AMD announces Ryzen 5 CPUs

[kompukare]

huh, no R3 at all? Either yields are terrible or AMD is scraping the bottom of the barrel and can't afford another set of masks for a single CCX, a chip with half the cores gated off is very unusual

Or a more optimistic possibility is that the 4 core mask was due later anyhow, and in the meantime they found some easy fixes which allow that those parts to clock higher, consume less power or similar. While not expecting that much from GF's 14nm FF in terms of clocks (the efficiency sweet spot seems to be 3GHz is which is good for 8C/16T and ideal for Naples' 32C/64T or mobile) maybe they found some easy fixes which don't need to wait for Zen+

[Rad77]

My expectation would be that the R3 is going to be a single CCX part (I was really hoping that the 4/8 R5s would be).

If so the question on my mind now is: Will a single CCX R3 overclock a bit better than a dual and therefore have a higher IPC than R5/R7...

Is the fastest gaming CPU (in the short term) going to be R3 rather than R5 or is it more likely that the latency issues with dual CCXs are mostly surmountable (in firmware/software) and that will let a 3+3 R5 achieve full potential.

Anyone got a crystal ball handy?

[KrisWragg]

This is all great, but when will we have motherboards? I pre-ordered an Asrock Taichi and 1700X ages ago, still not here

Seems the motherboards are really lacking in quantity at the moment from all the brands.

[Wozza63]

This is all great, but when will we have motherboards? I pre-ordered an Asrock Taichi and 1700X ages ago, still not here

Seems the motherboards are really lacking in quantity at the moment from all the brands.

Guess they weren't expecting Ryzen to be so successful. They could cause AMD a loss of sales if people get impatient.

[DanceswithUnix]

My expectation would be that the R3 is going to be a single CCX part (I was really hoping that the 4/8 R5s would be).

If you look at the die shot, it is a wide rectangular part. The CCX complex is rectangular, so why didn't they put them one on top of the other to make the overall die more square? To go for a side by side layout I assume they must need to expose more edge. Think about it, for a given area long and thin is all edge, square gives the least perimeter. That perimeter is where the I/O pads go for all the PCIe, memory etc interfaces. That is called pad limited, where the number of pins you have to wire up defines how much area the chip is going to have.

So if it is pad limited, then that area is going to exist whatever, you may as well find something to put in it. That should soon be graphics cores for the 2/4 core parts, otherwise it may as well be cpu cores, leaving it empty is silly.

[DanceswithUnix]

Guess they weren't expecting Ryzen to be so successful. They could cause AMD a loss of sales if people get impatient.

This is exactly why I was saying ages ago that the Carrizo chips should have been released to consumers months ago. We should be up to our necks in boards by now.

[EvilCycle]

Guess they weren't expecting Ryzen to be so successful. They could cause AMD a loss of sales if people get impatient.

I had a 1700x and asus x370 pro pre-ordered, but between the funky gaming benchmarks, the long wait for the motherboard and also corsair taking their sweet time giving an ETA on the mounting bracket for a h100i, I ended up switching to a 7700k and maximus IX hero instead, I don't regret it. I still hope AMD do well though, competition is always good.

[Wozza63]

Guess they weren't expecting Ryzen to be so successful. They could cause AMD a loss of sales if people get impatient.

I had a 1700x and asus x370 pro pre-ordered, but between the funky gaming benchmarks, the long wait for the motherboard and also corsair taking their sweet time giving an ETA on the mounting bracket for a h100i, I ended up switching to a 7700k and maximus IX hero instead, I don't regret it. I still hope AMD do well though, competition is always good.

Yeah, that's a shame. I'm fortunate enough that I can wait as I still have a perfectly usable system. But too many have already been waiting months for Ryzen prior to its release and now having to wait for motherboards.

[Wozza63]

Also the post mentioned that the cores are symmetrically disabled, does that mean that they can potentially be re-enabled, like some of the old tri cores?

[DanceswithUnix]

Also the post mentioned that the cores are symmetrically disabled, does that mean that they can potentially be re-enabled, like some of the old tri cores?

Not heard any way of unlocking yet, and I wouldn't count on it. When chips are mature and yields are good you get cores disabled for commercial reasons, but at this stage I expect it is more about disabling the faulty or hot running cores.