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Corsair 2GB XMS-4400PRO DDR Memory Kit Pictorial Review
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Corsair 2GB XMS-4400PRO DDR Memory Kit

This 2GB XMS-4400PRO TwinX memory kit is Corsair's fastest dual-channel DDR memory kit. Although its SPD is programmed for DDR400 operation at 3-3-3-8, it is certified to run at 550MHz DDR at 3-4-4-8.

Each module also has a huge capacity of 1GB, giving the memory kit a total capacity of 2GB. While many PCs are still shipping with 512MB or even 256MB of memory, many gamers and hardware enthusiasts will welcome the increased capacity with open arms.

With games like F.E.A.R. demanding 2GB of memory for maximum performance, serious gamers will be gunning for large capacity modules like this Corsair memory kit. Even graphics editors will appreciate the increased productivity that 2GB of memory can provide them.

With 2GB memory in the testbed, we tried launching Nikon Capture, an image editing software, with more than twenty RAW images with a resolution of 6 megapixels. Even though it took up more than 700MB of memory, the system easily handled the load!

Of course, Corsair are not only targeting these modules at gamers. They are also targeting these modules at case modders who will definitely appreciate the activity LEDs. But if you do not have a PC enclosure with a side window, this feature will be nothing more than a side note.

But all that performance and bling! bling! do not come cheap. If you want these high capacity, high speed modules with LED activity lights to go, be prepared to pay premium prices for them.

For more details, read our Pictorial Review!

Lowest PriceGrabber Price
Review Pictorial Review
Kit Part Number

• TWINX2048-4400PRO

Module Part Number

• CMX1024-4400PRO

Module Capacity 1024 MB
Module Speed Grade PC-4400
Dual Channel Certified Yes
Rated Memory Clock 275 MHz
Maximum Transfer Rate • 4.4 GB/s
Rated Timings • 3 - 4 - 4 - 8
Supported CAS Latencies 2, 2.5, 3
Rated Command Rate 2T
Data Transfers Per Clock 2
Rated I/O Voltage 2.80 Volts
Module Refresh Rate • NA
Module Power Dissipation NA
Module Interface 184 pins

• Black-anodized XMS PRO aluminium heatspreader

Module Dimensions

• 4.45 cm (1.75 ") tall
• 13.74 cm (5.41 ") long
• 0.76 cm (0.30 ") thick

Module Weight • 82.2 g
• 2.9 oz
Memory Chip Infineon Rev. C DDR SDRAM (HYB25D512800)
Chip Capacity 512 Mbits
Chip Configuration • 64M x 8
Chip Speed Grade • DDR-400 (CL3)
• DDR-333 (CL2.5)
• DDR-266 (CL2)
Chip Rated Timings

CL3 @ 400MHz DDR
• CL2.5 @ 333MHz DDR
• CL2 @ 266MHz DDR

Chip Rated Voltage • 2.3 - 2.7 V
Chip Power Dissipation • 1 Watt
Chip Refresh Rate • 7.8 µs
Chip Package • 60-ball TFBGA
Chip Operating Temperature • 0 °C to +70 °C
Special Features • XMS PRO heatspreader
• 18 activity LEDs
Package Contents

• Two Corsair CMX1024-4400PRO modules
One instruction sheet

Warranty • Lifetime Warranty


* Our New Review System

ARP is committed to developing new ways to improve your experience with us. As part of our continuous efforts to improve the value of our reviews to you, we are implementing a new review system.

This new review system is designed to allow you to quickly receive information on the latest hardware. This new system also allows you to quickly get the gist of the review without reading through it. This can be very useful, especially in situations where you need to make a quick purchase decision.

In this new system, we start with a Product Overview whenever a company sends us a press release about their latest product. We shift through extraneous PR-talk to create a straightforward summary of the product's features as well as specifications. This allows you to quickly find out all the pertinent details about the product, without reading through official press releases.

When we receive the product for review, we will quickly take photos of it and create a Pictorial Review. The purpose of a pictorial review is to allow you, the reader, to quickly examine the product visually. It may help you make better purchase decisions, especially if you cannot wait for the full review.

After thorough testing, we will post a Comprehensive Review of the product. This adds on to the pictorial review with comprehensive test results and our final conclusion on the product.

But no matter whether you are reading a Pictorial Review or a Comprehensive Review, you can always read the summary of the review as well as examine the product's specifications right on the first page. In all our new reviews, we will maintain the first page as a Product Overview page. If the product is listed in PriceGrabber, you can also check out the lowest price online.

We hope this new review system will make your experience a lot more enjoyable and informative!


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