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AMD Ryzen 9 3900XT review
Posted by: on: 07/07/2020 02:00 PM [
63 comment(s) ]
We review the new XT model Ryzen 9 3900XT. Released by AMD as a respin of the 3900X model, the XT processors are optimized to bring a bit more bite in single-threaded and medium threaded workloads.
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Mineria
Senior Member
Posts: 4199
Senior Member
Posts: 4199
Posted on: 07/08/2020 01:47 PM
@nizzen
Whaaaat?!?!?
How did you cool that?
Probably lower voltage and water, some of these chips run stable below 1.3V
But unless a longer test is run I wouldn't put a bet on it being stable.
@nizzen
Whaaaat?!?!?
How did you cool that?
Probably lower voltage and water, some of these chips run stable below 1.3V
But unless a longer test is run I wouldn't put a bet on it being stable.
DG21
Senior Member
Posts: 108
Senior Member
Posts: 108
Posted on: 07/08/2020 02:29 PM
I did some testing tonight... my 3900x runs almost stable with 0,95V ... the difference:
Idle: 20W less, single thread 30-35W less with 18% performance loss, multithread up to 116W less with 14% less performance.
The difference to my previous postet results is, that they were aquired on a kind of 'naked' system and meanwhile there are tons of backgroundservices chewing off a bit...
oh yeah i forgot, that under Prime95 the max temp. dropped to 46°C xD - so, im eager to try 0.7V tonight.
1338
I did some testing tonight... my 3900x runs almost stable with 0,95V ... the difference:
Idle: 20W less, single thread 30-35W less with 18% performance loss, multithread up to 116W less with 14% less performance.
The difference to my previous postet results is, that they were aquired on a kind of 'naked' system and meanwhile there are tons of backgroundservices chewing off a bit...
oh yeah i forgot, that under Prime95 the max temp. dropped to 46°C xD - so, im eager to try 0.7V tonight.
1338
0blivious
Senior Member
Posts: 3074
Senior Member
Posts: 3074
Posted on: 07/08/2020 02:53 PM
These XT models basically suck for value. I'm glad I didn't wait for their release date and I went ahead and built 3 weeks ago instead. $328 for a 3800x with a free Wraith prism cooler? Still feels like a good deal after this refresh release.
Probably lower voltage and water, some of these chips run stable below 1.3V
But unless a longer test is run I wouldn't put a bet on it being stable.
My stock 3800x settles in and runs all 8 cores @ 4.1Ghz under load, seemingly all day long. Which I suspect is the baseline average one could expect.
Here's a 12 minute stress test as I tried to nail down a silent fan curve. If I saw a graph like this running at 4.7ghz, that would be impressive.
1339
These XT models basically suck for value. I'm glad I didn't wait for their release date and I went ahead and built 3 weeks ago instead. $328 for a 3800x with a free Wraith prism cooler? Still feels like a good deal after this refresh release.
Probably lower voltage and water, some of these chips run stable below 1.3V
But unless a longer test is run I wouldn't put a bet on it being stable.
My stock 3800x settles in and runs all 8 cores @ 4.1Ghz under load, seemingly all day long. Which I suspect is the baseline average one could expect.
Here's a 12 minute stress test as I tried to nail down a silent fan curve. If I saw a graph like this running at 4.7ghz, that would be impressive.
1339
Undying
Senior Member
Posts: 14862
Senior Member
Posts: 14862
Posted on: 07/08/2020 03:45 PM
Which games will get great benefits from 8/16 over 6/12 this year, next year?
Both the 10600K as the 3600 will be fine for gaming only for the next 2-3 years, games won't magically utilize 8/16 over night.
You can of course go with 3700X instead of the 10600K to have 8/16, but for pure gaming the i5 does perform better, if we include streaming, sure, more cores do help.
2-3 years ago 7700k was the best cpu and look where are we now. By then we'll be long into next generation of cpus and gpus. There is already few games utilizing 8cores im sure there will many more.
Which games will get great benefits from 8/16 over 6/12 this year, next year?
Both the 10600K as the 3600 will be fine for gaming only for the next 2-3 years, games won't magically utilize 8/16 over night.
You can of course go with 3700X instead of the 10600K to have 8/16, but for pure gaming the i5 does perform better, if we include streaming, sure, more cores do help.
2-3 years ago 7700k was the best cpu and look where are we now. By then we'll be long into next generation of cpus and gpus. There is already few games utilizing 8cores im sure there will many more.
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Senior Member
Posts: 4199
Which games will get great benefits from 8/16 over 6/12 this year, next year?
Both the 10600K as the 3600 will be fine for gaming only for the next 2-3 years, games won't magically utilize 8/16 over night.
You can of course go with 3700X instead of the 10600K to have 8/16, but for pure gaming the i5 does perform better, if we include streaming, sure, more cores do help.