Connecting PC to TV

[Andy]

I don't know where to post this, so if this is not the right place can a Mod please move it? TIA. I have some pretty old computer parts laying around so I wanted to see if I can put it together for a HTPC to connect to a Sony BRAVIA 43" 4K Ultra HD TV (XBR-43X830C).

GIGABYTE GA-P35-DS3L LGA 775 Intel P35 ATX All Solid Capacitor Intel Motherboard
ZALMAN CNPS9700 LED 110mm 2 Ball CPU Cooler
HyperX 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model KHX8500D2K2/2G
Intel Core 2 Duo E6600 Conroe Dual-Core 2.4GHz LGA 775 65W BX80557E6600 Processor

BFG Tech BFGEGTX275896OCE GeForce GTX 275 896MB 448-Bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
eVGA e-GeForce 8600 GTS graphics card - GF 8600 GTS - 256 MB Series

The BFG video card is the better one to use right? To connect it to the Sony TV above, I would just need a DVI to HDMI cable?

 

[System Error Message]

The bfg card is faster but you can use both cards at the same time with the BFG card as the primary GPU which lets you have even more attached displays or encoding/decoding GPU accelerated resource. The issue with old cards is that they may have trouble moving 4K pixels at 60fps but to confirm this there was a calculation i once posted a few years ago at some other website to determine the minimum GPU resource required to support very high resolution displays from memory bandwidths to ROPs and frequency but i cant seem to find it.

To calculate your GPU's fillrate (you can just check this via GPUz though) is to take the number of ROPs, multiply by clock speed(i.e. 48*600,000,000 for a GPU with 48 ROPs running a core (not shader) clock of 600Mhz = 28 Gigapixels a second).

To find the required fill rate you take your resolution (w*h)*refresh rate. For example for a screen of 1080P at 120hz would require 248.832 Million pixels per second.

To calculate the memory bandwidth required you take the fill rate required * 2 (read + write) * 48 (each pixel is 48 bits)/8 (to convert to bytes needed)

So for your TV the GPU needs to have 500Mpixels/s, 6GB/s of video memory and 50MB of vram at least just to display the pixels. This spec doesnt include other calculations such as 3D or 2D stuff for the desktop or memory required for a 4K video decoding in the GPU and other items like icons and images for the desktop and the desktop system itself (such as windows aero).

DVI is better because it has more bandwidth than HDMI.

 

[sfx2000]

DVI is better because it has more bandwidth than HDMI.

Might have to go with HDMI though because of HDCP constraints on some media...