I bought Club-3D GTS 250 Green almost a year ago to play Crysis, Crysis Warhead, Far Cry 2 and a few other first person titles. Seeing as I already have a GTS 250 (Sparkle brand), I bought this solely for the purpose of running SLI (Scalable Link Interface). Knowing that this was the 'green' version of the card I can expect lower clocks, but it shouldn't matter too much as I can just downclock my other card as I see fit.
The box contained a tightly bubbled-wrapped card, a drivers and utilities CD, and some cables. The dimensions of card measured width 11.3, length 23cm, and height 4.1cm and the heatsink & fan looked amazingly similar to that of my current Sparkle branded GTS 250.
The installation didn't pose too much trouble as it fit nicely underneath my current card. However, I had some trouble obtaining a SLI bridge so I had to visit the local computer store. After that, it was just a matter of plugging it in, connecting the 6-pin PCI-express power cable, and linking the cards together with the SLI bridge.
I fired it up and read the core clock to be 700Mhz, 38Mhz slower than the original GTS 250 version which has the core clock at 738Mhz. The memory clock is also slower, but we can expect that as it was a 'green' version. Being in SLI mode you can expect temperatures to be a bit high, but this card kept its cool. It idled at 37C and when under full load it reached 65C... not bad at all! I was able to overclock it a bit to squeeze more performance out of it.
The Club-3D GTS 250 Green Edition is a good card, but there are better alternatives out on the market today. I would recommend it only if you already have a GTS 250 and wish to buy another one to run in SLI mode.