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NVIDIA GeForce GTX 770M SLI

NVIDIA GeForce GTX 770M SLI

The NVIDIA GeForce GTX 770M SLI is a high-end DirectX 11-compatible graphics solution for laptops, consisting of two GeForce GTX 770M. Each card has a 28nm GK106 core based on the Kepler architecture. The clocks for the SLI-setup are identical to a single GTX 770M. With SLI, each card usually renders a single frame (AFR mode). Therefore, it may suffer from micro stuttering in low fps ranges of 30fps. This happens because of different timespans between two frames (e.g., irregular delays between sequential frames).

Architecture

The Kepler architecture is the successor to the Fermi architecture that first appeared in laptops with the GeForce 400M series. The GK106 Kepler core offers five shader blocks, called SMX, that are clocked at the same speed as the central core. In the GTX 770M, all five blocks are activated (= 960 CUDA-Cores for each 770M). Although the Kepler architecture can utilize more shader cores than a Fermi chip, its shaders can be up to twice as power efficient. However, due to the missing hot clock of the shader domain, two shaders of a Kepler chip are of similar speed to one shader of a Fermi chip (as the latter is clocked twice as fast).

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

The GeForce GTX 770M SLI is about 70 - 80 percent faster than a single GTX 770M, leading to a performance somewhere between a single GeForce GTX 680 (desktop) and GTX 780M. Therefore, most games (as of 2013) are playable at the highest detail setting and in FullHD resolution. In many cases it is even possible to activate additional anti-aliasing.

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) is also integrated in the GK106 core and 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 novelty is the inclusion of a dedicated video encoding engine similar to Intel QuickSync that can be accessed by the NVENC API.

Power consumption

The power consumption of the GeForce GTX 770M SLI should double to about 150 watts (including board and memory) compared to a single GTX 770M. Therefore, only large desktop replacements can handle the heat.

ManufacturerNVIDIA
GeForce GTX 700M Series

GeForce GTX 780M SLI

3072 @ 823 MHz2x 256 Bit @ 5000 MHz
GeForce GTX 770M SLI 1920 @ 811 MHz2x 192 Bit @ 4000 MHz

GeForce GTX 780M

1536 @ 823 MHz256 Bit @ 5000 MHz

GeForce GTX 765M SLI

1536 @ 850 MHz2x 128 Bit @ 4000 MHz

GeForce GTX 775M

1344 @ 719 MHz256 Bit @ 3600 MHz

GeForce GTX 770M

960 @ 811 MHz192 Bit @ 4000 MHz

GeForce GTX 765M

768 @ 850 MHz128 Bit @ 4000 MHz

GeForce GTX 760M

768 @ 657 MHz128 Bit @ 4000 MHz
ArchitectureKepler
Pipelines1920 - unified
Core Speed *811 MHz
Memory Speed *4000 MHz
Memory Bus Width2x 192 Bit
Memory TypeGDDR5
Max. Amount of Memory2x 3072 MB
Shared Memoryno
DirectXDirectX 11, Shader 5.0
Power Consumption150 Watt
Transistors2x 2540 Million
technology28 nm
FeaturesOptimus, SLI, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV Play
Notebook Sizelarge
Date of Announcement30.05.2013
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

3DMark 11 - Performance GPU 1280x720
0% 100%
min: 9569      avg: 9569 (42%)     median: 9569 (42%)     max: 9569 points
3DMark 11 - Performance 1280x720
0% 100%
min: 8679      avg: 8679 (48%)     median: 8679 (48%)     max: 8679 points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

For more games that might be playable and a list of all games and graphics cards visit our Gaming List

#0 Did not recreate cache, as it is less than 5 days old +0.001s ... 0.001s

#1 min, max, avg, median took 2.288818359375E-5s +0.163s ... 0.165s

#2 Before gaming benchmark output +0s ... 0.165s

#3 return log +0.004s ... 0.169s

No reviews found for this graphics card.

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Class 1
GeForce GTX 590
GeForce GTX 580
Radeon HD 6970
GeForce GTX 570
GeForce GTX 560 Ti
Radeon HD 5850
Radeon HD 7770
Radeon HD 7770
GeForce GTX 460 768MB
Radeon HD 6790
Radeon HD 5770
GeForce GTX 550 Ti
Class 2
GeForce GTS 450
Radeon HD 4850
Class 3
Radeon HD 5670
GeForce GT 240
Radeon R6 M255DX
GeForce GT 430
Radeon HD 5570
GeForce GT 220
Radeon HD 6450 GDDR5
Class 4
Radeon R3 (Mullins/Beema)
Mali-T760 MP6
Class 5
Radeon HD 4350
GeForce G 107M *
Chrome9HD *
Class 6
Mali-T760 MP2
unknown *

* Approximate position of the graphics adapter

> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Comparison of Laptop Graphics Cards > NVIDIA GeForce GTX 770M SLI
Author: Klaus Hinum (Update: 2013-10-12)