Crucial BLS4G3D1609DS1S00 4GB DDR3 1600MHz UDIMM Memory

Name: Crucial BLS4G3D1609DS1S00 4GB DDR3 1600MHz UDIMM Memory
Brand: Crucial
SKU: BLS4G3D1609DS1S00

Overview

The Crucial Ballistix Sport BLS4G3D1609DS1S00 is a 4GB DDR3 UDIMM operating at 1600 MT/s (PC3-12800) with CL9-9-9-24 timings. In the context of DDR3 desktop platforms, 1600 MHz is the mainstream performance tier — fast enough to fully utilize the memory bandwidth available on Intel Sandy Bridge, Ivy Bridge, and AMD Piledriver-era platforms, without requiring overclocking headroom beyond what standard motherboards support. The XMP profile simplifies configuration: one BIOS toggle promotes the module from its default JEDEC 1333 MHz speed to the rated 1600 MHz with correct timings applied automatically. The aluminum heat spreader is a practical thermal management feature rather than a cosmetic addition — it passively dissipates heat during sustained memory-bandwidth workloads, maintaining consistent performance without thermal throttling.

This module targets system builders performing a budget upgrade on an existing DDR3 platform rather than new builds. Adding 4GB to a system running on the stock 2-4GB that shipped with older desktops or pre-built machines provides immediate, tangible responsiveness improvements for multitasking, web browsing, and light productivity workloads. The strongest configuration for this module is a matched dual-channel pair: two 4GB sticks running in dual-channel mode doubles available memory bandwidth compared to a single module and is particularly beneficial for systems relying on integrated graphics. Crucial's manufacturing reputation for standards compliance means this module is a low-risk purchase for any DDR3-compatible platform — predictable, reliable, and broadly compatible without hunting through motherboard QVL lists.

Key Features

Improved performance for gamers, enthusiasts and mainstream users

Integrated Aluminum heat spreader

Certified Intel XMP profiles for easy configuration

Premium-quality RAM

Industry Standard specifications

Specifications

Capacity

4GB

Memory Type

DDR3

Speed

1600 MT/s (PC3-12800)

Latency

CL9 (9-9-9-24)

Form Factor

UDIMM, 240-Pin

Error Correction

Non-ECC

Heat Spreader

Integrated Aluminum

XMP Support

Yes (Intel XMP certified)

Brand

Crucial

Model

BLS4G3D1609DS1S00

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Pros & Cons

👍 Pros

The XMP profile enables one-click BIOS configuration to the full 1600 MHz rated speed, eliminating manual timing entry that trips up less experienced builders.
At 1600 MT/s (PC3-12800), this module delivers the sweet spot for DDR3 performance — fast enough to provide genuine headroom for everyday multitasking and light gaming on integrated graphics platforms.
The integrated aluminum heat spreader provides passive thermal management during sustained loads, helping maintain consistent clock speeds without throttling in full-load scenarios.
Crucial's industry-standard specification compliance means this module slots into a broad range of DDR3 motherboards without compatibility surprises.
As a UDIMM (unbuffered) module, it's compatible with the standard desktop platform — no registered or ECC infrastructure required, which keeps cost and complexity down.

👎 Cons

At 4GB, this module is a minimum viable capacity for modern Windows 10/11 installations — a single module leaves little headroom for multitasking beyond light productivity use without a second module.
Non-ECC memory provides no error correction — in workloads where data integrity is critical (scientific computing, financial calculations), bit-flip errors go undetected and uncorrected.
DDR3 is a legacy standard; no current-generation Intel or AMD platform supports it, meaning this module is upgrade-compatible only within existing older builds and cannot be carried into a new platform migration.
Running as a single module in single-channel mode halves the available memory bandwidth compared to a matched dual-channel pair — a bottleneck particularly noticeable in integrated graphics workloads.
CL9 is a modest latency for a 1600 MHz module — enthusiasts who enabled XMP on this kit with tighter-latency expectations may find it performs at the mainstream tier rather than the performance tier.

Frequently Asked Questions

Is this module compatible with Intel and AMD platforms, and what socket types does it support?

DDR3 UDIMM is a broadly compatible standard supported across Intel platforms (LGA 1150, 1155, 1156) and AMD platforms (AM3, AM3+) from that era. Confirm your motherboard's DDR3 compatibility and maximum supported speed before installing — consult your board's QVL if available.

What does CL9 latency mean in practice, and does it matter for everyday computing performance?

CL9 (9-9-9-24) represents the number of clock cycles the memory controller waits between issuing a read command and receiving data. At 1600 MHz, CL9 delivers a real latency of around 11.25 nanoseconds — functional for mainstream use, though lower-latency kits (CL8, CL7) offer marginal improvements in memory-intensive workloads.

Does the XMP profile auto-configure the speed to 1600 MHz, or does BIOS setup require manual steps?

XMP (Extreme Memory Profile) lets you enable the rated 1600 MHz speed with a single BIOS toggle rather than manual frequency and timing entry. Without enabling XMP, the module defaults to JEDEC standard speeds (typically 1333 MHz) — enable XMP to get the full 1600 MHz rated performance.

Can I use a single 4GB module, or do I need a matched pair for optimal performance?

A single module runs in single-channel mode. Pairing two identical 4GB modules enables dual-channel operation, effectively doubling memory bandwidth — a meaningful performance improvement in GPU-integrated graphics systems and memory-bandwidth-sensitive workloads. A matched pair is recommended for best performance.

Does the aluminum heat spreader affect clearance with large CPU coolers or low-profile chassis?

The integrated aluminum heat spreader adds modest height to the module. In most full-size and mid-tower builds, clearance is not an issue. In low-profile cases or with oversized tower coolers, confirm slot clearance before installation — measure against the module's installed height.