Soldato
Hi everyone
I've been reading about the 7700 and 7900 Non X chips from AMD.
I watched a review from Linus Tech Tips (I don't know if he is good) and the 7900X offered frame rates in games around 5% lower than the non X version. The benefit however is that the max power consumption is 90 watts and it prime 95'd at 40c or so!
As someone who gets a bit fed up of the mega power draw and temperatures of modern CPUs this seems great and I even wondered if this means that you wouldn't need a 8pin ATX CPU power connector (I don't know if the 24 pin ATX connector delivery power to the CPU at all?) but anyway
I was getting all excited but then LTT did show a graph showing the power consumption of the CPU compared to the X variant when using a frame cap, and they were the same. So I thought that as long as the lower clocks of the nonX can deliver the capped frame rate, the X variant and non x will deliver the same frame rate at the same power. However the X version just offers headroom for harder tasks (or longlivity).
But then (I appreciate this is a bit of a rollercoaster) You can actually manually adjust the power profile in your bios to overclock the non-X to X levels of power consumption to deliver similar Cinebench scores! (within 1%) but I don't know if the overclocked clocks actually match the X version. They also didn't show any gaming OC frame rates so perhaps the gap between X and overclocked nonX is bigger than cinebench and handbrake.
With the non X chips being £40 cheaper, and the standard cooler is good enough for it, I would be quite tempted to get the nonX version for like an mATX build.
I've been eyeing up an upgrade from a 3700 and I'm tempted by this although the most sensible option would be to get a 5800X on my same X470 board.
Also here is the video link https://www.youtube.com/watch?v=CTiRNnSg0jA
I've been reading about the 7700 and 7900 Non X chips from AMD.
I watched a review from Linus Tech Tips (I don't know if he is good) and the 7900X offered frame rates in games around 5% lower than the non X version. The benefit however is that the max power consumption is 90 watts and it prime 95'd at 40c or so!
As someone who gets a bit fed up of the mega power draw and temperatures of modern CPUs this seems great and I even wondered if this means that you wouldn't need a 8pin ATX CPU power connector (I don't know if the 24 pin ATX connector delivery power to the CPU at all?) but anyway
I was getting all excited but then LTT did show a graph showing the power consumption of the CPU compared to the X variant when using a frame cap, and they were the same. So I thought that as long as the lower clocks of the nonX can deliver the capped frame rate, the X variant and non x will deliver the same frame rate at the same power. However the X version just offers headroom for harder tasks (or longlivity).
But then (I appreciate this is a bit of a rollercoaster) You can actually manually adjust the power profile in your bios to overclock the non-X to X levels of power consumption to deliver similar Cinebench scores! (within 1%) but I don't know if the overclocked clocks actually match the X version. They also didn't show any gaming OC frame rates so perhaps the gap between X and overclocked nonX is bigger than cinebench and handbrake.
With the non X chips being £40 cheaper, and the standard cooler is good enough for it, I would be quite tempted to get the nonX version for like an mATX build.
I've been eyeing up an upgrade from a 3700 and I'm tempted by this although the most sensible option would be to get a 5800X on my same X470 board.
Also here is the video link https://www.youtube.com/watch?v=CTiRNnSg0jA
Last edited: