or amasingly complex
    im just standing here and boggling at the complexity of overclocking intel systems. well, it turns out just as simple as amd when i think about it, but the mem ratios that allow the ram to run faster than the cpu fsb (as opposed to only slower like on the athlons) kinda make it too weird to assimilate :p
    and with ratios,fsb/cpu/mem frequencies,timings and whatnot to consider at once it does get messy for someone unexperienced like me.

    its interesting to see the significant performance differences that the proper settings can bring. in particular, it looks like with a fast memory like this and a proper oc one can get a good 20-30% above stock in gaming performance, and so can match amd systems even with the netburst cpus. who made me think netburst was dead?

    also it makes me think if the conroe benches weren't ran with something like this - very fast memory, low latencies, overclocked fsb. cant be bothered to look for your old article on it though, i'll just wait for the next benches to come up.
  • Calin - Wednesday, April 5, 2006 - link

    My ECS K7S5A (built somewhere in 2002 probably) could run my Duron 600 processor at 100 or 133 FSB, and the memory at 100 or 133 FSB for SDR or 200 and 266 for DDR, independent on each other.
    This is not something new. I remember older systems having the same possibilities.
    The Athlons (Socket A Athlons) were able to run memory faster than the FSB, however, there was an important performance loss because of the increased latency. In some cases, an Athlon on 100MHz FSB was slower with 133MHz memory than with 100MHz memory, as the increased bandwidth advantage was negated by increase in latency
  • Jjoshua2 - Monday, April 3, 2006 - link

    On page three HL2 is reported as over 850 fps on 1:2.
  • Wesley Fink - Monday, April 3, 2006 - link

    We reran and updated the Half life 2 - Lost Coast results after the article was published. The enthusiastic typing error is now corrected.
  • Barbarossa - Monday, April 3, 2006 - link

    Wow, looks fast. I have to wonder if it's available anywhere though. I followed all your links at the top of the article, but those take me to different parts than the one you reviewed, and a quick search at Newegg, ZipZoomFly, and TigerDirect shows that nobody has it in stock.

    Does this part actually exist or is this just a cherry-picked press release part?
  • Wesley Fink - Monday, April 3, 2006 - link

    This memory is currently available at Atacom.com and possibly other sites. More info is at http://www.atacom.com/program/print_html_new.cgi?c...">http://www.atacom.com/program/print_htm...m_code=M....

    It is incredibly expensive at $560 for the 2GB kit.
  • JarredWalton - Monday, April 3, 2006 - link

    It's a brand new part, and it's not yet in our pricing engine. The links at the top are generated by key words from our pricing engine and do not always bring up the appropriate parts. The part numbers you'll want are:

    1x512: OCZ2P1000512EE
    2x512: OCZ2P10001GEEK
    1x1024: OCZ2P10001GEE
    2x1024: OCZ2P10002GEEK

    Availability should commence shortly.
  • Missing Ghost - Monday, April 3, 2006 - link

    quote:

    OCZ2P10002GEEK

    lmao

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