The next silent videocard

Evgenie Rudometov

Rudometov@rudometov.com

On the basis of the firm processing techniques company Gigabyte has developed and has released next silent rather efficient videocard Gigabyte GV-RX16T256V-RH

The modern videocards which are the major components of desktop computers, possess high efficiency. It is provided at the expense of usage of high-frequency units among which the central place is occupied with geometry processors (GPU). Possessing high functionality and extremely difficult architecture competing to the central processor unit, geometry processors are characterised considerable energopotrebleniem and are powerful sources teploobrazovanija. For the uninterrupted operation they demand adequate resources of cooling in which structure high-speed fans use, whose operation is accompanied by quite often considerable acoustic noise. For alternative to such resources the systems of passive cooling created on the basis of several heat sinks, jointed by thermal handsets can be. Absence of fans provides demanded noiselessness. As to heat from a surface of heat sinks it is carried away by internal air streams, obrazuemymi in the desktop computer the built in case fans and a central processor unit cooler.

As an example of one of such solutions it is possible to result videocard Gigabyte GV-RX16T256V-RH created on the basis of GPUATI RADEON X1600 XT.

Geometry processor ATIRADEON X1600 XT

In Table 1 key parametres GPU ATIRADEON X1600 XT resulted on a site of its manufacturer — companies ATI are resulted .

Table 1. Key parametres GPU ATI RADEON X1600 XT

The bus	PCI Express х16
Kernel	RV530
Processing technique	90 nanometers
Pikselnyh pipelines	12
Topmost pipelines	5
Textural units	4
Frequency of the chip/memory	590/1380 MHz
The memory interface	128 bits

Package and key parametres Gigabyte GV-RX16T256V-RH

Fig. 1. A package of videocard Gigabyte GV-RX16T256V-RH

Into package structure enter: a packing box; videocard GigabyteGV-RX16T256V-RH created on the basis of video chip ATIRADEON X1600 XT; a cable and adapter DVI-to-d-Sub; the documentation in English; CD-ROM with the software.

Key parametres of videocard GigabyteGV-RX16T256V-RH are resulted in Table 2.

Table 2. Key parametres of videocard Gigabyte GV-RX16T256V-RH

Units and subsystems	Parametres
The geometry processor	ATI RADEON X1600 XT
The hooking up interface	PCI Express x16
Size of a video memory, Mb	256
Video memory type	GDDRII 16Mx32
Width the bus of a video memory, bit	128
Video	DirectX 9.0 and OpenGL 2.0, V / S-Vidio and HDTV output
Plugs	DVI-I, TV-Out, VGA Monitor (15 pin)

 

Features of construction Gigabyte GV-RX16T256V-RH

Appearance of videocard ATIRADEON X1600 XT in which structure the silent system of cooling GPU uses, is presented in a Fig. 2.

Fig. 2. A package of videocard Gigabyte GV-RX16T256V-RH

The temperature mode necessary for correct operation GPU is reached by means of the several compact heat sinks jointed by special heat-conducting handsets. The principle of operation of thermal handsets is grounded on thermophysics of transformation of the liquids concluded in hollow handsets, transmission media of thermal energy playing a role. The given handsets provide effective alignment of temperature of the heat sinks used as a part of passive system of cooling GPU of a videocard.

Efficiency of the specified system essentially raises at the expense of usage of streams of air, obrazuemyh at the expense of existing case fans. In case of presence of such fans sucked in cold air cools videocard heat sinks, transiting at first through slices of the heat sink allocated for ports, and further — through heat sink slices on GPU. The small part of a stream cools also the heat sink of a videocard allocated on its underside. The additional stream of air forms thanks to rotation krylchatki the fan of the central processor unit allocated in immediate proximity from a videocard. This stream cools the heat sink of a videocard allocated on its underside even more. Alignment of temperatures as it was marked earlier, is carried out thanks to the thermal handsets jointing heat sinks of system of cooling.

As to productivity of specified videocard GV-RX16T256V-RH it has been estimated in the course of testing.

Productivity

The main components of the system used in testing of videocard Gigabyte GV-RX16T256V-RH:

·         the Motherboard of Intel D925XCV (a chip set i925X, memory DDR2, the slot of video PCI Express x16, ports PATA and SATA),

·         the Processor of Intel of Pentium 4 with clock rate of a kernel of 3,4 GHz (LGA 775, kernel Prescott, the bus of 800 MHz, processing technique Hyper-Threading),

·         Dynamic storage DDR2 of 533 MHz, two units on 512 Mb, two channels,

·         Hard disk drive Seagate in 7200.8 size of 400 Gbytes,

·         OC Operating system Windows 2003 Enterprise Server.

As standard videocards used Nvidia GeForce 5900 and ATI Radeon X600.

The numerical data resulted in Table 3 testify to productivity of videocards – Table 5 and in a Fig. 3 – a Fig. 5.

Table 3. Results of performance of test PCMark04 Graphics for different videocards

Videocard	Results
Gigabyte GV-RX16T256V-RH	5605
Nvidia GeForce 5900	4225
ATI Radeon X600	3545

Fig. 3. Results of performance of test PCMark04 Graphics

Table 4. Results of performance of the test 3DMark03 for different videocards

Videocard	Results
Gigabyte GV-RX16T256V-RH	9458
Nvidia GeForce 5900	5704
ATI Radeon X600	4812

Fig. 4. Results of performance of the test 3DMark03

Table 5. Results of performance of the test 3DMark05 for different videocards

Videocard	Results
Gigabyte GV-RX16T256V-RH	5372
ATI Radeon X600	2278
Nvidia GeForce 5900	989

Fig. 5. Results of performance of the test 3DMark05

The cited given testings testify to rather high efficiency of videocard GigabyteGV-RX16T256V-RH and do not require remarks.

Videocard GigabyteGv-Rx16T256V-Rhbyla is given by the Moscow office of company Gigabyte