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NVIDIA GeForce GTX 670MX

NVIDIA GeForce GTX 670MX

The NVIDIA GeForce GTX 670MX is a high-end DirectX 11.1-compatible graphics card for laptops. In difference to the similar called Fermi based GTX 670M, the 670MX uses a 28nm GK106 core based on the Kepler architecture (as the 675MX and 680M). Compared to the similar GTX 675MX, the 670MX offers a smaller memory bandwith of 67,2 versus 115,2 GB/s due to a reduced interface width of 192 Bit and slower clocked memory chips.

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 670MX, all 5 blocks are active leading to the 960 CUDA cores. 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 670MX should be above the older GTX 670M and therefore in the high end class of mobile graphics cards of 2012. Only the extremely demanding title The Witcher 2 may not run fluently in ultra settings. Battlefield 3, Skyrim, and Crysis 2, for example, 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 670MX should be similar to the GTX 670M and therefore best suited for large notebooks (17-inches or greater) and desktop replacements.

ManufacturerNVIDIA
GeForce GTX 600M Series

GeForce GTX 680M SLI 2688@720MHz

GeForce GTX 680MX 1536@720MHz

GeForce GTX 675M SLI 768@620MHz

GeForce GTX 670MX SLI 1920@600MHz

GeForce GTX 680M 1344@720MHz

GeForce GTX 675MX 960@600MHz

GeForce GTX 675M 384@620MHz

GeForce GTX 670MX 960@600MHz

GeForce GTX 670M 336@598MHz

GeForce GTX 660M 384@835MHz

ArchitectureKepler
Pipelines960 - unified
Core Speed *600 MHz
Shader Speed *600 MHz
Memory Speed *700 MHz
Memory Bus Width192 Bit
Memory TypeGDDR5
Shared Memoryno
DirectXDirectX 11, Shader 5.1
Transistors2540 Million
technology28 nm
FeaturesOptimus, SLI, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV Play
Notebook Sizelarge
Date of Announcement01.10.2012
Link to Manufacturer Pagehttp://www.geforce.com/hardware/notebook...
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

3DMark 11 - Performance 1280x720
0% 100%
min: 3768     avg: 3768 (36%)     max: 3768 points
3DMark 11 - Performance GPU 1280x720
0% 100%
min: 3567     avg: 3587 (32%)     max: 3607 points
...
Radeon HD 7770 -14%
Radeon HD 5850 -5%
GeForce GTX 670MX
GeForce GTX 560 Ti 12%
Radeon HD 6870 18%
GeForce GTX 480 40%
...
0%
100%
3DMark Vantage - P Result no PhysX 1280x1024
0% 100%
min: 14521     avg: 14922 (41%)     max: 15715 Points
3DMark Vantage - P GPU no PhysX 1280x1024
0% 100%
min: 12997     avg: 13008 (35%)     max: 13019 Points
3DMark 06
0% 100%
min: 19027     avg: 20667 (70%)     max: 22706 Points
3DMark 05 - Standard 1024x768
0% 100%
min: 26819     avg: 27040.5 (73%)     max: 27262 Points
3DMark 03 - Standard 1024x768
0% 100%
min: 46884     avg: 47429 (31%)     max: 47974 Points
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
0% 100%
min: 45.2     avg: 45.9 (30%)     max: 46.5 fps
SPECviewperf 11 - Catia 1920x1080
0% 100%
min: 6.23     avg: 6.2 (9%)     max: 6.23 fps
SPECviewperf 11 - Ensight 1920x1080
0% 100%
min: 14.32     avg: 14.3 (24%)     max: 14.32 fps
SPECviewperf 11 - Lightwave 1920x1080
0% 100%
min: 14.32     avg: 14.3 (18%)     max: 14.32 fps
SPECviewperf 11 - Maya 1920x1080
0% 100%
min: 9.84     avg: 9.8 (9%)     max: 9.84 fps
SPECviewperf 11 - Pro/ENGINEER 1920x1080
0% 100%
min: 1.16     avg: 1.2 (7%)     max: 1.16 fps
SPECviewperf 11 - SolidWorks 1920x1080
0% 100%
min: 8.39     avg: 8.4 (13%)     max: 8.39 fps
SPECviewperf 11 - Tcvis 1920x1080
0% 100%
min: 0.77     avg: 0.8 (1%)     max: 0.77 fps
SPECviewperf 11 - Siemens NX 1920x1080
0% 100%
min: 1.65     avg: 1.7 (3%)     max: 1.65 fps
Cinebench R11.5 - OpenGL 64Bit
0% 100%
min: 47     avg: 47 (53%)     max: 47 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.

Metro: Last Light
Metro: Last Light (2013)
low:
71.9  fps      Compare
med.:
57.6  fps      Compare
high:
34.3  fps      Compare
ultra:
18.3  fps      Compare
» With all tested laptops playable in detail settings med..
BioShock Infinite
low:
158.1  fps      Compare
med.:
91.8  fps      Compare
high:
78.3  fps      Compare
ultra:
27.9  fps      Compare
» With all tested laptops playable in detail settings high.
StarCraft II: Heart of the Swarm
low:
238.2  fps      Compare
med.:
102.1  fps      Compare
high:
84.6  fps      Compare
ultra:
34.5  fps      Compare
» With all tested laptops playable in detail settings high.
SimCity
SimCity (2013)
low:
77.6  fps      Compare
med.:
40.9  fps      Compare
high:
34.5  fps      Compare
ultra:
21.7  fps      Compare
» With all tested laptops playable in detail settings med..
Tomb Raider
Tomb Raider (2013)
low:
201.1  fps      Compare
med.:
104.9  fps      Compare
high:
66.5  fps      Compare
ultra:
28  fps      Compare
» With all tested laptops playable in detail settings high.
Crysis 3
Crysis 3 (2013)
low:
84.9  fps      Compare
med.:
50.7  fps      Compare
high:
35  fps      Compare
ultra:
13.8  fps      Compare
» With all tested laptops playable in detail settings med..
Dead Space 3
Dead Space 3 (2013)
low:
291.4  fps      Compare
med.:
143.9  fps      Compare
high:
109.7  fps      Compare
ultra:
66  fps      Compare
» With all tested laptops playable in detail settings ultra.
Far Cry 3
Far Cry 3 (2012)
low:
110.7  fps      Compare
med.:
82.2  fps      Compare
high:
43.3 44.2 ~ 44 fps      Compare
ultra:
13.2 13.7 ~ 13 fps      Compare
» With all tested laptops playable in detail settings high.
Assassin´s Creed III
med.:
57.3  fps      Compare
high:
54.7 58 ~ 56 fps      Compare
ultra:
21.2 21.6 ~ 21 fps      Compare
» With all tested laptops playable in detail settings high.
Hitman: Absolution
low:
69.2  fps      Compare
med.:
59.4  fps      Compare
high:
30.3 30.9 ~ 31 fps      Compare
ultra:
12.6 12.7 ~ 13 fps      Compare