baloofarsan said:
I know it is hard for people on the internet to attain information (hint: it is two links away). "Assumptions A number of assumptions are used in the study (as described below).
General Assumptions Active power consumption of PS3 will be the same for downloaded and BD gameplay. Game data can be read from the spinning BD and often is, at least partially, installed from BD to the hard disk. Online games are downloaded to, and then played from, the spinning hard disk. If games were to be played 100% from the BD drive (versus hard disk in the download scenario), then the differential power use of these hardware components would need to be considered. Even in a possible extreme case, for example, if the console hard disk used 3 watts (W) less power than the BD drive, this would only reduce carbon emissions for the download scenario by 1%, which is not substantial enough to affect the results of the study. Blu-Ray Assumptions Carbon emissions arising from the electronic transfer of one master copy of each game from the studio for production are negligible, compared to the number of units of each game produced. negligible, compared to the number of units of each game produced. Trucks are unlikely to be fully utilized on return journeys. It is assumed therefore that half of all returning transport will be empty (SCEE 2013). Transport distance from Austria to the UK is all by road (representing an extreme case for continental Europe). Wooden pallets and shipping boxes used for BD distribution will not be reused or recycled by retailers.3 Consumers will buy discs from retail outlets along with only nine other items. In practice, they may purchase a single game (subsequent to the launch of a new game) or many more items (such as during a trip to a supermarket) in which case emissions are allocated across all of the purchases. There appears to be little reliable data on average numbers of items purchased by consumers during any shopping trip, and types of retail outlets differ widely. Ten items are assumed here and tested using sensitivity analysis below (assuming a minimum of one item and a maximum of 100 items). Shoppers will travel by car to retail outlets. Download Assumptions Browsing the online store for a downloadable game will be at a data rate of 50 kilobytes per minute over 10 minutes (based on checks conducted browsing online retail websites by one of the authors). Consumers turn off their television (which is normally on when the console is in gameplay mode) while downloading a game. Games are usually downloaded in the background while the console is used primarily for other purposes. Because average on-time for each PS3 is 1.9 hours per day (Webb et al. 2013), files taking longer than this to download, on average, will result in consoles being left on until complete. Average distance from household to incineration or landfill is 50 kilometers (km; to reflect that landfill or incineration facilities usually are commissioned to serve local municipal geographies, such as county councils in the UK). To calculate game usage by first users (see Data Collection below), it is assumed that one half of disc games are reused once, that average gameplay time is representative of both first and subsequent use (reuse), and that, in 2010, 95% of games were distributed by disc (which are reasonable assumptions based on discussions with industry experts). Sensitivities to uncertainties for a number of these assumptions are analyzed in the results below." |
Yeah, waaaaay too many baseless assumptions made by the "researchers" or whatever they claim to be. The entire article is bonkers.
You're Gonna Carry That Weight.
Xbox One - PS4 - Wii U - PC
