NVIDIA GeForce GTX 680M SLI vs NVIDIA GeForce GTX 680MX

NVIDIA GeForce GTX 680M SLI

► remove 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.

NVIDIA GeForce GTX 680MX

► remove NVIDIA GeForce GTX 680MX

The NVIDIA GeForce GTX 680MX is a high-end DirectX 11-compatible graphics card commonly found on Apple iMac products. It is based on the 28nm GK104 Kepler architecture similar to the GTX 680M, but features more CUDA cores (1536 vs. 1344) and a higher memory clock rate (720/2500MHz vs. 720/1800MHz)

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. In the GTX 680MX, all eight blocks are active for a total of 1536 CUDA cores. 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

Thanks to the additional shader cores and the faster memory, the graphics performance of the GeForce GTX 680MX should be 15 - 25 percent above the GTX 680M and similar to the Desktop GTX 580. The GPU has enough power to run demanding games of 2012 fluently with Full HD resolution and maxed out graphical settings. Battlefield 3, Skyrim, and Crysis 2, for example, are playable at the highest detail settings.

As an example, the GTX 680MX can play Battlefield 3 on ultra settings at 30 FPS on a native resolution of 2560x1440 during our benchmark sequence. For fluent multiplayer gameplay, the resolution and/or anti-aliasing should be reduced (e.g. 1920x1080 Ultra at 45 fps).

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 680MX should be somewhat higher than the GTX 680M, making it difficult to cool for laptops. The Apple iMac is currently the most readily available product to utilize this high-end card.

NVIDIA GeForce GTX 680M SLINVIDIA GeForce GTX 680MX
ManufacturerNVIDIANVIDIA
GeForce GTX 600M Series
GeForce GTX 680M SLI 2688 @ 720 MHz2x 256 Bit @ 3600 MHz
GeForce GTX 680MX 1536 @ 720 MHz256 Bit @ 5000 MHz
GeForce GTX 675M SLI (compare) 768 @ 620 MHz256 Bit @ 3000 MHz
GeForce GTX 680M (compare) 1344 @ 720 MHz256 Bit @ 3600 MHz
GeForce GTX 670MX SLI (compare) 1920 @ 600 MHz2x 192 Bit @ 2800 MHz
GeForce GTX 675MX (compare) 960 @ 600 MHz256 Bit @ 3600 MHz
GeForce GTX 675M (compare) 384 @ 620 MHz256 Bit @ 3000 MHz
GeForce GTX 670MX (compare) 960 @ 600 MHz192 Bit @ 2800 MHz
GeForce GTX 670M (compare) 336 @ 598 MHz192 Bit @ 3000 MHz
GeForce GTX 660M (compare) 384 @ 835 MHz128 Bit @ 4000 MHz
GeForce GTX 680M SLI 2688 @ 720 MHz2x 256 Bit @ 3600 MHz
GeForce GTX 680MX 1536 @ 720 MHz256 Bit @ 5000 MHz
GeForce GTX 675M SLI (compare) 768 @ 620 MHz256 Bit @ 3000 MHz
GeForce GTX 680M (compare) 1344 @ 720 MHz256 Bit @ 3600 MHz
GeForce GTX 670MX SLI (compare) 1920 @ 600 MHz2x 192 Bit @ 2800 MHz
GeForce GTX 675MX (compare) 960 @ 600 MHz256 Bit @ 3600 MHz
GeForce GTX 675M (compare) 384 @ 620 MHz256 Bit @ 3000 MHz
GeForce GTX 670MX (compare) 960 @ 600 MHz192 Bit @ 2800 MHz
GeForce GTX 670M (compare) 336 @ 598 MHz192 Bit @ 3000 MHz
GeForce GTX 660M (compare) 384 @ 835 MHz128 Bit @ 4000 MHz
CodenameN13E-GTX
ArchitectureKeplerKepler
2688 - 1536 -
Core720 MHz720 MHz
Memory3600 MHz5000 MHz
Bus2x 256 Bit256 Bit
MemoryGDDR5GDDR5
Max. Memory2x 4096 MB2048 MB
nono
DirectXDirectX 11, 5.0DirectX 11, 5.0
Technology28 nm28 nm
FeaturesOptimus, SLI, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV PlayOptimus, SLI, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV Play
Size
Introduced04.06.2012 23.10.2012
Transistors3540 Million
Manufacturerhttp://www.geforce.com/hardware/notebook...

