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AMD Talks Improved Ryzen Memory Support, Ryzen 3, and Game Optimization

AMD, in an interview with Forbes, confirmed that it is working to improve DDR4 memory support of its Ryzen series processors, to enable higher memory clocks. AMD Ryzen users find it difficult to get DDR4 memory clocks to run above 3000 MHz reliably. With memory clock being linked with the chip's Infinity Fabric clock (the interconnect between two CCX units on the "Summit Ridge" silicon), the performance incentives for higher memory clocks are just that much more.

AMD confirmed that its AGESA update for May improves DDR4 memory compatibility, although it also stressed on the need for motherboard manufacturers to improve their board designs in the future, with more PCB layers and better copper traces between the DIMM slots and the SoC socket. The company assures that more updates to AGESA are in the pipeline, and would improve performance of Ryzen processors at various levels. The AGESA updates are dispensed through motherboard vendors as BIOS updates.

AMD Ryzen 9 Series "Threadripper" CPU Socket Detailed

AMD Ryzen 9 "Threadripper" series 12-core, 14-core, and 16-core client desktop processors, which will form the company's next-generation high-end desktop (HEDT) lineup, which goes against Intel Core i9 "Skylake-X" series, could come in a brand new socket. This shouldn't come as a surprise because the chips have higher electrical requirements, besides double the I/O of socket AM4 Ryzen processors, such as a 44-lane PCIe gen 3.0 root complex, quad-channel DDR4 memory interface, and more. This socket, according to a "HotHardware" report, is an LGA (land-grid array) with 4,094 pins.

The new LGA-4094 socket, so-called SP3r2, will be slightly scaled up from the SP3 socket AMD has been selling enterprise Opteron-brand multi-socket CPUs on (pictured below). The consumer version of this socket could feature a more user-friendly retention mechanism that shouldn't require a screwdriver to fasten. Motherboards based on this distinctively rectangular socket will feature up to eight DDR4 DIMM slots to hold quad-channel DDR4 memory, and over four PCI-Express 3.0 x16 slots, with support for 3-way and 4-way multi-GPU solutions. The motherboards will also feature copious amounts of onboard devices, M.2 slots, and other storage connectivity. Since "Threadripper" is rumored to be a multi-chip module of two 14 nm "Summit Ridge" dies linked together on-package with with an Infinity Fabric interconnect, only one of the two dies links to the motherboard chipset (AMD X399 chipset), while all the PCIe lanes of the second die (including those which would make up the chipset bus) are freed up.

Ashes of the Singularity: Escalation Update Brings Improved Performance to Ryzen

Some outlets are reporting that Stardock's Ashes of the Singularity is about to receive the much-referred-to patch that allows for improved performance on AMD's Ryzen line of processors. If you remember, rivers of ink flowed regarding AMD's Ryzen performance in gaming, with its monstrous, high-performance 8-core, 16-threaded design sometimes delivering performance below expectations. At the time, AMD clarified how Ryzen is a distinctive CPU architecture, similar yet fundamentally different from Intel's x86 implementation, promising upcoming patches from game developers that would allow Ryzen's architecture to truly deliver.

After Creative Assembly and Oxide Games vouched to improve Ryzen support, Oxide seems to be the first developer with a patch available (from version 25624 to 26118) that improves performance by up to 30%. Reportedly, it took the developers around 400 work-hours to improve the game code in respect to its execution on AMD hardware.

AMD Ryzen Infinity Fabric Ticks at Memory Speed

Memory clock speeds will go a long way in improving the performance of an AMD Ryzen processor, according to new information by the company, which reveals that Infinity Fabric, the high-bandwidth interconnect used to connect the two quad-core complexes (CCXs) on 6-core and 8-core Ryzen processors with other uncore components, such as the PCIe root-complex, and the integrated southbridge; is synced with the memory clock. AMD made this revelation in a response to a question posed by Reddit user CataclysmZA.

Infinity Fabric, a successor to HyperTransport, is AMD's latest interconnect technology that connects the various components on the Ryzen "Summit Ridge" processor, and on the upcoming "Vega" GPU family. According to AMD, it is a 256-bit wide bi-directional crossbar. Think of it as town-square for the chip, where tagged data and instructions change hands between the various components. Within the CCX, the L3 cache performs some inter-core connectivity. The speed of the Infinity Fabric crossbar on a "Summit Ridge" Ryzen processor is determined by the memory clock. When paired with DDR4-2133 memory, for example, the crossbar ticks at 1066 MHz (SDR, actual clock). Using faster memory, according to AMD, hence has a direct impact on the bandwidth of this interconnect.
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