Find out what AMD Smart Access Memory is all about, and how to turn it on for a FREE BOOST in performance!
Smart Access Memory : PCIe Resizable BAR for AMD!
Smart Access Memory is AMD’s marketing term for their implementation of the PCI Express Resizable BAR (Base Address Registers) capability.
What does that mean exactly?
CPUs are traditionally limited to a 256 MB I/O memory address region for the GPU frame buffer. This of it as an “data dump” for stuff like textures, shaders and geometry.
Since this “data dump” is limited to 256 MB, the CPU can only send texture, shader and geometry data as and when the GPU requires them.
This introduces some latency – delay from when the GPU requires the data, and the CPU send them.
Turning on Resizable BAR or Smart Access Memory greatly expands the size of that data dump, letting the CPU directly access the GPU’s entire frame buffer memory.
Instead of transferring data when requested by the GPU, the CPU processes and stores the data directly in the graphics memory.
Graphics assets can be transferred to graphics memory in full, instead of in pieces. In addition, multiple transfers can occur simultaneously, instead of being queued up.
While this AMD graphic above suggests that Smart Access Memory will widen the memory path (and thus memory bandwidth) between the CPU and GPU, that is not true.
Smart Access Memory / Resizable BAR will not increase memory bandwidth.
What it does is let the CPU directly access the entire GPU frame buffer memory, instead of using the usual 256 MB “dump”. That reduces latency because the graphics assets are now accessible by the GPU at all times.
AMD Smart Access Memory : Performance Gains
According to AMD, enabling Smart Access Memory will give you a small but free boost of 5% to 11% in gaming performance.
You can expect up to 16% better performance in some games, but no effect in certain games. But overall, you get a free boost in performance. There is simply no reason not to enable Smart Access Memory.
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AMD Smart Access Memory : Requirements
Since Smart Access Memory is just an AMD implementation of PCI Express Resizable BAR. Therefore, it can be be implemented for all PCI Express 3.0 and PCI Express 4.0 graphics cards and motherboards.
Even at 4K, CPU performance mattered in Ashes of the Singularity. The Ryzen 9 5950X delivered just 2% higher frame rates than the Ryzen 7 5800X, and 14% higher frame rates than both the Core i7-8700K and the Ryzen 7 3700X.
May 25, 2017 — Since its release back in April, AMD’s Ryzen platform has quickly established itself as a viable option, delivering exemplary performance for daily computing and gaming.
ASUS was ready for the early unveil, releasing an array of motherboards for value-packed PCs to models geared for high-end rigs. However, pressing demand for Ryzen-based systems shows a need for more options in the middle of the ASUS product stack.
So today, ASUS is bolstering their portfolio with two new AM4 motherboards aimed squarely at gamers who wish to utilize Ryzen performance in their next PC build.
The Strix X370-F Gaming & Strix B350-F Gaming
The ROG Strix X370-F Gaming and Strix B350-F Gaming are new ATX gaming motherboards with AMD AM4 socket for Ryzen processors, engineered with core ROG features.
Features include 5-Way Optimization with one-click overclocking, third-gen T-Topology, SupremeFX S1220A audio, and Aura Sync illumination. Comprehensive software and firmware controls for fans, AIOs, and water pumps, for intelligently cooled gaming builds.
The Strix X370-F Gaming Specifications
AM4 socket for AMD Ryzen / 7th Gen A-series / Athlon processors
AMD Ryzen processor
4 x DIMM, max. 64GB, DDR4 3200+(OC)/2666/2400/2133 MHz, Ecc and non-ECC, unbuffered memory*
May 8th, 2017 Taipei, Taiwan – BIOSTAR is thrilled to welcome the latest addition to its expanding lineup of specialized cryptocurrency mining motherboard with the introduction of the BIOSTAR TB350-BTC.
The BIOSTAR TB350-BTC Crypto Mining Motherboard
This motherboard supports AMD’s latest AM4 socket designed to work with the latest AMD AM4 APUs. With this latest motherboard, BIOSTAR is the first and only brand to offer a complete crypto mining motherboard lineup for any application making it the strongest family of specializing mining motherboards out right now.
