In terms of parameters, the R9 7945HX3D processor has 16 cores and 32 threads, the acceleration frequency is 5.4GHz, and the L2+L3 cache reaches 144MB. For comparison, AMD’s previously released R9 7945HX has 16 cores and 32 threads, an acceleration frequency of 5.4GHz, and an L2+L3 cache of 80MB.

In terms of performance, the R9 7945HX3D is supported by a large 3D V-Cache, the game performance is increased by 11% at 70W TDP, and the game performance is increased by 23% at 40W TDP.

In terms of overall game performance, the R9 7945HX3D has a 15% improvement in 1080p games compared to the R9 7945HX.

The AMD R9 7945HX3D processor will be available on August 22 with the new ROG gaming notebook.

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AMD is currently shipping four CPUs with 3D V-Cache, one for the AM4 slot and three for the AM5 slot.

During a visit to AMD’s campus, Gamers Nexus spotted several samples of unreleased 3D V-Cache CPUs, including several Ryzen 7000 “Zen 4” and two Ryzen 5000 “Zen 3” architecture designs. “Images of the following are attached:

Ryzen 9 5950X3D 3D V-Cache Prototype

Ryzen 9 5900X3D

The Zen 3 CPUs on this list include the Ryzen 9 5950X3D and Ryzen 9 5900X3D, with 16 and 12 cores respectively.

Both CPUs are unique in that they have 3D V-Cache stacks on both CCDs, allowing for up to 192 MB of L3 cache.

Each stack provides 64 MB of L3 cache for a total of 128 MB, with an additional 64 MB of cache configured in each CCD as 32 MB of standard L3.

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Ryzen 9 7950X3D 16-core(2-CCD)

Ryzen 9 7900X3D 12-core (2-CCD)

Ryzen 7 7800X3D or Ryzen 7 700X3D 8-core (1-CCD)

If AMD maintains the same 64MB per chip stack design as the first-gen 3D V-Cache chips, the Ryzen 7000X3D parts will end up with 192MB of L3 cache for 2-CCD and 96MB for 1-CCD SKUs, with Compared with non-X3D parts, the amount of L3 cache available on this chip has been increased by 3 times.

Other information shared by the agency suggests that the clock speeds of the AMD Ryzen 7000X3D 3D V-Cache CPU family will be close to or similar to the non-3D parts. The base clock of the Ryzen 7 5800X3D is 400 MHz lower than the non-3D SKU, and the boost clock is 200 MHz lower. In terms of multi-core and single-core performance, it would certainly be a big advantage for the upcoming 3D V-Cache part to retain similar clock speeds, since it wouldn’t benefit from the extra cache.

The previous generation V-Cache CPU, namely the Ryzen 7 5800X3D, lacked support for overclocking, and it was downclocked compared to the non-V-Cache parts in order to save power (voltage). Zen 4 V-Cache CPUs will allegedly relax these voltage constraints, and while their clock speeds are also expected to be lower than standard non-V-Cache parts, they will run at higher speeds than before, and the gap will not be as large as As obvious as ever.

AMD Ryzen 7000X3D 3D V-Cache is expected to be launched in January 2023. Please note that these chips will only be unveiled at the above-mentioned events, and the official release of the products will take place later.

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Wassick found more TSV columns in the Zen 4 CCD, suggesting that the 3D cached variant of the new Ryzen 7000 processor could provide more bandwidth in hardware than the Ryzen 7 5800X3D this time around.

Through Silicon Vias (TSV) is the latest direction of three-dimensional stacked silicon device technology. Stereoscopic (3D) vertical integration through through-silicon via (TSV) copper interconnects is currently considered one of the most advanced technologies in the semiconductor industry, enabling greater space efficiency and higher interconnect density.

There are said to be two larger, denser arrays of TSVs on the Ryzen 7000 chip, with some spacing reduction — as well as an extra column of TSVs. This means that the Ryzen 7000 3D V-Cache’s substrate will have more contact area with the CPU, resulting in greater L3 cache bandwidth and possible extra power.

3D V-Cache is AMD’s technology for stacking L3 caches, which doubles the L3 cache on its chip by adding 64MB of SRAM cache to Ryzen’s CCD, thereby significantly improving work that is sensitive to L3 cache. Actual performance of loads, especially games.

The only consumer-facing 3D V-Cache chip AMD has released so far is the R7 5800X3D, which has a total of 96MB of L3 cache.

For the additional TSV contacts in the Ryzen 7000 mentioned above, this means that AMD is preparing higher bandwidth performance for its second-generation stack cache, even exceeding the 2Tbps bandwidth of the Ryzen R7 5800X3D.

Some netizens believe that this (extra contacts) may also be one of the reasons for the high power supply of this generation of AMD processors. After all, the extra power can also provide a stronger performance guarantee for V-Cache, but this ultimately depends on AMD By design choice, subsequent 3D models may be more efficient and save more power than current models.

Simply put, these extra TSVs don’t represent how AMD’s next-gen 3D V-Cache will perform, or how much better it must be than the 5800X3D or Ryzen 7000 regular models, it just means that the Ryzen 7000X3D will bring better performance than the 7 5800X3D higher bandwidth.

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(via WCCFTech)

AMD had earlier said that the Ryzen 7000 CPUs with 3D V-Cache technology would be unveiled later this year during the FAD 2022 conference, but the plans still haven’t kept up with the changes.

"Saeid Moshkelani, AMD senior vice president and general manager of the Client Division, pointed out that the R7-5800X3D is the best gaming processor on the market, and there is no 'one'.

We're proud of what V-Cache technology brings to the table and will be adopting it later this year, as well as in the next generation of Ryzen 7000 series CPUs."

The Zen 4 Ryzen 7000-series AM5 processors have been compared to 12th-gen Alder Lake until Intel’s 13th-gen Raptor Lake rivals hit the market.

Embarrassingly, the first Ryzen 7000 series CPU models without 3D V-Cache blessing also face competition from their own AM4 SKUs (such as R7-5800X3D).

As for the AM5 3D V-Cache processor that AMD intends to bring during CES 2023, it is said that there will be one more model than the AM4 platform – one for enthusiasts and the other for mainstream gamers.

By the way, one of the big regrets of the previous generation Zen 3 / V-Cache processors was the lack of support for overclocking features. And in order to reduce power consumption (voltage curve), AMD even lowered the voltage of the R7-5800X3D a bit compared to the non-V-Cache SKU.

The good news is that while the Zen 4/V-Cache parts are still less clocked than the non-V-Cache models, the Ryzen 7000X3D is expected to at least ease the voltage constraints, further closing the performance gap between clock rates.

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