https://safirsoft.com Valve helps design custom Steam Decks

Energy saving features, software compatibility advantage in wide delivery.

A complete multi-hour presentation focused on Valve Developer. ReadingValve has also postponed the Steam Deck launch by two months until February 2022. The portable Steam Deck Valve may be delayed by several months, but that didn't stop Valve from discussing the exciting details of the system during Friday's developer-focused livestream. . This included a lot of serious talk about hardware specs and software fulfillment, but also design decisions about how to balance hardware and battery power concerns. ReadingValve further promises that Steam Deck will run "the entire Steam library" at 30+ frames per second. AMD says the system is the company's first mobile chip to feature the RDNA2 GPU architecture, so it should have full support for DirectX 12 and the latest Vulkan APIs. Valve says this means that the Steam Deck is not only compatible with the entire Steam library, but many Steam games are already optimized to configure specific chips inside.

The CPU portion of the Aerith chip includes four Zen 2 cores capable of running eight threads at a frequency of 3.5GHz. Meanwhile, the GPU contains eight RDNA2 computing units running at 1.6GHz.

While most Steam games these days only run with 8 or 12 GB of RAM, Valve announced that the resolution has 16 GB of LPDDR5 RAM on Steam. Deck because "We want to make sure that Steam Deck is not only compatible with today's games, but can play games that haven't been released yet." At least 1 GB of this RAM is allocated to the GPU, but Steam Deck's built-in architecture means the GPU can access up to 8 GB depending on what's going on in the game, or even game to game depending on This limitation. . The 128-bit RAM bus also allows for 88Gbps of total memory bandwidth, or 55Gbps/TFLOP, which Valve says beats some desktop GPUs.

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Regarding storage space, Valve said it ran its tests, and they showed little difference in real-time load time between eMMC drives (on lower Steam Deck models), NVMe SSD (on higher models) and an SD card reader Internal, though, at bandwidth speeds. Very different ranges for each option, and the start time between them was 25% or less different in initial valve testing (although the company said testing wasn't very comprehensive at the moment).

Battery Sip

Valve spent a lot of time talking about how the Steam Deck improves battery life, which is specifically designed to fit a small power pack in the 4-15W range, where the ram is LPDDR5 randomization is also useful. , without the lack of power-saving features used in low-stress scenarios such as 2D gaming and idle/sleep modes. This means that a suspended Steam Deck should last "hours or even days" without the need for power delivery.

However, when connected via USB-C, the Surface can deliver 45 watts of power. The power is enough to charge at full speed and save a game at the same time. The Steam Deck can also provide 7.5 watts of power to connected peripherals, enough for power supplies and cameras, wired consoles, or external storage devices. For wireless accessories, Bluetooth 5.0 means the Steam Deck can support wireless headphones and "multiple controllers" at the same time. It can also be converted to Bluetooth for low energy applications.

Valve says it wants to make sure its APU delivers consistent performance rather than relying on "turbo boost" or other modes that can be activated temporarily. Hardware power (and power consumption) in laptops and phones. Valve said that a game on Steam Deck should have the same performance in the first 10 seconds and after hours of continuous use, and game performance on Steam Deck should be consistent, both in terms of power, battery, docking, charging, and game loading. Valve said that even above-average ambient temperatures shouldn't impair performance, although if conditions are too hot outside, the system can reduce battery charge, download speeds, and even SSD speeds to speed up the GPU. Keep it as stable as possible. Advertising

Since the APU does not have strict limits on its power consumption, Valve says that games played on Steam Deck should have a frame rate limit of 60 frames per second (for screen compatibility) or 30 frames per second. The second (for games that push the GPU) to conserve battery life. AMD said that the frame rate limit also helps with Steam Deck battery life in many games. If a game renders a frame faster than the 16.66 seconds required for a frame rate of 60 fps, the APU immediately goes into ultra-low power mode until the frame is rendered, and then returns to full mode to calculate the next frame. p>

Valve says it is working on a frame rate limiter to apply the 60/30 fps guidelines to all games running on Steam Deck. Developers will have access to the Extra Knobs to help balance performance and battery life.

Valve helps design custom Steam Decks
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