Not to mention, BIOSTAR TB350-BTC is the first professional crypto mining motherboard for AMD AM4 platform. This is specially designed for AMD Ryzen lovers. They offer a performance and cost effective solution to make crypto mining easier for all.
BIOSTAR TB350-BTC with six PCI-e slots for enthusiasts who wish to create an ultimate mining rig to be loaded up with six graphics cards to boost up the mining speed for higher hash rate and make the mining performance most efficient. The uniquely designed two extra AUX power connectors support the sufficient power to enhance the performance of graphics cards for more stable operation.
TB350-BTC is designed to withstand extreme operating conditions that can cause stability issues on traditional components. The enhanced nature of the BIOSTAR PRO Series guarantees its motherboard can endure and avoid issues that can cause downtime and profit loss.
The new BIOSTAR TB350-BTC features support for AMD AM4 processors including AMD A-series APUs. The motherboard will support up to 32GB of DDR4-2667 memory in dual-channel configuration. The board features full Gigabit LAN from Realtek for faster and better network performance. The BIOSTAR TB350-BTC also features support for up to six PCI-e devices allowing maximum utilization of the motherboard for excellent ROI per system.
In terms of rear I/O connectivity, the BIOSTAR TB350-BTC has legacy PS/2 connector support, a single DVI for video output. There’s plenty of USB ports in there with USB3.1 ports and USB2.0 ports. There’s also the Realtek GB LAN port and audio output ports.
The BIOSTAR TB350-BTC Specifications
Socket AM4 supports AMD A-Series APU/CPU
Maximum CPU TDP (Thermal Design Power) : 95Watt
Supports Dual Channel DDR4 1866/2133/2400/2667
2 x DDR4 DIMM Memory Slot, Max. Supports up to 32 GB Memory
Each DIMM supports non-ECC & ECC 4/8/16 GB DDR4 module
* DDR4 – 2667 only for Ryzen CPU.
SR:Single-rank DIMM, 1R x4 or 1R x8
DR:Dual-rank DIMMs, 2R x4 or 2R x8
3x PCIe 2.0 x1 Slot
2x PCIe 3.0 x1 Slot (for Bitcoin mining, please change the speed to PCI-E 1.0 in BIOS setting)
1x PCIe 3.0 x16 Slot : When using APU or NPU, the bandwidth is x8 speed
4x SATA III Connector (6Gb/s)
Supports AHCI & RAID 0, 1, 10
6x USB 3.1 Gen1 (5Gb/s) port (4 on rear I/Os and 2 via internal headers)
6x USB 2.0 port (2 on rear I/Os and 4 via internal headers)
Realtek RTL 8111H
10/ 100/ 1000 Mb/s auto negotiation, Half / Full duplex capability
7.1 Channels, High Definition Audio
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On the second day of Computex 2016, AMD publicly revealed the first processor to use their new x86 Zen processor core architecture. Codenamed “Summit Ridge“, the desktop processor will come with eight AMD Zen processor cores that are capable of processing sixteen threads simultaneously.
The AMD Zen core architecture has been along awaited, because it is the first fresh design that was not derived from AMD’s existing Bulldozer architecture. Built around the SMT (simultaneous multithreading) microarchitecture, AMD Zen will offer much better core performance at the cost of a larger die. It will also feature a new 14 nm FinFET process technology and use the new AM4 socket.
AMD “Summit Ridge” Desktop Processor Revealed
We were present at the Westin Taipei, when Dr. Lisa Su, President and Chief Executive Officer, AMD, officially announced the AMD “Summit Ridge” desktop processor, before publicly revealing an example. Check it out!
Dr. Lisa did not reveal many details of the new AMD Summit Ridge processor though. Here are the key takeaways from her speech :
The new AMD Zen core will deliver 40% more instructions per cycle than the previous-generation Excavator core.
The AMD “Summit Ridge” desktop processor will have 8 core that can process 16 threads simultaneously.
The AMD “Summit Ridge” desktop processor will be built on the new FinFET process technology, and use the new AMD AM4 socket.
The AMD Zen core is designed across multiple segments including high-performance desktops, servers, notebooks and embedded solutions.
Although not mentioned, the AMD “Summit Ridge” processor will only support DDR4 memory.
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