I decided to estimate how gaming capable Stoney Ridge is.
I have a Radeon 5550 with 800MHz DDR2 (according to HIS) in my HTPC. It's used for family gaming, and copes with LEGO games at 720p, and the likes of Never Alone, Ducktales, Brothers - A Tale of Two Sons, King's Quest, etc. In short, a pretty decent family gaming card, even though it's somewhat borderline and it would be nice to get some more performance (like LEGO at 1080p) and I plan to upgrade it to Bristol Ridge AM4.
So how would the A9-9410 compare to my Radeon 5550?
I took the Radeon 7750 vs. 5770 as an estimate of the architectural difference. They performed about the same when the 7750 was released, at close core and memory speeds. So I estimate from this that the 5770's 800 cores is equivalent to the 7750's 512 cores.
The A9-9410 has 192 cores, so by this ratio it's equivalent to 300 cores of the 5000 family. This is very close to the Radeon 5550's 320 cores. But the 5550 has a core clock of 550Mhz, while the A9-9410 has a 800Mhz clock, which in total gives it 36% better performance than the 5550. Even the A6-9210 has a 600MHz clock, which makes it about equivalent to the 5550.
When Stoney Bridge has a problem is memory bandwidth. The 5550 has DDR3-1600 with a 128 bit bus, compared to Stoney Bridge's DDR4-2133 with a 64 bit bus. End result is 67% of the 5550's bandwidth. Other the other hand, GCN 1.2 has lossless compression which should help alleviate the bandwidth problem. On the gripping hand, this bandwidth it shared with the CPU.
So bandwidth would be an issue, and it's hard to estimate its impact. However, I'd still estimate Stoney Bridge can be about as fast as my 5550, which isn't that bad. The 5550 is certainly not a gamer's card, but it functions well for family gaming.
So this puts these chips in some more perspective for me. All in all, nice to see how far along AMD's low end chips have come since the E-350 in my Thinkpad X120e. If Lenovo released a new low cost Stoney Bridge based Thinkpad X, I would have considered getting it as an upgrade. (Although I'd be surprised if that happens, and I already ordered a Dell XPS 13, so that's just in theory.)
Edit: Nothing new about Bristol Ridge AM4 and I'm a little bored.
Re-read this and noticed "800MHz DDR2" up top and "DDR3-1600" in the calculation. I think that HIS is wrong. AMD's site specifies RAM as DDR3 at 800MHz, which is DDR3-1600 (that's consistent with the bandwidth mentioned). I therefore assume that the card's memory runs at an effective 1600MHz.
Also, I calculated that the A9-9410's GPU is 6x as fast as the Radeon 6310 in the E-350 (based on the architecture core equivalence assumption above and clock speed) and it has twice the memory bandwidth, before taking compression into account.