NVIDIA GeForce GT 750M vs NVIDIA GeForce GT 740M
NVIDIA GeForce GT 750M
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The NVIDIA GeForce GT 750M is a DirectX 11 graphics card of the middle class. It is based on the Kepler architecture and manufactured by TSMC in a 28-nanometer process. The GK107 chip (384 shaders) is clocked at up to 967 MHz plus boost and has a 128 bit memory interface (mostly DDR3, but GDDR5 also possible).
Architecture
The GK107 Kepler core offers two shader blocks, called SMX, each with 192 shaders for a total of 384 shader cores that are clocked at the same speed as the processor core. Although more shader cores are available in the Kepler architecture as compared to the Fermi design, the Kepler shaders are expected to be up to two times more power efficient. However, due to the missing hot clock of the shader domain, two shaders of a Kepler chip are as fast as one shader of a Fermi chip, even though Fermi shaders are clocked at twice the speed.
PCIe 3.0 is now supported by the mobile Kepler series and GPU Boost 2.0 can automatically overclock the card if the laptop cooling system allows it. This feature is available on any notebook with a graphics card of the 700M series.
Performance
Depending on clock speed, the GT 750M with DDR3 memory is about 10 - 15 percent faster than the GT 650M. The very rare GDDR5 version even beats the GTX 660M. Most current games (as of 2013) can be played fluently in high settings. In older titles, there are also reserves for additional quality features like AA and AF. Detailed benchmarks can be found further down on this page.
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 750M should be somewhere between the GT 650M and GTX 660M (about 35 - 40 watts). As a result, the Nvidia GPU is best suited for notebooks 15 inches in size or greater.
NVIDIA GeForce GT 740M
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The NVIDIA GeForce GT 740M is a DirectX 11 graphics card of the middle class. It is based on the Kepler architecture and manufactured by TSMC in a 28-nanometer process. In addition to an older version with the GK107 chip (384 shader, 810 - 895 MHz, 128 bit memory), there also exist models with the new GK208 (384 shader, up to 980 MHz plus boost, 64 bit memory). Both versions usually use DDR3 memory; however, GDDR5 versions are possible, too.
Architecture
Both GK107 and GK208 are based on the Kepler architecture and offer two shader blocks, called SMX, each with 192 shaders for a total of 384 shader cores. The shaders are clocked at the same speed as the rest of the chip. Although more shader cores are available in the Kepler architecture as compared to the Fermi design, the Kepler shaders are much more efficient. However, due to the missing hot clock of the shader domain, two shaders of a Kepler chip are as fast as one shader of a Fermi chip even though Fermi shaders are clocked at twice the speed.
PCIe 3.0 is now supported by the mobile Kepler series and an optional Turbo mode can automatically overclock the card if the laptop cooling system allows it. This feature is available on any notebook with a graphics card of the 700M series.
Performance
The gaming performance of the GeForce GT 740M depends on the used chip. Our benchmarks with a GK107 version show a performance just 10 percent below the GT 650M. Current games (as of 2013) can thus be played in medium to high settings. In older titles, there are also reserves for additional quality features like AA and AF. The GK208 version, however, performs significantly worse and is sometimes even below the GT 640M. Still, the performance depends on the core clock and the GPU Boost 2.0. Detailed benchmarks can be found further down on this page.
Features
The feature set of the GT 740M corresponds to the GT 730M. This 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 740M should be similar to the GT 730M. As a result, the Nvidia GPU is best suited for multimedia notebooks 14-inches in size or greater.
NVIDIA GeForce GT 750M | NVIDIA GeForce GT 740M | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
GeForce GT 700M Series |
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Codename | N14P-GT | N14P-GV2, ... | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Architecture | Kepler | Kepler | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Pipelines | 384 - unified | 384 - unified | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Core Speed | 967 MHz | 810 - 980 (Boost) MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Memory Speed | 2000 - 5000 MHz | 1600 - 1800 MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Memory Bus Width | 128 Bit | 64/128 Bit | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Memory Type | DDR3, GDDR5 | DDR3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Max. Amount of Memory | 4 GB | 2048 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Shared Memory | no | no | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
API | DirectX 11, Shader 5.0 | DirectX 11, Shader 5.0, OpenGL 4.3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Power Consumption | 35-40 Watt | 25-32 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Transistors | 1.3 Billion | 1.3 Billion | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
technology | 28 nm | 28 nm | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Features | Optimus, GPU Boost 2.0, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV Play | Optimus, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV Play | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Notebook Size | medium sized | medium sized | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Date of Announcement | 01.04.2013 | 01.03.2013 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Link to Manufacturer Page | www.geforce.com |
Benchmarks
3DM Vant. Perf. total + NVIDIA GeForce GT 750M
specvp11 snx-01 + NVIDIA GeForce GT 740M
Cinebench R15 OpenGL 64 Bit + NVIDIA GeForce GT 750M
GFXBench T-Rex HD Offscreen C24Z16 + NVIDIA GeForce GT 740M
Average Benchmarks NVIDIA GeForce GT 750M → 100% n=17
Average Benchmarks NVIDIA GeForce GT 740M → 77% n=17

* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation
Game Benchmarks
The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailed information on the benchmark results, click on the fps number.

Overwatch
2016
Need for Speed 2016
2016
Hitman 2016
2016
The Division
2016
Far Cry Primal
2016
XCOM 2
2016
Rainbow Six Siege
2015
Just Cause 3
2015
Fallout 4
2015
Anno 2205
2015
FIFA 16
2015
Metal Gear Solid V
2015
Mad Max
2015
The Witcher 3
2015
Dirt Rally
2015
GTA V
2015
Battlefield Hardline
2015
Evolve
2015
The Crew
2014
Far Cry 4
2014
F1 2014
2014
The Evil Within
2014
Ryse: Son of Rome
2014
Alien: Isolation
2014
Fifa 15
2014
Sims 4
2014
Risen 3: Titan Lords
2014
GRID: Autosport
2014
Watch Dogs
2014
Titanfall
2014
Thief
2014
X-Plane 10.25
2013
Call of Duty: Ghosts
2013
Battlefield 4
2013
F1 2013
2013
Fifa 14
2013
Total War: Rome II
2013
Saints Row IV
2013
Company of Heroes 2
2013
Metro: Last Light
2013
BioShock Infinite
2013
SimCity
2013