|
Motherboard |
DFI NF4 SLI Infinity |
| CPU |
AMD
Athlon64
San Diego Core 3700+
200Mhz/1MB @ 2.2GHz |
Storage
(Optical) |
Toshiba
1612 DVD (IDE)
Plextor Plexwriter Premium (IDE) |
Storage
Hard Drive |
Hitachi
Desktar
7K80 SATA II |
| Multi-Media |
Creative
SoundBlaster
X-Fi Platinum |
| Graphics |
2x eVGA
GeForce 6800GT
SLI ENABLED
GPU: 375 / Memory: 1000 |
and Testing.......
For all phases of testing, the CPU:RAM ratio will
be kept 1:1 to maintain a synchronous overclock. The CPU and HTT
multipliers will be changed when necessary to maintain system stability.
Only whole number multipliers will be used. The bus speed, raw
CPU speed, and memory timings will be documented. Along the way, I'll be
benchmarking the memory with SiSoftware Sandra's Memory Benchmark and obtaining
a score with Science Mark 2 utilizing its memory benchmark routine as well.
Now, on the with test.
Bus Speed
MHz |
CPU Speed
MHz |
Memory Timings |
Sandra
ALU
FPU |
Science
Mark 2
MB/Sec |
| 200 |
2200 |
2-3-2-5 |
5637 / 5584 |
5404 |
| 233 |
2563 |
2.5-3-3-5 |
6482 / 6410 |
6169 |
| 250 |
2758 |
2.5-3-3-6 |
7005 / 6941 |
6603 |
|
255 ** |
2805 |
3-3-3-8 |
7080 / 7027 |
6738 |
| 255 |
2805 |
3-3-3-6 |
7125 / 7050 |
6773 |
| 260 |
2600 |
3-3-3-6 |
6850 / 6760 |
6546 |
| 266 |
2670 |
3-3-3-6 |
7046 / 6993 |
6739 |
| 270 |
2700 |
3-3-3-7 |
7140 / 7078 |
6784 |
| 275 |
2760 |
3-3-3-7 |
7269 / 7198 |
6893 |
| 280 |
2800 |
3-4-3-7 |
7357 / 7292 |
7013 |
| 285 |
2565 |
3-4-3-7 |
7008 / 6972 |
6573 |
| 287 |
2583 |
3-4-3-7 |
7101 / 7012 |
6667 |
** Notes the default latency
timings for this memory as determined by system BIOS at bootup when all
applicable memory settings are set to AUTO. Corsair has labeled the memory
with 3-4-4-8 timings.
These results really show how far RAM technology has progressed. Since
technical data was not immediately available for this particular set of
memory modules, I had to go to the source to get some behind the scenes
information. The TwinX2048-4400Pro series modules are based on
Infineon rev C silicone
and carry a 2.75 volt requirement. Unlike the PC4000 of yester-year, this
kit allowed me to wrench down the timings when the bus speed was lowered.
Likewise, we were able to ramp up the clock speed to 287Mhz without using
the performance degrading 2T command mode or the printed (and higher) 3-4-4-8 latency
timings. Going above 2.8 volts didn't help me achieve any higher bus speed
or better latency timings.
Conclusion........
The specialists at Corsair say they like to think
of this particular set of
PRO series RAM as their Ultimate kit because it can do exactly what
we showcased in our testing. Though not the tightest of timings at 200Mhz,
2-3-2-5 isn't very far off at all. But this memory carries a PC4400 label
which means this kit isn't intended for 200Mhz applications. While the
bandwidth results themselves are more of a by-product of high CPU speed in
conjunction with the high front side bus, the fact remains that the Corsair
TwinX2048-4400Pro dual channel kit was able to remain stable operating 32Mhz
above its default value. Again, putting emphasis on the 1T command rate and
the 3-4-3-7 timings, all of this was done at default voltage.
Needless to say, we'll be keeping an eye out for this stuff to hit the
retail shelf. Would it be a smart purchase? Without a doubt! The projected
site picture of future releases from AMD still have their processors using
existing 184-pin DDR modules well into calendar year 2007, which appears to
be their timeframe to make the switch to DDR2. It was Intel that made the
first switch and plunged into RAMBUS searching for more memory bandwidth.
Reeling from that decision (and the marketing constraints) Intel is
utilizing DDR2, all while AMD is still having great success with DDR.
So, back to original question: Yes, DDR is still a very solid technology to
base your upgrade decisions upon. Along those lines, modern entertainment
titles benefit greatly with more than 1 Gigabyte of memory installed. So if
you're an overclocking gamer that plans to build or upgrade your AMD based
system, this dual channel kit will certainly not let you down.
|
Club
Overclocker Rating |
|
Innovation: |
9.5
out of 10 |
|
Performance: |
10 out of 10 |
|
Quality: |
10
out of 10 |
|
Stability: |
10
out of 10 |
|
Overclocking: |
9.5 out of 10 |
|
Software/Drivers Pack: |
N/A |
|
Value: |
9.5 out of 10 *** |
|
Overall Rating
|
|
 |
 |
|
Skill Level |
|
Project Skill Level (10 being hardest) |
2
out of 10 |
*** The Value rating of this memory will be
re-evaluated when it is widely available on the market.