Overclocking is always fun and almost everyone can do it, however, when it comes to extreme overclocking, there are only a handful of persons doing it. Today, a Chinese extreme overclocker "baby-j" has managed to establish a new world record frequency with his Crucial Ballistix Max DDR4-4000 (BLM16G40C18U4B.M8FB1) memory kit. Using liquid nitrogen (LN2) cooling for the DIMMs, the overclocker managed to push the memory kit to an amazing 7004.2 MHz, making it the world's highest frequency hit on DDR4 memory. What is more amazing is the fact that the platform used for the new record-setting overclock, is based on AMD's B550 motherboards running with AMD Ryzen 5 PRO 4650G processor, which seems to have a very good memory controller. The timings were a bit relaxed with them running at 22-26-26-46-127-1 (tCAS-tRC-tRP-tRAS-tCS-tCR) settings.

AMD's recent announcement of its Ryzen 4000G and Ryzen PRO 4000G series desktop processors lacked a key detail - pricing, possibly because it's irrelevant to end users as the processors are sold only in the OEM channel. momomo_us secured a slide (possibly by AMD's channel marketing), which puts out SEP (suggestive) pricing per chip in n-unit tray quantities. Apparently, the Ryzen 7 PRO 4750G, and its energy-efficient -GE variant, are priced at USD $309. The Ryzen 5 PRO 4650G/GE comes with a $209 price, and the Ryzen 3 PRO 4350G/GE at $149.

Prices of the other parts in this slide appear to be stuck at their respective launch-time SEP pricing, since all of the price-cuts AMD implemented appear to be unofficial, and specific to retailers and regions. AMD also updated its familiar-looking processor-to-chipset compatibility slide with the inclusion of the new 4000G series. Apparently the new processors only work with AMD 500-series chipsets, such as the B550, X570, and the commercial-segment exclusive PRO565 chipset. This is strange since "Renoir" is now confirmed to lack PCIe gen 4.0, and only spares gen 3.0 x8 for PEG, which means 400-series chipsets are excluded due to ROM size limitations to squeeze in AGESA microcode supporting several generations of processors and microarchitectures. Interestingly, AMD assured customers of Ryzen 4000-series compatibility with 400-series chipsets. Perhaps they were only referring to the "Zen 3" based "Vermeer" processors, as the slide shows.

Taiwan-based tech publication CoolPC.com.tw published one of the first comprehensive performance reviews of the recently announced AMD Ryzen PRO 4750G, PRO 4650G, and PRO 4350G Socket AM4 desktop processors based on the 7 nm "Renoir" silicon that combines up to 8 "Zen 2" GPU cores with a Radeon Vega iGPU that has up to 8 compute units (512 stream processors). In their testing, the processors were paired with an AMD Wraith Prism (125 W TDP capable) cooler, an ASUS ROG Strix B550-I Gaming motherboard, 2x 8 GB ADATA Spectrix D50 DDR4-3600 memory, and a Seagate FireCuda NVMe SSD.

The benchmark results are a fascinating mix. The top-dog Ryzen 7 4750G was found to be trading blows with the Core i7-10700K, the i7-10700, and AMD's own Ryzen 7 3700X, depending on the benchmark. In CPUMark 99 and Cinebench R20 nT, the PRO 4750G beats the i7-10700 and 3700X while practically matching the i7-10700K. It beats the i7-10700K at 7-Zip (de-compression) and HWBOT x265 video encoding benchmark. The story repeats with the 6-core/12-thread PRO 4650G beating the Core i5-10600K in some tests, and AMD's own Ryzen 5 3600X in quite a few tests. Ditto with the quad-core PRO 4350G pasting the previous generation Ryzen 3 3300G.