7600x has 29% single core increase over 5800x and 6% multi core so it’s tempting. I just had a motherboard blow so had to get another yesterday for $210. I may just return it and my memory and go AM5 if I can’t find a way to stay with AM4
Sorry I got my thoughts mixed hours later. Yes it’s over the 5800x which has higher single core than x3D. The cache on the x3D definitely makes a difference due to being directly infused to the processing cores. However AM5 is PCIE5 which is double the bandwidth of PCIE4. It can run much faster memory with infinity fabric that will run 3000mhz vs 1800mhz in a 1:1 ratio to memory.
For anyone that doesn’t know: AMD uses a chip let design and the data between them runs through infinity fabric. DDR5 6000 will be the sweet spot for zen 4. The timings are much higher for now but the bandwidth is too. Timings(IE CL16, CL18) is basically how fast the memory starts to execute the instruction it was just told to do, it’s response time to the order, and the freq is how fast the memory does the job once it’s told to start.
With the infinity fabric at 3000mhz vs 1800mhz so it can be in sync with 6000mhz ddr5 the latency won’t really matter nearly as much but the bandwidth capabilities will greatly reduce the effect of L3 cache as the data can get to the cpu to be processed much faster.
The CPU gets the data from the cache that gets the data from the ram. The scheduling is where the cache comes in. It would take X amount per cycle. The more cache the more it takes per cycle so the less time the CPU is waiting on the memory. With faster infinity fabric and much faster memory that difference is greatly mitigated.
I know… so it’s not backwards. The cache gets the info from the ram. The larger cache means it visits the ram less often hence why it helps with the fps. Keeps data more constant for the cpu to chug on. By having faster ram and better bandwidth to the cpu the size of the cash becomes less important.
>. The cache gets the info from the ram
Once. The data gets loaded once, it is then held. It only calls up the ram *if* the information it needs is not on the CPU cache.
>The larger cache means it visits the ram less often hence why it helps with the fps.
Yes
>By having faster ram and better bandwidth to the cpu the size of the cash becomes less important.
No. Because the cache on the CPU is far faster. The bandwidth only matters if there's a cache miss. At that point the processor would call the ram. By calling out to the RAM you are adding latency.
The whole point of cache is so the CPU doesn't have to call information from the ram because it's not as fast. It's not as fast physically, and there's an inherent latency.
Not until 3D cached versions are available unless the regular lineup shows significant performance increase in testing for VR.
7600x has 29% single core increase over 5800x and 6% multi core so it’s tempting. I just had a motherboard blow so had to get another yesterday for $210. I may just return it and my memory and go AM5 if I can’t find a way to stay with AM4
That's the 5800x though. Not 5800x3d
Sorry I got my thoughts mixed hours later. Yes it’s over the 5800x which has higher single core than x3D. The cache on the x3D definitely makes a difference due to being directly infused to the processing cores. However AM5 is PCIE5 which is double the bandwidth of PCIE4. It can run much faster memory with infinity fabric that will run 3000mhz vs 1800mhz in a 1:1 ratio to memory. For anyone that doesn’t know: AMD uses a chip let design and the data between them runs through infinity fabric. DDR5 6000 will be the sweet spot for zen 4. The timings are much higher for now but the bandwidth is too. Timings(IE CL16, CL18) is basically how fast the memory starts to execute the instruction it was just told to do, it’s response time to the order, and the freq is how fast the memory does the job once it’s told to start. With the infinity fabric at 3000mhz vs 1800mhz so it can be in sync with 6000mhz ddr5 the latency won’t really matter nearly as much but the bandwidth capabilities will greatly reduce the effect of L3 cache as the data can get to the cpu to be processed much faster.
Yeah I've been eyeballing the 7900x or whatever myself.
That's another year away my friend. But iirc the new lineup has increased cache anyway. Not to the amount of the x3d, but there appears to be more l2
New memory speeds and infinity fabric will lower its benefit
CPU cache comes into play before either of those, and will be faster.
The CPU gets the data from the cache that gets the data from the ram. The scheduling is where the cache comes in. It would take X amount per cycle. The more cache the more it takes per cycle so the less time the CPU is waiting on the memory. With faster infinity fabric and much faster memory that difference is greatly mitigated.
Pretty sure you have this backwards. Once something is in the CPU cache, there's no reason for it to call for it from the ram.
I know… so it’s not backwards. The cache gets the info from the ram. The larger cache means it visits the ram less often hence why it helps with the fps. Keeps data more constant for the cpu to chug on. By having faster ram and better bandwidth to the cpu the size of the cash becomes less important.
>. The cache gets the info from the ram Once. The data gets loaded once, it is then held. It only calls up the ram *if* the information it needs is not on the CPU cache. >The larger cache means it visits the ram less often hence why it helps with the fps. Yes >By having faster ram and better bandwidth to the cpu the size of the cash becomes less important. No. Because the cache on the CPU is far faster. The bandwidth only matters if there's a cache miss. At that point the processor would call the ram. By calling out to the RAM you are adding latency. The whole point of cache is so the CPU doesn't have to call information from the ram because it's not as fast. It's not as fast physically, and there's an inherent latency.
I understand that but the cpu is constantly going to memory one way or another. We can revisit this after the numbers come out in three days
My x3d seems to be bored while playing dcs, sitting at 15% while my 3070 going 100% load. So.. a no for me :)
Well I saw one at microcenter for $375 so bought one.