Cross over with Zalman latest innovative heatpipe solution

It is cooled by the well-known Korean cooling expertise’s product – ZALMAN VNF100. With Zalman’s patented VFP (Variable Fin Profile) Fin Design, it maximizes cooling efficiency and dissipation surface area for excellent performance. As VNF100 is fanless, it does not emit any noise and can be used semi-permanently. Coming with 3 high performance heatpipes, it maximizes heat transfer. The thin aluminium fins (0.4mm) provide minimized heatsink weight, and prevents excessive force on the VGA card. More importantly, the heatsink is positioned above the VGA card that optimizes cooling efficiency and allows compatibility with CrossFire setups.

Performance Test

Test is setup to compare the temperature difference between the HD4650 iSilence 4 model and the HD4650 standard cooler. From the following graph, the HIS iSilecnce 4 cools down the GPU temperature by up to 10%. Passively cooled by the passive cooler Zalman VNF100, the newly designed heatpipes convey heat to a large and dense array of aluminium fins, effectively cool down the temperature and ensure the station runs in stable condition.

What Expert Says

“With the location of these fins being above the PCB in most installations, better cooling is achieved with air heated by the card moving upwards.” – TechPowerUp.com

• Powered by Radeon® HD 4650 GPU
• 320 stream processing units
• DirectX® 10.1
• 24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
• Dual mode ATI CrossFireX^TM multi-GPU support for highly scalable performance (Software Crossfire)
• PCI Express® 2.0 support

CHIPSET FEATURES

• 320 stream processing units
• 128-bit memory interface
• 24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
• PCI Express® 2.0 support
• Dual mode ATI CrossFireX^TM multi-GPU support for highly scalable performance (Software Crossfire)
• PCI Express® 2.0 support
• High-speed 128-bit HDR (High Dynamic Range) rendering
• ATI Avivo^TM HD video and display technology
• Built-in Native HDMI with 7.1 surround sound support
• Support for the ATI Radeon^TM DVI to HDMI adapter
• Dynamic geometry acceleration
• Game physics processing capability

HIS PRODUCTS ADVANTAGE

• HIS delivers Faster, Cooler, Quieter plus the best quality product!
• Professional customer service and technical support

Model Name	HIS HD 4650 iSilence 4 Native HDMI (Full HD 1080p) HDMI 1GB (128bit) 800MHz DDR2 Dual DL-DVI & TV (HDCP) PCIe (RoHS)
Chipset	Radeon HD 4600 PCIe Series
ASIC	Radeon™ HD 4600 GPU
Pixel Pipelines	320 stream processing units* (Unified)
Vertex Engines	320 stream processing units* (Unified)
Manu. Process (Micron)	55nm
Transistor	514 million
Memory Size (MB)	1GB
Memory Type	DDR2
RAMDAC (MHz)	400
Engine CLK (MHz)	600
Memory CLK (MHz)	800
Memory Interface (bit)	128
Power Supply Requirement	400 Watt or greater power supply (550 Watt for ATI CrossFireX™ technology in dual mode) is recommended
Max. Resolution	1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)
Bus Interface	PCI Express x16 (PCI Express 2.0)
VGA	Yes
2nd VGA	No
DVI	Yes
2nd DVI	No
TV-out	No
HDMI	Yes
Video-in	No
TV Tuner	No
FM Tuner	No

ATI Radeon™ HD 4600 System Requirements

• PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
• 400 Watt or greater power supply (550 Watt for ATI CrossFireX™ technology in dual mode) is recommended
• Certified power supplies are recommended. Refer to for a list of Certified products
• 1GB of system memory recommended
• Installation software requires CD-ROM drive
• DVD playback requires DVD drive
• Blu-ray™ playback requires Blu-ray drive and full 1080p display requires a 1080p-capable monitor
• To enable dual mode ATI CrossFireX™ technology, a second ATI Radeon™ HD 4600 Series graphics card, an ATI CrossFireX Ready motherboard is required. Enable Software Crossfire in ATI Catalyst™.
  
  • Software CrossFire is only available when two graphics accelerators from the same family are plugged into a CrossFire compatible motherboard with no hardware interconnect between the two graphics accelerators.

For more information, please visit the following link:

http://ati.amd.com/products/radeonhd4600/specs.html

Cross over with Zalman latest innovative heatpipe solution

It is cooled by the well-known Korean cooling expertise’s product – ZALMAN VNF100. With Zalman’s patented VFP (Variable Fin Profile) Fin Design, it maximizes cooling efficiency and dissipation surface area for excellent performance. As VNF100 is fanless, it does not emit any noise and can be used semi-permanently. Coming with 2 high performance heatpipes, it maximizes heat transfer. The thin aluminium fins (0.4mm) provide minimized heatsink weight, and prevents excessive force on the VGA card. More importantly, the heatsink is positioned above the VGA card that optimizes cooling efficiency and allows compatibility with SLI and CrossFire setups.

Redefine HD Gaming

The ATI Radeon HD 4600 Series graphics cards boast up to 3 times the performance of the previous generation1 of GPUs and deliver a cinematic gaming experience. These graphics cards possess the same engine architecture as the award-winning ATI Radeon™ HD 4800 Series and can propel you deep into your game play with fast frame rates and high resolutions. Enhanced anti-aliasing (4X AA) and anisotropic filtering creates striking graphics with unparalleled realism so you can jack up the settings on the most demanding next-generation games. Play today while preparing for tomorrow with Microsoft DirectX® 10.1 and scalable ATI CrossFireX™ technology in dual mode.

Break-through Efficiency

Save time and energy with the ATI Radeon™ HD 4600 Series graphics cards which provide optimal performance, break-through efficiency and stability. These graphics cards are a great option for business users who engage in video conferencing or use creative applications that require fast frame rates and exceptional visual quality. With platform-independent intelligent power management, the ATI Radeon™ HD 4600 Series graphics cards deliver the power needed to blaze through even the most intense applications while intuitively conserving energy at idle or when demand is low. Expand your visual workspace with multi- monitor support for advanced multi- tasking to help you get more done in less time.

HDMI Video and Audio

A system with an ATI Radeon™ HD 4600 Series graphics card can help enhance the HD entertainment experience by providing a seamless connection to an HDTV or home theater system. With built-in 7.1 surround sound audio (AC3 / DTS ), the new GPUs and graphics cards support single cable connection directly to a compatible HDTV, projector or receiver. This single cable carries both the HD video and 8 channel audio for a clean, high definition connection. It is equipped with an HDMI connecto. These options give consumers more options and flexibility when connecting their PCs to monitors or home theaters for maximum enjoyment of HD content. The new GPU also supports xvYCC color which can display a wider range of color when connected to capable HDTVs.

Microsoft® DirectX® 10.1 support

ATI Radeon™ HD 4600 series GPUs offer full support for the new DirectX® 10 and DirectX® 10.1 API (Application Program Interface) from Microsoft; ready to meet the demanding needs of new, next generation games. DirectX 10 is the first totally new DirectX in the last 4 years and brings important graphics innovations that can be used by game developers for the next generation of games. DirectX 10 introduces crisp, never-beforeseen detail-rich images, visual effects and game dynamics capable of accurately simulating the real world. No matter which ATI Radeon™ HD 4600 Series GPU you choose, you can be assured that games will look as good as the developer intended!

ATI CrossFireX™ Technology

New ATI CrossFireX™ multi-GPU technology takes your gaming experience to the next level with more scalability, performance and compatibility. The technology combines the awe-inspiring capabilities of multiple ATI Radeon™ graphics cards and an ATI CrossFireX ready motherboard to meet the hard-core demands of your alternate reality. New ATI Radeon™ HD graphics cards are designed with an internal ATI CrossFireX™ Bridge Interconnect system to simplify installation. Experience stunning visual realism in today’s demanding 3D games with uncompromising image quality, especially on HD displays.

Microsoft® Windows Vista®

ATI Radeon™ HD 4600 series graphics cards provide support for the Microsoft® Windows Vista® operating system and take advantage of the Windows Aero™ graphical interface. You will be amazed by the dazzling 3D visual effects and have peace of mind that the ATI Catalyst™ software and drivers are designed and thoroughly tested to ensure full compatibility and stability to help keep you up and running. All these new technologies and features make the ATI Radeon HD 4600 series of GPUs the ideal solution for ultimate HD gaming and HD video entertainment with the Windows Vista OS

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