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Are the TDP figures to be trusted? How does the heat produced compare with Intel offerings? The last time I bought an AMD my PC felt like a hair dryer, will I r

by rb808 9y ago

Are the TDP figures to be trusted? How does the heat produced compare with Intel offerings? The last time I bought an AMD my PC felt like a hair dryer, will I regret going AMD again?

onli 9y ago
That's frankly a valid question, since the prior generation of AMD chips was really bad in this area. But the article has a whole page about power consumption. AMDs TDP rating normally can't be trusted, because they compute it in very strange ways, but in this case the full load power usage of the 1500X is only 2W above 65W, so it checks out. The R3 1300X always stays below, and the slower clocked 1200 even uses a lot less. In general Ryzen's power consumption is not bad.
kllrnohj 9y ago
Just look at the power consumption metrics in the review. If it used less power, it produced less heat. Nearly all the power that's used is directly converted to heat. TDP doesn't mean anything about what the CPU will produce under actual loads, it's the budget that the OEM should provide to satisfy the performance target of the CPU. Simple example of this is the 51W TDP Intel chips consistently used more power (and thus produced more heat) than the 65W TDP Intel chip. The reason is Intel is OK with the 51W TDP chips thermal-throttling more than they are the 65W TDP part, because that's the performance they are selling. Under full load the Ryzen 3 1200 was power-competitive with the Intel offerings, whereas the Ryzen 3 1300X and Ryzen 5 1500X used 20w more power. 20W is not going to be that noticeable, though.
- thinkmassive 9y ago
  It depends where that 20W is going... on the floor or into your lap and hands? I'm building a small cluster of i3 NUCs, but I like AMD so this is intriguing. Power efficiency is important to me, and 20W is less negligible when it's multiplied.
e12e 9y ago
I don't see why you wouldn't (particularly) trust the measured power draw (as opposed to everything else in the review), which is what really matters anyway: http://www.anandtech.com/show/11658/the-amd-ryzen-3-1300x-ryzen-3-1200-cpu-review/16 http://www.anandtech.com/show/11658/the-amd-ryzen-3-1300x-ry... Looks like they do pretty well vis-a-vis Intel.

by rb808 9y ago

Are the TDP figures to be trusted? How does the heat produced compare with Intel offerings? The last time I bought an AMD my PC felt like a hair dryer, will I regret going AMD again?

onli 9y ago

That's frankly a valid question, since the prior generation of AMD chips was really bad in this area. But the article has a whole page about power consumption. AMDs TDP rating normally can't be trusted, because they compute it in very strange ways, but in this case the full load power usage of the 1500X is only 2W above 65W, so it checks out. The R3 1300X always stays below, and the slower clocked 1200 even uses a lot less. In general Ryzen's power consumption is not bad.

kllrnohj 9y ago

Just look at the power consumption metrics in the review. If it used less power, it produced less heat. Nearly all the power that's used is directly converted to heat. TDP doesn't mean anything about what the CPU will produce under actual loads, it's the budget that the OEM should provide to satisfy the performance target of the CPU. Simple example of this is the 51W TDP Intel chips consistently used more power (and thus produced more heat) than the 65W TDP Intel chip. The reason is Intel is OK with the 51W TDP chips thermal-throttling more than they are the 65W TDP part, because that's the performance they are selling. Under full load the Ryzen 3 1200 was power-competitive with the Intel offerings, whereas the Ryzen 3 1300X and Ryzen 5 1500X used 20w more power. 20W is not going to be that noticeable, though.

thinkmassive 9y ago
It depends where that 20W is going... on the floor or into your lap and hands? I'm building a small cluster of i3 NUCs, but I like AMD so this is intriguing. Power efficiency is important to me, and 20W is less negligible when it's multiplied.

e12e 9y ago

I don't see why you wouldn't (particularly) trust the measured power draw (as opposed to everything else in the review), which is what really matters anyway: http://www.anandtech.com/show/11658/the-amd-ryzen-3-1300x-ryzen-3-1200-cpu-review/16 http://www.anandtech.com/show/11658/the-amd-ryzen-3-1300x-ry... Looks like they do pretty well vis-a-vis Intel.