3DMark 11 - Performance 1280x720
min: 9922     avg: 10053     median: 9946 (28%)     max: 10292 points
6883 points (20%)
3DMark 11 - Performance GPU 1280x720
min: 10921     avg: 10952     median: 10952 (21%)     max: 10983 points
6736 points (13%)
3DMark Vantage
P Result 1280x1024 + NVIDIA GeForce GTX 680M SLI
P Result 1280x1024 + NVIDIA GeForce GTX 680MX
P GPU no PhysX 1280x1024 + NVIDIA GeForce GTX 680M SLI
P GPU no PhysX 1280x1024 + NVIDIA GeForce GTX 680MX
3DMark 03 - Standard 1024x768
min: 108274     avg: 108565     median: 108565 (57%)     max: 108856 Points
3DMark 05 - Standard 1024x768
min: 32059     avg: 32434     median: 32434 (61%)     max: 32809 Points
3DMark 06 Standard 1280x1024 + NVIDIA GeForce GTX 680M SLI
Unigine Heaven 3.0 - DX 11, Normal Tessellation, High Shaders 1920x1080
108 fps (40%)
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
min: 131.8     avg: 135     median: 135.1 (57%)     max: 138.3 fps
SPECviewperf 11
Siemens NX 1920x1080 + NVIDIA GeForce GTX 680M SLI
Tcvis 1920x1080 + NVIDIA GeForce GTX 680M SLI
SolidWorks 1920x1080 + NVIDIA GeForce GTX 680M SLI
Pro/ENGINEER 1920x1080 + NVIDIA GeForce GTX 680M SLI
Maya 1920x1080 + NVIDIA GeForce GTX 680M SLI
Lightwave 1920x1080 + NVIDIA GeForce GTX 680M SLI
Ensight 1920x1080 + NVIDIA GeForce GTX 680M SLI
Catia 1920x1080 + NVIDIA GeForce GTX 680M SLI
Windows 7 Experience Index - Gaming graphics
7.9 points (100%)
Windows 7 Experience Index - Graphics
7.9 points (100%)
Cinebench R11.5 OpenGL 64Bit + NVIDIA GeForce GTX 680M SLI

Average Benchmarks NVIDIA GeForce GTX 680M SLI → 100%

Average Benchmarks NVIDIA GeForce GTX 680MX → 70%

-
-
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

low 1024x768
GeForce GTX 680MX:
72  fps
med. 1366x768
GeForce GTX 680MX:
43.6  fps
high 1920x1080
GeForce GTX 680MX:
26.4  fps
ultra 1920x1080
GeForce GTX 680MX:
14.2  fps
GeForce GTX 680MX:
»
ultra 1920x1080
GeForce GTX 680MX:
133  fps
GeForce GTX 680MX:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
81.2  fps
high 1366x768
100%
GeForce GTX 680M SLI:
78.6  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
47.6  fps
GeForce GTX 680M SLI:
»
low 1024x768
100%
GeForce GTX 680M SLI:
85.8  fps
med. 1366x768
100%
GeForce GTX 680M SLI:
78.8  fps
high 1366x768
100%
GeForce GTX 680M SLI:
70.6  fps
78%
GeForce GTX 680MX:
55.4  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
44.1  fps
78%
GeForce GTX 680MX:
34.4  fps
GeForce GTX 680M SLI:
»
GeForce GTX 680MX:
»
low 1024x768
100%
GeForce GTX 680M SLI:
230.8  fps
med. 1366x768
100%
GeForce GTX 680M SLI:
194.4  fps
high 1366x768
100%
GeForce GTX 680M SLI:
145.1  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
108.1  fps
GeForce GTX 680M SLI:
»
low 1024x768
100%
GeForce GTX 680M SLI:
60  fps
med. 1366x768
100%
GeForce GTX 680M SLI:
60  fps
high 1366x768
100%
GeForce GTX 680M SLI:
58.6  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
47.7  fps
GeForce GTX 680M SLI:
»
low 1024x768
100%
GeForce GTX 680M SLI:
194.1  fps
med. 1366x768
100%
GeForce GTX 680M SLI:
179.7  fps
high 1366x768
100%
GeForce GTX 680M SLI:
161.2  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
80.2  fps
GeForce GTX 680M SLI:
»
low 1024x768
100%
GeForce GTX 680M SLI:
130  fps
med. 1366x768
100%
GeForce GTX 680M SLI:
130  fps
high 1366x768
100%
GeForce GTX 680M SLI:
129.9  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
130  fps
GeForce GTX 680M SLI:
»
low 1024x768
100%
GeForce GTX 680M SLI:
118  fps
med. 1366x768
100%
GeForce GTX 680M SLI:
92.7  fps
high 1366x768
100%
GeForce GTX 680M SLI:
82.6  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
59  fps
GeForce GTX 680M SLI:
»
Fifa 13

Fifa 13

2012
low 1024x768
100%
GeForce GTX 680M SLI:
455.5  fps
med. 1366x768
100%
GeForce GTX 680M SLI:
419.9  fps
high 1366x768
100%
GeForce GTX 680M SLI:
403.2  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
374  fps
GeForce GTX 680M SLI:
»
F1 2012

