NVIDIA GEFORCE GTX 965M SLI review is powerful DirectX 11-compatible graphics card for notebooks, which consists of two GeForce GTX 965M. Each card is built on 28 nm core GM204, based on the architecture of Maxwell, similar to the GTX 980M and GTX 970M. Clock speeds have SLI-cards, generally correspond to the level of a single GTX 965M (924-1250 MHz).
The principle of SLI concluded in alternate frame processing each video card in the bundle. Due to the different time intervals that can be between two successive frames can be observed at a low frequency to 30 fps.
GM204 is based on the architecture of Maxwell, which replaced the previous generation Kepler. The new generation of NVIDIA restructured streaming multiprocessor (SMM) in order to increase efficiency and effectiveness. Now every SMM has only 128 shader units and 8 TMU, which is considerably less than the equivalent to the generation of chips Kepler. GM204 supports four GPC SMM with four each, but in GeForce GTX 965M deactivated 8 of 16 SMM, therefore, they are active only in 1024 shader ALU and 64 TMU. In addition, there are 32 ROP in two clusters with 16 units each.
Memory: NVIDIA GEFORCE GTX 965M SLI Review
The memory interface has a bandwidth of 128 bits (2×64 bits) for each of the dual-GPU in tandem. By optimizing the compression algorithm to use GDDR5 memory has become much more efficient in terms of 1 MHz. In addition, the cache L1 (96 KB per SMM) and L2 (2 MB) were significantly expanded in order to reduce the bandwidth required. Compared with the mid-level graphics core GM107, a new and more powerful GM204 has improved performance polymorphic engine with SSM. It is also the first chip from NVIDIA with support for DirectX 12 level 12_1.
With good drivers, SLI mode almost doubles the graphics performance compared to a single graphics card. In this case, the NVIDIA GEFORCE GTX 965M SLI review is faster than a single NVIDIA GeForce GTX 980M is about 10%. Thus, a bunch GTX 965M SLI solution is powerful enough to handle even the most demanding games on high settings, AA / AF and / or with a higher resolution than Full HD.
Most of the functions available NVIDIA GEFORCE GTX 965M SLI review, identical to the GeForce GTX 800M series. With SLI, you can connect up to four monitors (if the number is not limited Optimus). The maximum resolution of the screen can be connected to 3840h2160 pixels; it connects via DisplayPort 1.2 and HDMI 2.0 (no HDCP 4K). HD audio format such as Dolby True HD and DTS-HD can be treated as a bitstream. By analogy with the previous models, the graphics card, 3D Vision mode in GeForce GTX 965M SLI is not supported with Optimus.
Video processor: NVIDIA GEFORCE GTX 965M SLI Review
VP6 video processor works with the usual formats, eg, H.264, and can decode and encode H.265-video resolutions up to 4K through NVENC API. It is also possible to process Blu-ray-files. In addition, the GTX 900M graphics card lineup boasts of having functions Battery Boost (increased battery life in gaming), Shadowplay (record gameplay format to 4K60p and 130 Mbit / s) and Gamestream (streaming PC games SHIELD).
TDP every video card NVIDIA GEFORCE GTX 965M SLI review of the bunch is about 70 watts, the amount would be about 140 watts. Therefore, SLI-card can only be used on a large gaming notebook with the powerful cooling system. At low load dynamic frequency change makes graphics cards work in a power saving mode.