![]() In the GTX 880M, all eight blocks are active for a total of 1536 CUDA cores and 128 TMUs. The GK104 Kepler core offers eight shader blocks, called SMX, that are clocked at the same speed as the central core. The Kepler architecture is the successor to the Fermi architecture that first appeared in laptops with the GeForce 400M series. As of spring 2014, it is the fastest laptop graphics card on the market. Similar to the GTX 780M, it is based on the 28 nm GK104 chip (Kepler architecture), but features a higher core clock rate. The NVIDIA GeForce GTX 880M is a high-end DirectX 12-compatible graphics card for laptops unveiled in March 2014. NVIDIA GeForce GTX 880M ► 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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