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March 8, 2009 by Lawrence Lee
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Product
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Asus EAH4870
MATRIX /HTDI/512MD5
PCI-E Graphics Card
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Manufacturer
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Street Price
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US$245~295
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For most high powered cards, the conventional cooler consists of a copper base-plate
connected to a mass of aluminum fins via heatpipes. While this is an effective
way to draw heat away from a hot GPU, the method employed to get rid of all
this heat is what typically makes these cards noisy — a loud blower fan
with a plastic housing covering the entire unit to ensure air is forced out
the back of the case rather than being scattered around the interior. It takes
a significant amount of airflow to make this model work, especially when the
GPUs in question pull more than 100W worth of power.
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Asus HD 4870 Matrix next to a reference HD 4870
1GB sample from ATI. Both cards measure 24.1 cm, but Matrix weighs
only 550g compared to ATI's 800g.
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Asus' Radeon HD 4870 Matrix.
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The Asus Radeon HD 4870 Matrix takes a different approach, utilizing
two downward-blowing fans without the restrictive shroud. This gives the heatsink
more room to "breathe" and provides the GPU and board components with
direct airflow. It also potentially cuts the amount of work each individual
fan has to do. By all accounts, it should be a quieter, cooler card. The Radeon
HD 4870 GPU is rated at 125W TDP according to ATI — a prime candidate for an improved cooling
system.
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ATI Radeon HD 4870 1GB specifications according to GPU-Z.
The HD 4870's reference speeds are 750MHz / 900MHz.
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Asus HD 4870 Matrix specifications.
GPU and memory clocks are 20MHz higher.
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Our sample came as a bare card without a box or accessories. According to the
specification sheet, the retail version ships with a component-out cable, DVI
to VGA adapter, and DVI to HDMI adapter.
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