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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 |
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8GB Memory Stick PRO Duo | $119.99 | |
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4GB Memory Stick Pro Duo | $59.99 | |
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2GB microSD Card | $7.95 | |
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8GB Cruzer Micro USB U3 Flash Drive | $49.99 |
- PC Memory: Just the Facts
- The New Arms Race: DDR3-1800 RAM
- Hardcore DDR2 RAM by Corsair, G.Skill, OCZ and Patriot
- Overclocking 9 Value-Priced DDR2-800 Kits
- Corsair's PC10000 Super-Ober-Uber-RAM Sets Sails
- Corsair's XMS2 Dominator: The World's Fastest DDR2?
- Live Memory Test: Overclock 'Em Till They Crash
- Tight Timings vs High Clock Frequencies
- Navigating the Memory Upgrade Jungle
- In Search of True DDR2 Bleeding Edge Memory
Source: Tom's Hardware US – Keywords: ddr3, 1333, speed, latency, shootout
Topics: Buyer's Guides
Syndication:
Super Talent PC3-10600 CL8
With a model name that actually means something and a brand known for extreme overclocking capabilities, Super Talent's part number W1333UX2G8 2x 1 GB dual-channel kit is an easy choice even before we consider whether or not it's the "best" choice.
This is the same brand that rushed DDR3-1600 modules capable of overclocking beyond a 2 GHz data rate into the market before most competitors had even produced DDR3-1333. On the other hand, medium rated timings of 8-8-8-18 at an extra-high 1.80 volts instills far less enthusiasm for these "mid-speed" parts. Only testing will prove whether or not these can live up to Super Talent's great overclocking reputation.
Super Talent's SPD table doesn't include any DDR3-1333 (667 MHz clock speed) value, and the modules are instead electronically labeled as DDR3-1066 parts. This means that most systems will automatically configure DDR3-1066 values.
Super Talent is the only brand in this comparison to provide Intel XMP SPD extensions, which work like EPP (Enhanced Performance Profiles) familiar to DDR2 enthusiasts by allowing select boards to automatically configure higher-than-standard voltage for an overclocked setting. In this case, Super Talent allows its DDR3-1333 to be automatically overclocked to DDR3-1600 at an incredibly high 2.00 volts.
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"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
Bandwidth = Rate at which you can get the "goodies"
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?