AMD Ryzen 7 5800X3D review : cache memory

Ryzen  7 5800X3D, which is a little different than AMD, is a processor that  exists in order to show the power of the firm’s 3D V–Cache design for  its Ryzen CPUs. It also fights Intel's 12900KS for title of 'fastest  Gaming Processor'.

AMD has moved from a 2D to 3D design for this third level of cache. This stack of cache takes up more vertical space. This  allows the CPU to store more data at once. It speeds up processing and  increases the likelihood that all the data is available.

AMD  plans to use this technology in its Zen 4 processors. But in the  present, it's only this 5800X3D special, which is an upgraded Ryzen 7  5800X, launched in 2020. The  5800X3D is a bit faster than the 5800X and has some overclocking  controls to enable a larger 96MB L3 cache, which is triple the size of  5800X's.

We're  using an Asus ROG Crosshair-8 Hero for the AMD side. 11th-generation  Intel gets the Asus ROG Maximus Z590 Hero while 12th-generation Intel  gets the Asus ROG Z690 Maximus Hero – all high-end boards suitable for  their respective platforms. DDR4 motherboards were powered by G.Skill 3600MT/s CL16 RAM, while 12th-gen Intel received Corsair 5200MT/s Cl38 RAM.

The  AMD and 11th-gen Intel CPUs were cooled using an Eisbaer Aurora 240mm  AiO. While the 12th-gen testing was done with an Asus ROG Ryujin 2360mm  AiO. Based  on our testing, the 240mm AiOs and the 360mm AiOs provide comparable  performance, especially in open air conditions at 21C. Fan speed is the only thing that makes a difference, and it tends to be higher for the 360mm than the 240mm.

The  5800X3D's most important question is where the upgraded cache will be  useful. Because if a game, or other application does not fit a  particular performance profile, it may not see any performance benefit  running on the 5800X3D. In fact, it may run worse because of the slower  clock speed AMD has sacrificed in order to make the design work. We tested the 5800X3D against an array of content creation and gaming scenarios. We  expect to see significant performance improvements, especially in video  gaming, but first, we will run a Cinebench R20 render and a Handbrake  transcode.

The  5800X3D's content creation results are not particularly impressive. It  outperforms both the Intel 12400F and 5600X, but is still behind its  former competitors, the 12900K 12700K and 5800X (the latter two to six  percent). It's  not surprising that this is the case. Since neither task would benefit  from a larger cache, you can only see the effects of the new CPUs' lower  core clocks when compared to the 5800X. These  results aren’t necessarily disastrous. This CPU is still capable of  these tasks and easily outperforms previous generations, but not a  class-leading one.