@gda13, thank you for the CS6 GPU specifications. I was under the impression that it was still using CUDA for rendering. Adobe is not consistent in terms of how they are employing hardware acceleration. With LR4 being CPU bound, and their higher end products being split between CUDA (Nvidia) and OpenCL (AMD/ATI), there is not a consistent GPGPU configuration that works well to support Adobe's acceleration design choices, that supports their entire range of product offerings.
With the configuration now targeting OpenCL/OpenGL bound, that allows a switch over to a Radeon 7870XL/7950. The XL variant uses the same chip as the 7950/7970 cards, but at a lower price. AMD has much greater OpenCL/OpenGL performance than any of the Nvidia offerings – and this can be seen in the Bitcoin performance measures.
If you would like something in the $500 - $700, I would highly suggest looking at the Logical Increments Guide from
Buid-a-PC as it contains a wide variety of very decent builds at a number of price points. A larger budget does increase your options if you want to have better performance in other areas.
Here are a few variants using different components, feel free to critique as you see fit. Power calculations were done with Pahedrus's PSUCalc utility. It can be downloaded at
PSUCalc - Home. Pahedrus has been doing power supply testing for Antec and Overclock.net reviews for a long time, and his calculator makes it easy.
- Intel-based, optimized for power:
Phaedrus's PSUCalc puts this build at less than 400watts, and if you decide to crossfire the 7870XL down the line, the PSU will support it. Double 7950's (the card's bigger brother) clock in at 550watts flat in crossfire with the components in this build.
Changes: You could switch out the modular PSU for some extra money, and upgrading the case to an NZXT Source 210 would be a good decision. Finding room to upgrade to a 7950 would also be a very nice luxury, but it's pushing the limit thanks to the price of Windows.
- AMD-based, optimized for power:
Phaedrus's PSUCalc puts this build at less than 400watts, and if you decide to crossfire the 7950 down the line, the PSU will support it. Double 7950's 600watts flat in crossfire with the components in this build.
Changes: The case isn't the best, and the colors clash. If you can find a better case with free shipping, it would be an improvement. The NZXT Source 210 is good, but there is better out there.
As much as I like the AMD Bulldozer, the hyper-transport bus and everything that AMD has done, they made a bad optimization decision a while back for their CPUs. Intel optimized correctly for the software loading mix usually encountered, thus Intel is a better selection in many cases.
The 2, 4, 6 and 8 (physical) core offerings to be effective, you really need to consider your software loading. Most (99.99%) commercial software available is single threaded. Mult-threading (as in a very larger number of threads > ~4 to 8) a large commercial software package is a bridge too far at the moment and out to the foreseeable future (as in 5 years). You need large scale multi-threading to really make effective use of anything over 4 physical cores. The 6 and 8 core offerings are used primarily in the application of virtual machines residing on servers - using hypervisors or separation kernels. So the 2 and 4 core offerings are very effective for the desktop applications. Especially, with the use of hyper-threading on cores - effectively doubles them. So even an i3 with hyper-threading provides 4 virtual cores for use.
As for Korean monitors, they are Catleap, Shimian, PCBANK and Crossover. They are mostly on Ebay, but a few can be found at Microcenter and Monoprice. green-sum and red-cap seem to be the most reputable sellers. Here are some various threads from overclock that contain relevant information, reviews and people who actually ordered them:
_______________________
Note - the cases used above support a USB 2.0 header while the motherboards support a version 3.0. A mis-match, but trying to optimize for price.
hope that helps...