NVIDIA GeForce GTX 680M SLI

NVIDIA GeForce GTX 680M SLI

The NVIDIA GeForce GTX 680M SLI is a high-end DirectX 11-compatible graphics card for laptops, consisting of two GeForce GTX 680M. Each card has a 28nm GK104 core based on the Kepler architecture. Compared to the desktop GeForce GTX 670, the GTX 680M also features 1344 CUDA cores, but the mobile counterpart operates at reduced core and memory clock speeds (720/1800MHz vs 915-980/3004MHz). The clocks for the SLI-setup are identical. 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 GK104 Kepler core offers eight shader blocks, called SMX, that are clocked at the same speed as the central core. Although more shader cores are available in the Kepler architecture as compared to the Fermi design, the Kepler shaders are still expected to 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 680M SLI is on the same level as the Radeon HD 7970M Crossfire, thus making both the fastest mobile solution as of summer 2012. In our Benchmarks, the 680M SLI is just marginal in front. The GPUs have enough power to run games of 2012 fluently with Full HD resolution, maxed out graphical settings and antialiasing. Even extremely demanding titles like Metro 2033, Alan Wake or Risen 2 are playable at the highest detail settings.

Features

The improved feature set now 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 GK104 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.

The power consumption of the GeForce GTX 680M SLI should double compared to a single GTX 680M. Therefore, only large desktop replacements can handle the heat.

ManufacturerNVIDIA
GeForce GTX 600M Series
GeForce GTX 680M SLI 2688 @ 720MHz256 Bit @ 3600MHz

GeForce GTX 680MX

1536 @ 720MHz256 Bit @ 5000MHz

GeForce GTX 675M SLI

768 @ 620MHz256 Bit @ 3000MHz

GeForce GTX 680M

1344 @ 720MHz256 Bit @ 3600MHz

GeForce GTX 670MX SLI

1920 @ 600MHz192 Bit @ 2800MHz

GeForce GTX 675MX

960 @ 600MHz256 Bit @ 3600MHz

GeForce GTX 675M

384 @ 620MHz256 Bit @ 3000MHz

GeForce GTX 670MX

960 @ 600MHz192 Bit @ 2800MHz

GeForce GTX 670M

336 @ 598MHz192 Bit @ 3000MHz

GeForce GTX 660M

384 @ 835MHz128 Bit @ 4000MHz
CodenameN13E-GTX
ArchitectureKepler
Pipelines2688 - unified
Core Speed *720 MHz
Shader Speed *720 MHz
Memory Speed *3600 MHz
Memory Bus Width256 Bit
Memory TypeGDDR5
Max. Amount of Memory4096 MB
Shared Memoryno
DirectXDirectX 11, Shader 5.0
technology28 nm
FeaturesOptimus, SLI, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV Play
Notebook Sizelarge
Date of Announcement04.06.2012
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

3DMark 11 - Performance 1280x720
0% 100%
min: 9922      avg: 10053.3 (78%)     median: 9946 (77%)     max: 10292 points
3DMark 11 - Performance GPU 1280x720
0% 100%
min: 10921      avg: 10952 (69%)     median: 10952 (69%)     max: 10983 points
3DMark Vantage - P Result no PhysX 1280x1024
0% 100%
min: 32063      avg: 33812.3 (92%)     median: 32635 (89%)     max: 36739 Points
3DMark Vantage - P GPU no PhysX 1280x1024
0% 100%
min: 35538      avg: 36213.5 (83%)     median: 36213.5 (83%)     max: 36889 Points
3DMark 06
0% 100%
min: 26530      avg: 26983.5 (91%)     median: 26983.5 (91%)     max: 27437 Points
3DMark 05 - Standard 1024x768
0% 100%
min: 32059      avg: 32434 (88%)     median: 32434 (88%)     max: 32809 Points
3DMark 03 - Standard 1024x768
0% 100%
min: 108274      avg: 108565 (72%)     median: 108565 (72%)     max: 108856 Points
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
0% 100%
min: 131.8      avg: 135.1 (82%)     median: 135.1 (82%)     max: 138.3 fps
PCMark Vantage - Gaming Score 1024x768
0% 100%
min: 22367      avg: 24259 (93%)     median: 24259 (93%)     max: 26151 Points
SPECviewperf 11 - Catia 1920x1080
0% 100%
min: 9.73      avg: 9.7 (14%)     median: 9.7 (14%)     max: 9.73 fps
SPECviewperf 11 - Ensight 1920x1080
0% 100%
min: 19.9      avg: 19.9 (33%)     median: 19.9 (33%)     max: 19.9 fps
SPECviewperf 11 - Lightwave 1920x1080
0% 100%
min: 14.01      avg: 14 (17%)     median: 14 (17%)     max: 14.01 fps
SPECviewperf 11 - Maya 1920x1080
0% 100%
min: 10.68      avg: 10.7 (10%)     median: 10.7 (10%)     max: 10.68 fps
SPECviewperf 11 - Pro/ENGINEER 1920x1080
0% 100%
min: 1.14      avg: 1.1 (6%)     median: 1.1 (6%)     max: 1.14 fps
SPECviewperf 11 - SolidWorks 1920x1080
0% 100%
min: 9.49      avg: 9.5 (15%)     median: 9.5 (15%)     max: 9.49 fps
SPECviewperf 11 - Tcvis 1920x1080
0% 100%
min: 0.83      avg: 0.8 (1%)     median: 0.8 (1%)     max: 0.83 fps
SPECviewperf 11 - Siemens NX 1920x1080
0% 100%
min: 2.11      avg: 2.1 (3%)     median: 2.1 (3%)     max: 2.11 fps
Cinebench R11.5 - OpenGL 64Bit
0% 100%
min: 48.98      avg: 51.4 (47%)     median: 52.5 (48%)     max: 52.59 Points
Windows 7 Experience Index - Graphics
0% 100%
min: 7.9      avg: 7.9 (100%)     median: 7.9 (100%)     max: 7.9 points
Windows 7 Experience Index - Gaming graphics
0% 100%
min: 7.9      avg: 7.9 (100%)     median: 7.9 (100%)     max: 7.9 points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

