NVIDIA GeForce RTX 3080 12 GB vs NVIDIA GeForce GT 735M vs NVIDIA GeForce RTX 3060 Laptop GPU

NVIDIA GeForce RTX 3080 12 GB

The Nvidia GeForce RTX 3080 12GB is high-end desktop graphics card based on the Ampere generation. It uses the big GA102 chip and offers 8,704 shaders and 12 GB GDDR6X graphics memory. Compared to the older 10 GB model, the 12 GB model offers more bandwidth and therefore a higher TDP.

The gaming performance in 4k is clearly better than the old GeForce RTX 2080 Ti (approximately 15% faster). Therefore, even demanding games should run with maximum detail settings in 4k. Enabling raytracing will however reduce the framerate and therefore maximum details won't be playable. 

The RTX3080 is produced in 8nm at Samsung and rated at 350 Watt.

NVIDIA GeForce GT 735M

The NVIDIA GeForce GT 735M is a DirectX 11 graphics card of the middle class, which has been presented in spring 2013. It is based on the Kepler architecture and manufactured by TSMC in a 28-nanometer process. The GK208 chip (384 shaders) is clocked at up to 889 MHz plus boost and has a 64 bit memory interface (DDR3). Despite the nominally higher classification, the GT 735M is therefore slower than the 128-bit version of the GT 730M.

Architecture

The GK208 is a slightly revised version of the previously Kepler chip GK107. Although both have the same number of shader units (384 ALUs), the memory interface has been cut down from 128 to 64 bits.

The GK208 supports PCIe 3.0 as well as GPU Boost 2.0. This feature can automatically overclock the card if the laptop cooling system allows it. GPU Boost 2.0 is available on any notebook with a graphics card of the 700M series.

Performance

Depending on the clock rate, the performance of the GT 735M is somewhere between the GT 640M LE and the GT 640M. In particular, the narrow memory interface limits the performance significantly. Current games (as of 2013) can thus be played fluently only in low or medium settings. In older titles, there are also reserves for higher quality levels.

Features

The feature set includes support for up to 4 active displays. Furthermore, high resolution monitors of up to 3840x2160 pixels can now be connected using DisplayPort 1.2 or HDMI 1.4a if available. HD-Audio codecs, such as Dolby TrueHD and DTS-HD, can be transmitted via bitstream mode through the HDMI port. However, as most laptops will feature Optimus, the integrated GPU will likely have direct control over the display ports and may limit the feature set available by the Nvidia Kepler cards.

The 5th generation PureVideo HD video processor (VP5) (also integrated in the GK107 core) offers hardware decoding of HD videos. Common codecs such as MPEG-1/2, MPEG-4 ASP, H.264 and VC1/WMV9 are fully supported up to 4K resolutions while VC1 and MPEG-4 are supported up to 1080p. Two streams can be decoded in parallel for features such as Picture-in-Picture. Another feature is the inclusion of a dedicated video encoding engine similar to Intel QuickSync that can be accessed via the NVENCI API.

Power Consumption

The power consumption of the GeForce GT 735M should be similar to the old GT 640M LE (about 20 W), as Nvidia describes the card as a "low power" model. As a result, the GPU is best suited for notebooks 13-14 inches in size or greater.

NVIDIA GeForce RTX 3060 Laptop GPU