Shop for Computers
4GB Extreme III SDHC Memory Card 4GB Extreme III SDHC Memory Card

Compare the top 5 lowest prices by hovering your mouse over the product names on the left

$49.99
4GB Memory Stick Pro Duo 4GB Memory Stick Pro Duo $59.99
8GB Memory Stick PRO Duo 8GB Memory Stick PRO Duo $119.99
2GB microSD Card 2GB microSD Card $7.95
8GB Cruzer Micro USB U3 Flash Drive 8GB Cruzer Micro USB U3 Flash Drive $49.99

See More Products...

SPD Timing Comparison

Though we will find the lowest stable timings at increased voltage in our later "lowest stable latency" tests, a chart comparing all the rated timings should help determine which market each module set is really targeting.

Automatic Configuration Data (MHz: tCL-tRCD-tRP-tRAS)
Brand/Model/Part Number Detected SPD Timings Rated Settings SPD Extensions
Aeneon 667: 8-8-8-15 416: 5-5-5-15 DDR3-1333, None
X-Tune DDR3-1333 500: 6-6-6-18 CAS 8-8-8-15,
AXH760UD00-13G 667: 8-8-8-24 1.50 V
750: 9-9-9-27
G.Skill 667: 9-9-9-24 444: 6-6-6-16 DDR3-1333, None
PC3-10600 592: 8-8-8-22 CAS 9-9-9-24,
F3-10600CL9D-2 GBNQ 667: 9-9-9-24 1.50-1.65 Volts
Kingston 667: 8-8-8-24 416: 5-5-5-15 DDR3-1333, None
ValueRAM PC3-10600 500: 6-6-6-18 CAS 8-8-8-24,
KVR1333D3N8/1G 583: 7-7-7-21 1.50 Volts
667: 8-8-8-24
Kingston 533: 7-7-7-20 457: 6-6-6-18 DDR3-1333, None
HyperX PC3-11000 533: 7-7-7-20 CAS 7-7-7-20,
KHX11000D3LLK2/2G 609: 8-8-8-23 1.70 Volts
Mushkin Enhanced 667: 9-9-9-24 444: 6-6-6-16 DDR3-1333, None
EM3-10666 518: 7-7-7-19 CAS 9-9-9-24,
996583 667: 9-9-9-24 1.50 Volts
OCZ Technology 667: 7-7-7-20 476: 5-5-5-15 DDR3-1333, None
PC3-10666 Platinum Edition 571: 6-6-6-18 CAS 7-7-7-20,
OCZ3P13332GK 667: 7-7-7-20 1.80 Volts
761: 8-8-8-23
OCZ Technology 533: 6-5-5-20 533: 6-5-5-20 DDR3-1333, None
PC3-10666 ReaperX 622: 7-6-6-24 CAS 6-5-5-18,
OCZ3RPX1333EB2GK 711: 8-7-7-27 1.85 Volts
Patriot Extreme Performance 533: 7-7-7-20 457: 6-6-6-18 DDR3-1333, None
PC3-10666 Low Latency Kit 533: 7-7-7-20 CAS 7-7-7-20,
PDC34G1333LLK 1.70 Volts
Super Talent 533: 7-7-7-20 533: 7-7-7-20 DDR3-1333, XMP-1600
PC3-10600 CL8 609: 8-8-8-23 CAS 8-8-8-18, CL 8-8-8-28
W1333UX2G8 1.80 Volts 2.00 V
Wintec Industries 533: 8-8-8-20 400: 6-6-6-15 DDR3-1333, None
AMPX PC3-10600 533: 8-8-8-20 CAS 9-9-9-24,
3AHX1333C9-2048K 1.50 Volts

Aeneon and OCZ both provide SPD values in excess of their rated speed, while Super Talent uses Intel XMP automatic overclocking capabilities to go even higher. Kingston and PDP Patriot instead target the low-latency crowd, but OCZ appears to shoot for both markets with both of its products.


Talkback

dv8silencer 05/07/2008 2:45 AM
Hide
-0+
dv8silencer
I have a question: on your page 3 where you discuss the memory myth you do some calculations:


"Because cycle time is the inverse of clock speed (1/2 of DDR data rates), the DDR-333 reference clock cycled every six nanoseconds, DDR2-667 every three nanoseconds and DDR3-1333 every 1.5 nanoseconds. Latency is measured in clock cycles, and two 6ns cycles occur in the same time as four 3ns cycles or eight 1.5ns cycles. If you still have your doubts, do the math!"

Based off of the cycle-based latencies of the DDR-333 (CAS 2), DDR2-667 (CAS 4), and DDR3-1333 (CAS8), and their frequences, you come to the conclusion that each of the memory types will retrieve memory in the same amount of time. The higher CAS's are offset by the frequences of the higher technologies so that even though the DDR2 and DDR3 take more cycles, they also go through more cycles per unit time than DDR. How is it then, that DDR2 and DDR3 technologies are "better" and provide more bandwidth if they provide data in the same amount of time? I do not know much about the technical details of how RAM works, and I have always had this question in mind.
Thanks
Deleted profile 06/27/2008 2:08 AM
Hide
-0+
Latency = How fast you can get to the "goodies"
Bandwidth = Rate at which you can get the "goodies"
Deleted profile 06/27/2008 11:23 AM
Hide
-0+
So, I have OCZ memory I can run stable at
7-7-6-24-2t at 1333Mhz or
9-9-9-24-2t at 1600Mhz
This is FSB at 1600Mhz unlinked. Is there a method to calculate the best setting without running hours of benchmarks?

Note You are going to post a comment as anonymous.