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NVIDIA GeForce GTX 765M SLI

NVIDIA GeForce GTX 765M SLI

The NVIDIA GeForce GTX 765M SLI is a high-end DirectX 11-compatible graphics solution for laptops, consisting of two GeForce GTX 765M. Each card has a 28nm GK106 core based on the Kepler architecture. The clocks for the SLI-setup are identical to a single GTX 765M. With SLI, each card usually renders a single frame (AFR mode). Therefore, it may suffer from micro stuttering in low fps ranges below 30fps. This happens because of irregular delays between two 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 765M, only four blocks are activated (= 768 CUDA-Cores for each 765M). 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 an optional Turbo mode can automatically overclock the Nvidia card by a theoretical 15 percent if the laptop cooling system allows it. The implementation of this boost mode is done in the BIOS, but it is ultimately dependent upon the manufacturer of the laptop.

Performance

The graphics performance of the GeForce GTX 765M SLI is about 70 - 80 percent above a single GTX 765M, making it as fast as a single GeForce GTX 680M. 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 765M SLI should double that of a single 765M at about 120 - 130 W including the boards and memory. Therefore, the dual cards are well-suited for large desktop replacements.

ManufacturerNVIDIA
GeForce GTX 700M Series
GeForce GTX 780M SLI (compare) 3072 @ 823 MHz2x 256 Bit @ 5000 MHz
GeForce GTX 770M SLI (compare) 1920 @ 811 MHz2x 192 Bit @ 4000 MHz
GeForce GTX 780M (compare) 1536 @ 823 MHz256 Bit @ 5000 MHz
GeForce GTX 765M SLI 1536 @ 850 MHz2x 128 Bit @ 4000 MHz
GeForce GTX 775M (compare) 1344 @ 719 MHz256 Bit @ 3600 MHz
GeForce GTX 770M (compare) 960 @ 811 MHz192 Bit @ 4000 MHz
GeForce GTX 765M (compare) 768 @ 850 MHz128 Bit @ 4000 MHz
GeForce GTX 760M (compare) 768 @ 657 MHz128 Bit @ 4000 MHz
ArchitectureKepler
Pipelines1536 - unified
Core Speed850 MHz
Memory Speed4000 MHz
Memory Bus Width2x 128 Bit
Memory TypeGDDR5
Max. Amount of Memory2x 2048 MB
Shared Memoryno
DirectXDirectX 11, Shader 5.0
Transistor Count2x 2540 Million
technology28 nm
FeaturesOptimus, SLI, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV Play
Notebook Sizelarge
Date of Announcement30.05.2013

Benchmarks

3DMark - Cloud Gate Standard Score 1280x720
min: 17729     avg: 18129.5     median: 18129.5 (37%)     max: 18530 Points
+ 2 benchmarks and specifications   + Show comparison chart
3DMark - Cloud Gate Standard Graphics 1280x720
min: 34968     avg: 35375.5     median: 35375.5 (19%)     max: 35783 Points
+ 2 benchmarks and specifications   + Show comparison chart
3DMark - Fire Strike Score 1920x1080
min: 4158     avg: 4316.5     median: 4316.5 (16%)     max: 4475 Points
+ 2 benchmarks and specifications   + Show comparison chart
3DMark - Fire Strike Graphics 1920x1080
min: 4795     avg: 5073     median: 5073 (12%)     max: 5351 Points
+ 2 benchmarks and specifications   + Show comparison chart
3DMark - Ice Storm Standard Graphics 1280x720
min: 253110     avg: 261786     median: 261786 (35%)     max: 270461 Points
+ 2 benchmarks and specifications   + Show comparison chart
3DMark 11 - Performance 1280x720
min: 7349     avg: 7352     median: 7352 (24%)     max: 7355 points
+ 2 benchmarks and specifications   + Show comparison chart
3DMark 11 - Performance GPU 1280x720
min: 7897     avg: 7944     median: 7944 (16%)     max: 7991 points
+ 2 benchmarks and specifications   - Hide comparison chart
3DMark Vantage
P Result 1280x1024 +
P GPU no PhysX 1280x1024 +
3DMark 06 Standard 1280x1024 +
Unigine Heaven 3.0 - DX 11, Normal Tessellation, High Shaders 1920x1080
min: 66.7     avg: 68.2     median: 68.2 (25%)     max: 69.6 fps
+ 2 benchmarks and specifications   + Show comparison chart
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
min: 95.3     avg: 95.8     median: 95.8 (43%)     max: 96.3 fps
+ 2 benchmarks and specifications   + Show comparison chart
SPECviewperf 11
Siemens NX 1920x1080 +
Tcvis 1920x1080 +
SolidWorks 1920x1080 +
Pro/ENGINEER 1920x1080 +
Maya 1920x1080 +
Lightwave 1920x1080 +
Ensight 1920x1080 +
Catia 1920x1080 +
Cinebench R11.5 OpenGL 64Bit +
Cinebench R15
OpenGL 64Bit +
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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 detailled information on the benchmark results, click on the fps number.

X-Plane 10.25

X-Plane 10.25

2013
low 1024x768
103.4  fps    + Compare
med. 1366x768
49.4  fps    + Compare
high 1366x768
26.4  fps    + Compare
ultra 1920x1080
14.5  fps    + Compare
» With all tested laptops playable in detail settings med..
Call of Duty: Ghosts

Call of Duty: Ghosts

2013
low 1024x768
91.4  fps    + Compare
med. 1366x768
83.3  fps    + Compare
high 1366x768
65  fps    + Compare
ultra 1920x1080
40.7  fps    + Compare
» With all tested laptops playable in detail settings ultra.
Battlefield 4

Battlefield 4

2013
low 1024x768
181.1  fps    + Compare
med. 1366x768
136.9  fps    + Compare
high 1366x768
101.9  fps    + Compare
ultra 1920x1080
40.3  fps    + Compare
» With all tested laptops playable in detail settings ultra.
F1 2013

F1 2013

2013
low 1024x768
119  fps    + Compare
med. 1366x768
115  fps    + Compare
high 1366x768
111  fps    + Compare
ultra 1920x1080
96  fps    + Compare
» With all tested laptops playable in detail settings ultra.
Saints Row IV

Saints Row IV

2013
low 1280x720
83.7  fps    + Compare
med. 1366x768
72.6  fps    + Compare
high 1366x768
62.8  fps    + Compare
ultra 1920x1080
48.8  fps    + Compare
» With all tested laptops playable in detail settings ultra.
Dota 2

Dota 2

2013
low 1024x768
119.2  fps    + Compare
med. 1366x768
115.6  fps    + Compare
ultra 1920x1080
102  fps    + Compare
» With all tested laptops playable in detail settings ultra.
Company of Heroes 2

Company of Heroes 2

2013
low 1024x768
50.2  fps    + Compare