![]() GM107/GM108 supports CUDA Compute Capability 5.0 compared to 3.5 on GK110/GK208 GPUs and 3.0 on GK10x GPUs. Nvidia claims a 128 CUDA core SMM has 90% of the performance of a 192 CUDA core SMX. SMM allows for a finer-grain allocation of resources than SMX, saving power when the workload isn't optimal for shared resources. Texture units and FP64 CUDA cores are still shared. The layout of SMM units is partitioned so that each of the four warp schedulers controls isolated FP32 CUDA cores, load/store units and special function units, unlike Kepler, where the warp schedulers share the resources. Nvidia also changed the streaming multiprocessor design from that of Kepler (SMX), naming it SMM. Accordingly, Nvidia cut the memory bus to 128 bit on GM107 from 192 bit on GK106, further saving power. Nvidia increased the amount of L2 cache on GM107 to 2 MB, up from 256 KB on GK107, reducing the memory bandwidth needed. When decoding video, a new low power state "GC5" is used on Maxwell GPUs to conserve power. ![]() GEFORCE GTX 860M GB FULLHowever, HEVC is not supported for full hardware decoding, relying on a mix of hardware and software decoding. ![]() Nvidia also claims an 8 to 10 times performance increase in PureVideo Feature Set E video decoding due to the video decoder cache paired with increases in memory efficiency. Nvidia's video encoder, NVENC, is 1.5 to 2 times faster than on Kepler-based GPUs meaning it can encode video at 6 to 8 times playback speed. įirst generation Maxwell GM107/GM108 provides few consumer-facing additional features Nvidia instead focused on power efficiency. GEFORCE GTX 860M GB SERIESNvidia expects three major things from the Maxwell architecture: improved graphics capabilities, simplified programming, and better energy-efficiency compared to the GeForce 700 series and GeForce 600 series. This enabled Maxwell GPUs to be more independent from the main CPU according to Nvidia's CEO Jen-Hsun Huang. The Maxwell microarchitecture, the successor to Kepler microarchitecture, was the first Nvidia architecture to feature an integrated ARM CPU of its own. However, because mobile GPUs under the GeForce 800M series had already been released using the Kepler architecture, Nvidia decided to rename its GeForce 800 series desktop GPUs as the GeForce 900 series. The GeForce 800 series name was originally planned to be used for both desktop and mobile chips based on the Maxwell microarchitecture (GM-codenamed chips), named after the Scottish theoretical physicist James Clerk Maxwell, which was previously introduced into the GeForce 700 series in the GTX 750 and GTX 750 Ti, released on February 18, 2014. It consists of rebrands of mobile versions of the GeForce 700 series and some newer chips that are lower end compared to the rebrands. ![]() The GeForce 800M series is a family of graphics processing units by Nvidia for laptop PCs. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |