GTX 750 ti

Thanks for the results. The times are impressive for such a small beast !
My GF 660 Ti does a BRP4G in ~2800 s.

Alex. As I have posted in another thread I just brought up a new host with a base-model GTX750 card.

I think some people here are interested in the base GTX 750 vs ti-model comparison.

Aside from the added hardware, yours is running at somewhat faster clocks than mine (GPU 1228 vs. 1176, GPU Mem clock 1375 vs. 1253).

While we are running different flavors of Windows 7, possibly that is unimportant. However your CPU is an i7 Ivy Bridge Quad stated to be 3.4 GHz, while mine is an i3 Haswell dual stated to be 3.4 GHz, with chipset differences as well.

If you are interested, I'd be willing to devote some run time to agreed trial conditions intended to focus on the card differences while attempting to make host differences less important.

As a guess, perhaps this might best be done by stopping pure CPU BOINC work, and stopping on-chip Intel GPU work as well. In the interest of reproducibility in a short test I also think we should avoid mixed work, and the dreaded GRP3 jobs.

Restricting things to a single GPU job running at a time would keep things at their simplest--but would be unrepresentative of how real users would likely run things, and given some of the contention and memory access issues, might mis-represent the likely relative merits in real service.

The BRP4G work has the advantage of shorter run times, so less time lost in a non-optimal configuration. However I am currently standardized on Perseus work (very recently).

So, if you are interested and agree, my suggested comparison configuration is:

1. zero CPU jobs
2. zero iGPU jobs
3. two-up BRP4G nvidia GPU jobs
4. no intervention to the standard settings of GPU, CPU, or RAM (i.e. no overclocking)
5. no adjustment to windows default behavior regarding CPU affinity or priority.
6. normal operation configuration (i.e. connected to the internet), but avoiding user interactive use during the test.
7. report same-version GPU-Z average GPU loading and memory loading averaged over a substantial portion of the test run--also the other major GPU-Z parameters.

This is meant as an opening bid--not an ultimatum, subject to your being interested, and possibly suggesting different test configuration details.

I'm assuming your ti is appreciably better--the question is "how much--for this particular application?"

Just a small bit of information, before anyone gets too excited.

The GM107 chip used in the GTX 750 range has - as BOINC has detected - 'compute capability 5.0'

This architecture has 128 shaders per multiprocessor, where the previous Kepler chips had 192 shaders per SM. This means that the rather complicated derivation BOINC uses to calculate GFLOPS peak will overstate the estimated speed by 50%. This will be fixed in v7.3/v7.4 clients, but it looks like Maxwell was released too late for the change to be back-ported to v7.2.42 that Alex is using.

Doesn't affect the validity of this test, of course, and we're all waiting to see how well this rather promising newcomer performs in the real world - but I thought I'd jump in before somebody reads that number and spends money on a card that might not be quite as good as they think it is.