Performance
| DirectX version |
10.1 |
| OpenGL version |
3.1 |
| Shader model version |
4.1 |
| HDCP |
Y |
| TV tuner integrated |
N |
| PhysX |
N |
Memory
| Graphics adapter memory type |
GDDR3 |
| Memory bus |
128 bit |
| Discrete graphics adapter memory |
1 GB |
| Memory clock speed |
1600 MHz |
Processor
| Graphics adapter RAMDAC |
400 MHz |
| Graphics processor family |
AMD |
| Maximum analog resolution |
2048 x 1536 pixels |
| Processor frequency |
750 MHz |
| Maximum digital resolution |
2560 x 1600 pixels |
Ports & interfaces
| Interface type |
PCI Express 2.0 |
| HDMI ports quantity |
1 |
| VGA (D-Sub) ports quantity |
1 |
Other features
| Mac compatibility |
N |
| HDMI |
Y |
Power
| Minimum system power supply |
400 W |
HD 4670 iSilence4 Native HDMI 1GB, DDR3, 128 bit, PCI Express 2.0
<b>The Ultimate Silence Media Center PC!</b>
HIS unveils the HD 4670 iSilence 4 PCIe Card, deliver the ultimate silence solution for media center PC. Featuring the famous Korean cooling expertise’s product – ZALMAN VNF100, it maximizes cooling efficiency while provide a silence environment for gaming and multi-media entertainment.
<b>Cross over with Zalman latest innovative heatpipe solution</b>
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.
<b>Performance Test</b>
Test is setup to compare the temperature difference between the HD4670 iSilence 4 model and the HD4670 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.
<b>What Expert Says</b>
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
