The power consumption of each GeForce GTX 965M including its MXM board and memory should be around 70 W, leading to a total TDP of about 140 W. More information on these features are available here. Several parallel streams, such as picture-in-picture in a Blu-Ray movie, are also possible.įurther features of the GTX 900M series, which are also partly supported by older cards, include Battery Boost (longer battery life during gaming), Shadowplay (recording of gaming videos up to 4K60p and 130 Mbit/s) and Gamestream (game streaming on Shield console). The video processor VP6 supports the usual formats like H.264 and can also decode and encode H.265 with a resolution of up to 4K via the NVENC API (hybrid H.265 decoder, not fully fixed function). As with previous models, 3D Vision is not supported with Optimus. HD audio formats like Dolby True HD and DTS HD can be sent to a compatible receiver as bitstream. Displays can be connected with a maximum resolution of 3840 x 2160 pixels via DisplayPort 1.2 or HDMI 2.0 (no HDCP 4K). With the GTX 965M, there can be up to 4 active displays, but this will likely decrease due to Optimus. Most of the features are identical to the GeForce GTX 800M series. Therefore, the GTX 965M SLI is powerful enough to run even the most demanding games with highest details, AA/AF and/or resolutions exceeding FullHD. In this case, the GTX 965M SLI beats a single GeForce GTX 980M by about 10 percent. With good driver support, SLI almost doubles the performance of a single card. Aside from the improved polymorphic engine in the SSMs, it is also the first Nvidia chip to support DirectX 12 Feature Level 12_1. Compared to the mid-range GM107, the newer and larger GM204 has several additional features and changes. Furthermore, the L1 (96 KB per SMM) and L2 caches (2 MB) have been significantly increased to lower the needed bandwidth. Thanks to an improved compression algorithm, the connection to the GDDR5 memory should be significantly more efficient per MHz. The memory interface has a bandwidth of 128-bits (2x 64 bit) for each of the two GPUs. In addition, there are 32 ROPs in two clusters with 16 units each. As a result, only 1024 shader ALUs and 64 TMUs are active. But, in the GeForce GTX 965M, Nvidia have deactivated 8 of 16 SMMs. The GM204 features four GPCs, and each consists of four SMMs. Now each SMM contains only 128 shader units and 8 TMUs, which is noticeably less than an equivalent Kepler GPU. Among other changes, Nvidia have restructured the streaming multi processors (SMM) in order to increase workload and efficiency. GM204 is based on Nvidia's Maxwell architecture, which replaces the previous Kepler generation. This happens because of different timespans between two frames (e.g., irregular delays between sequential frames). Therefore, it may suffer from micro stuttering in low fps ranges of 30 fps. With SLI, each card renders a single frame (AFR mode). The clocks for the SLI-setup are usually identical to a single GTX 965M (924 MHz GPU, 1250 MHz memory). Each card has a 28 nm GM204 GPU based on the Maxwell architecture, which is the same chip as found on the GTX 980M, GTX 970M as well as several desktop cards. The NVIDIA GeForce GTX 965M SLI is a high-end DirectX 11-compatible graphics solution for laptops, consisting of two GeForce GTX 965M. NVIDIA GeForce GTX 965M SLI ► remove from comparison The power consumption of the CF combination is very high (2x 100 Watt) and is thus only suited for very large desktop replacement laptops. Regardless, modern and demanding games like Battlefield 3 or Metro Last Light are still playable in high resolution and max. As of 2013, however, the Crossfire solution currently suffers more from micro stuttering than Nvidia SLI solutions. The Performance of two HD 8970M GPUs in Crossfire mode is similar to the GeForce GTX 680M SLI an just slightly below the GTX 780M SLI. Compared to the 7970M, the 8970M is based on the same chip but offers an increased core clock rate by 50 MHz when in Turbo. The GCN (graphics core next) architecture supports DirectX11 and OpenGL 4.2. More information on the features of the single 8970M can be found on the GPU page. The HD 8970M is based on the desktop HD 7870 Pitcairn chip with 1280 1D shaders and 80 texture units. Therefore, it may suffer from micro stuttering in low frame rates below 30 FPS due to staggering timespans between two frames (e.g., irregular delays between sequential frames). The AMD Radeon HD 8970M Crossfire (also known as the ATI Mobility Radeon HD 8970 X2 or CrossFireX) is a combination of two high-end graphics card for big and heavy laptops. Usually, each single card renders a single frame in an alternating manner. AMD Radeon HD 8970M Crossfire ► remove from comparison
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