I look forward to the rest of the series. Does it make sense to push more GPU muscle on an APU, or is the GPU portion constrained by the memory bandwidth? However, it would help to characterize the APUs performance balance a little better. Intuition says that it will never approach a discrete card and given the low end compute performance, it may not make a difference at all. While the APU memory bandwidth will never approach a discrete card, I am curious to see whether overclocking memory to an APU will make a noticeable difference in performance. It’s almost an order of magnitude difference between the memory bandwidth on these two devices.ĪPUs may be bottlenecked simply because they have to share CPU level memory bandwidth.
It’s a very memory- or bandwidth-intensive problem to even a larger degree than it is a compute-bound problem. you are also solving a bandwidth bottleneck problem.
TH: Specifically, what aspects of your software wouldn’t be possible without GPU-based acceleration? I suspect, the larger issue in regards to performance was stated in the interview earlier: While the discrete GPU is superior, the architecture isn't all that different. Try it and youll soon discover that its the only video app you need. Whether you need to tame your video library or make your favorite video moments shine, youll enjoy vReveals simplicity and power. For serious compute workloads, the sheer complexity of a discrete GPU is undeniably superior. vReveal makes it easy to manage, fix, and share your videos. That's less than half of what the Radeon HD 5870 was able to do matched up to AMD's APU. It sharpens, it brightens, it twists and twirls and tweaks and steadies your video to crystalline perfection.
But at 1080p, the two subsystems are collaboratively stuck at 29% of real-time. MotionDSP vReveal Premium v3.2-Lz0 40 Mb vReveal 3 for Windows is the best solution to manage and fix the videos from your cell phone, HD camcorder, digital camera, or any other video device. Pushing CPU usage down is great at 480p, where host processing and graphics working together manage real-time rendering of six effects. However, the performance chart tells the second half of the story. In regards to testing the APU w/o discrete GPU you wrote: