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Kingston HyperX DDR3-1625 2GB Memory Kit Review - ThinkComputers.org

Memory

Product: Kingston HyperX DDR3-1625 2GB Memory Kit
Date: March 13, 2008
Author: Frank Stroupe
Edited By: Ashley Donaldson
Provided By: Kingston
Pages: 1 2 3 4 5
Discussion: Discuss in Forums



Introduction

After a quick look at a couple of my favorite online hardware retailers, I was a little surprised to find that DDR3 2-gig kits have broken the $200 barrier. Of course, all of the kits I found at the sub-$200 price were PC3-8500 (DDR3-1066), but that will help many to decide to take that step into building a DDR3 system.

At this point in time, being the 1:2 speed for a 333 FSB, DDR3-1333 is the high performance standard speed for DDR3 memory, and everything above that is primarily for overclocking headroom. Incredibly, DDR3 speeds of 1600 mHz to 2000 mHz are already out there to satisfy the serious overclocker, memory speeds that were inconceivable to most of us a year ago.

Recently I reviewed the Kingston HyperX PC3-11000 2 gig kit. Kingston considers it an entry-level enthusiast DDR3 HyperX kit. Today I will be looking at the PC3-13000 HyperX 2 gig kit, which at present, is considered the "sweet spot" of DDR3 memory by some. Will the HyperX PC3-13000 impress us more than the HyperX PC3-11000 did? Read on to see.

Kingston is one of the oldest names in the PC world, and they are the largest manufacturer of system memory purchased by third party buyers, people replacing the memory in their rigs. I remember hearing of Kingston in the late 1980s, a time when most PCs only had a megabyte or two of system memory, and I used their memory in my first RAM upgrade about a decade later.

Features

- JEDEC standard 1.5v +/- 0.0075v Power Supply
- VDDQ = 1.5v +/- 0.075v
- 533Mhz fCK for 1066 Mb/sec/pin
- 8 independent internal banks
- Programmable CAS Latency: 5, 6, 7, 8, 9, 10.
- Posted CAS
- Programmable Additive Latency: 0, CL-2, or CL-1 clock
- Programmable CAS Write Latency (CWL) = 7(DDR3-1066)
- 8-bit pre-fetch
- Burst Length: 8 (Interleave without any limit, sequential with starting address "000" only), 4 with tCCD=4 which does not allow seamless read or write [either on the fly using A12 or MRS]
- Bi-directional Differential Data Strobe
- Internal(self) calibration: Internal self calibration through ZQ pin (RZQ: 240 ohm +/- 1%
- Average Refresh Period 7.8us at lower than TCASE 85C, 3.9us at 85C < TCASE .95C
- Asynchronous Reset
- 1066Mbps CL7 doesn't have backwards compatibility with 800Mbps CL5
- PCB: Height 1.180" (30mm), double sided component

Performance:

- CL(IDD): 7 cycles
- Row Cycle Time (tRCmin): 50.63ns (min)
- Refresh to Active/Refresh Command Time (tRFCmin): 110ns
- Row Active Time (tRASmin): 37.5ns (min)
- Power: TBD W (operating per module)
- UL Rating: 94 V -0
- Operating Temperature: 0C to 85C
- Storage Temperature: -55C to 100C

The HyperX is packaged in the familiar hanging blisterpack that all Kingston dual-channel kits come in, the package is sealed by the label. No tools are required to open the package.


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