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.

AssassinĀ“s Creed III
med.:
81.2  fps      Compare
high:
78.6  fps      Compare
ultra:
47.6  fps      Compare
» With all tested laptops playable in detail settings ultra.
Hitman: Absolution
low:
85.8  fps      Compare
med.:
78.8  fps      Compare
high:
70.6  fps      Compare
ultra:
44.1  fps      Compare
» With all tested laptops playable in detail settings ultra.
Call of Duty: Black Ops 2
low:
230.8  fps      Compare
med.:
194.4  fps      Compare
high:
145.1  fps      Compare
ultra:
108.1  fps      Compare
» With all tested laptops playable in detail settings ultra.
Need for Speed: Most Wanted
low:
60  fps      Compare
med.:
60  fps      Compare
high:
58.6  fps      Compare
ultra:
47.7  fps      Compare
» With all tested laptops playable in detail settings ultra.
Medal of Honor: Warfighter
low:
194.1  fps      Compare
med.:
179.7  fps      Compare
high:
161.2  fps      Compare
ultra:
80.2  fps      Compare
» With all tested laptops playable in detail settings ultra.
Dishonored
Dishonored (2012)
low:
130  fps      Compare
med.:
130  fps      Compare
high:
129.9  fps      Compare
ultra:
130  fps      Compare
» With all tested laptops playable in detail settings ultra.
World of Tanks v8
low:
118  fps      Compare
med.:
92.7  fps      Compare
high:
82.6  fps      Compare
ultra:
59  fps      Compare
» With all tested laptops playable in detail settings ultra.
Fifa 13
Fifa 13 (2012)
low:
455.5  fps      Compare
med.:
419.9  fps      Compare
high:
403.2  fps      Compare
ultra:
374  fps      Compare
» With all tested laptops playable in detail settings ultra.
F1 2012
F1 2012 (2012)
low:
173  fps      Compare
med.:
141  fps      Compare
high:
134  fps      Compare
ultra:
109  fps      Compare
» With all tested laptops playable in detail settings ultra.
Borderlands 2
low:
160  fps      Compare
med.:
134.2  fps      Compare
high:
131.7  fps      Compare
ultra:
114.5  fps      Compare
» With all tested laptops playable in detail settings ultra.
Guild Wars 2
Guild Wars 2 (2012)
low:
94.7  fps      Compare
high:
52.5  fps      Compare
ultra:
51.9  fps      Compare
» With all tested laptops playable in detail settings ultra.
Counter-Strike: GO
med.:
249  fps      Compare
high:
238  fps      Compare
ultra:
228.5  fps      Compare
» With all tested laptops playable in detail settings ultra.
Darksiders II
med.:
123.8  fps      Compare
ultra:
102.2  fps      Compare
» With all tested laptops playable in detail settings ultra.
Sleeping Dogs
med.:
108.5  fps      Compare
high:
79.4  fps      Compare
ultra:
22.6  fps      Compare
» With all tested laptops playable in detail settings high.
The Secret World
med.:
73.9  fps      Compare
high:
62.9  fps      Compare
ultra:
31.1  fps      Compare
» With all tested laptops playable in detail settings high.
Ghost Recon: Future Soldier
med.:
62  fps      Compare
ultra:
41.3  fps      Compare
» With all tested laptops playable in detail settings ultra.
Max Payne 3
Max Payne 3 (2012)
med.:
85.4  fps      Compare
high:
78  fps      Compare
ultra:
69.9  fps      Compare
» With all tested laptops playable in detail settings ultra.
Dirt Showdown
med.:
85.3  fps      Compare
high:
88.8  fps      Compare
ultra:
50.9  fps      Compare
» With all tested laptops playable in detail settings ultra.
Diablo III
Diablo III (2012)
med.:
251.2  fps      Compare