F1 2012

2012
low 1024x768
100%
GeForce GTX 680M SLI:
173  fps
med. 1366x768
100%
GeForce GTX 680M SLI:
141  fps
high 1366x768
100%
GeForce GTX 680M SLI:
134  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
109  fps
89%
GeForce GTX 680MX:
97.5  fps
GeForce GTX 680M SLI:
»
GeForce GTX 680MX:
»
low 1024x768
100%
GeForce GTX 680M SLI:
160  fps
med. 1366x768
100%
GeForce GTX 680M SLI:
134.2  fps
high 1366x768
100%
GeForce GTX 680M SLI:
131.7  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
114.5  fps
GeForce GTX 680M SLI:
»
low 1024x768
100%
GeForce GTX 680M SLI:
94.7  fps
high 1366x768
100%
GeForce GTX 680M SLI:
52.5  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
51.9  fps
GeForce GTX 680M SLI:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
249  fps
high 1366x768
100%
GeForce GTX 680M SLI:
238  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
228.5  fps
GeForce GTX 680M SLI:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
123.8  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
102.2  fps
GeForce GTX 680M SLI:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
108.5  fps
high 1366x768
100%
GeForce GTX 680M SLI:
79.4  fps
125%
GeForce GTX 680MX:
99  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
22.6  fps
138%
GeForce GTX 680MX:
31.1  fps
GeForce GTX 680M SLI:
»
GeForce GTX 680MX:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
73.9  fps
high 1366x768
100%
GeForce GTX 680M SLI:
62.9  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
31.1  fps
GeForce GTX 680M SLI:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
62  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
41.3  fps
GeForce GTX 680M SLI:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
85.4  fps
high 1366x768
100%
GeForce GTX 680M SLI:
78  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
69.9  fps
GeForce GTX 680M SLI:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
85.3  fps
high 1366x768
100%
GeForce GTX 680M SLI:
88.8  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
50.9  fps
GeForce GTX 680M SLI:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
251.2  fps
high 1366x768
100%
GeForce GTX 680M SLI:
284.8  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
226  fps
GeForce GTX 680M SLI:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
101.7  fps
high 1366x768
100%
GeForce GTX 680M SLI:
80.6  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
70.4  fps
GeForce GTX 680M SLI:
»
high 1366x768
100%
GeForce GTX 680M SLI:
60  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
60  fps
GeForce GTX 680M SLI:
»
Alan Wake

Alan Wake

2012
med. 1366x768
100%
GeForce GTX 680M SLI:
106.6  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
73.9  fps
GeForce GTX 680M SLI:
»
Anno 2070

Anno 2070

2011
med. 1366x768
100%
GeForce GTX 680M SLI:
233  fps
high 1366x768
100%
GeForce GTX 680M SLI:
157.3  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
91.1  fps
GeForce GTX 680M SLI:
»
high 1366x768
100%
GeForce GTX 680M SLI:
127.7  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
87.2  fps
GeForce GTX 680M SLI:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
165.8  fps
high 1366x768
100%
GeForce GTX 680M SLI:
169  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
158.8  fps
GeForce GTX 680M SLI:
»
low 1024x768
GeForce GTX 680MX:
126  fps
med. 1366x768
100%
GeForce GTX 680M SLI:
115.2  fps
90%
GeForce GTX 680MX:
104  fps
high 1366x768
100%
GeForce GTX 680M SLI:
103.3  fps
89%
GeForce GTX 680MX:
92  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
65.6  fps
70%
GeForce GTX 680MX:
45.6  fps
GeForce GTX 680M SLI:
»
GeForce GTX 680MX:
»
med. 1366x768
100%
GeForce GTX 680M SLI:
166  fps
high 1366x768
100%
GeForce GTX 680M SLI:
142  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
105  fps
GeForce GTX 680M SLI:
»
Fifa 12

Fifa 12

2011
med. 1024x768
100%
GeForce GTX 680M SLI:
120.1  fps
high 1360x768
100%
GeForce GTX 680M SLI:
120.1  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
120  fps
GeForce GTX 680M SLI:
»
F1 2011

F1 2011

2011
med. 1024x768
100%
GeForce GTX 680M SLI:
80  fps
high 1366x768
100%
GeForce GTX 680M SLI:
104  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
86  fps
GeForce GTX 680M SLI:
»
high 1366x768
100%
GeForce GTX 680M SLI:
283.4  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
136.9  fps
GeForce GTX 680M SLI:
»
Crysis 2

Crysis 2

2011
med. 1024x768
100%
GeForce GTX 680M SLI:
100.2  fps
high 1366x768
100%
GeForce GTX 680M SLI:
100.1  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
92.5  fps
GeForce GTX 680M SLI:
»
med. 1360x768
100%
GeForce GTX 680M SLI:
102.7  fps
high 1360x768
100%
GeForce GTX 680M SLI:
95.4  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
99.5  fps
GeForce GTX 680M SLI:
»
med. 1360x768
100%
GeForce GTX 680M SLI:
159.7  fps
high 1600x900
100%
GeForce GTX 680M SLI:
132.5  fps
ultra 1920x1080
100%
GeForce GTX 680M SLI:
46.5  fps
GeForce GTX 680M SLI:
»

Average Gaming NVIDIA GeForce GTX 680M SLI → 100%

Average Gaming NVIDIA GeForce GTX 680MX → 95%

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Redaktion, 2017-09- 8 (Update: 2017-09-11)