Intel BX80646I74790S Core i7 4790S 3.2 GHz CPU

Product Information

S-series processors are supposed to be lower wattage (that is how they are primarily advertised by Intel) so the slightly lower performance is to be expected and in some ways is secondary to the power draw of the S-series CPUs. What we found was that the 4790S did indeed draw less power when five to eight threads were being used, but with fewer than five threads the 4790S actually pulled more power than the standard 4790 by an average of 6%. Max Turbo Frequency refers to the maximum single-core processor frequency that can be achieved with Intel® Turbo Boost Technology. See www.intel.com/technology/turboboost/ for more information and applicability of this technology. Single-Core สูงสุดที่เทคโนโลยี Intel® Turbo Boost สามารถทำได้ โปรดดู www.intel.com/content/www/th/th/architecture-and-technology/turbo-boost/turbo-boost-technology.html สำหรับข้อมูลเพิ่มเติม http://ipt.intel.com/ หากต้องการทราบว่ามีระบบใดบ้างที่สนับสนุนเทคโนโลยีการป้องกันข้อมูลส่วนตัวจาก Intel® To sum up, all the official specifications really tell us is that S-series processors may be a bit slower and may run a bit cooler than their standard equivalent but it is far from conclusive. For that, we will need to perform our own testing. Test Setup

Temperature: Even though the 4790S used more power in some applications than the 4790, we didn't really see the 4790S running any hotter than the 4790 in those instances. When the 4790S does use less power, however, we saw a drop in temperature of up to about 5 °C. This isn't insignificant, but at the same time is not going to be a game changer in most situations. Power Draw: Our testing between a Core i7 4790S and a Core i7 4790 indicates that S-series processors draw less power when more than half the threads on the CPU are being used. On the other hand, our testing also showed that the 4790S actually draw slightly more power when less than half threads are being used.Performance: On applications that can only utilize a few threads, the S-series CPUs are essentially identical in performance to their standard counterparts. If an application can use a higher number of CPU threads (or if many applications are running at once), however, the S-series CPUs can be as much as 5% slower than the standard models. HDD, คอนโทรลเลอร์สำหรับกราฟิก, หน่วยความจำ, BIOS, ไดร์เวอร์, Virtual Machine Monitor-VMN, ซอฟท์แวร์แพลตฟอร์ม และ/หรือระบบปฏิบัติการ) สำหรับความเข้ากันได้ของคุณสมบัติ ฟังก์ชันการทำงาน, ประสิทธิภาพ และประโยชน์อื่นๆ ของคุณสมบัตินี้อาจแตกต่างกันไปตามการกำหนดค่าของระบบ

To compare the official specifications between S-series CPUs and their standard counterparts we took four of the latest generation Haswell CPUs. There are, of course, more models available from Intel, but we've found that the differences between S-series and their standard counterparts to actually be very consistent, so this is a good representation of the S-series as a whole. Basic CPU Specifications Likely, the inconsistencies we found in the previous section are related to how many threads each benchmark is able to utilize and how that affected the amount of Turbo Boost each CPU received. To determine the actual amount of Turbo Boost available to our test CPUs based on the number of active threads we ran Prime95 on each CPU with the bechmark limited to between one and eight active threads. All driver and Windows updates were applied prior to testing. Coretemp was used to record both the CPU temperature and operating frequency along with a "watts up? PRO" power meter with USB logging to record the system power draw. Real world difference between 4790 and 4790S Intel อาจเปลี่ยนแปลงวงจรชีวิตการผลิต ข้อมูลจำเพาะ และรายคำอธิบายผลิตภัณฑ์ได้ตลอดเวลาโดยไม่ต้องแจ้งให้ทราบล่วงหน้า ข้อมูลในที่นี้มีให้แบบ "ตามที่เป็น" และ Intel ไม่สามารถยืนยันหรือรับประกันแต่อย่างใดเกี่ยวกับความเที่ยงตรงของข้อมูลนี้ รวมไปถึงคุณสมบัติของผลิตภัณฑ์ ความพร้อมวางจำหน่าย ฟังก์ชั่นการทำงาน หรือความเข้ากันได้ของผลิตภัณฑ์ที่ระบุ โปรดติดต่อตัวแทนจำหน่ายระบบสำหรับข้อมูลเพิ่มเติมเกี่ยวกับผลิตภัณฑ์หรือระบบเฉพาะWe have no explanation for why this is, although it could simply be that we had an unusually hot running 4790S and an unusually cool running 4790. Either way, our testing with these sample CPUs indicates that the 4790S is actually only lower power when more than half of the total CPU threads are under load. Conclusion See http://www.intel.com/content/www/us/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html?wapkw=hyper+threading for more information including details on which processors support Intel® HT Technology.