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NVIDIA GeForce GTX 675MX

NVIDIA GeForce GTX 675MX

The NVIDIA GeForce GTX 675MX is a high-end DirectX 11.1-compatible graphics card for laptops and was announced in Oct. 2012. In difference to the Fermi based Geforce GTX 675M, the 675MX is based on the 28nm GK104 Kepler core and therefore related to the GTX 680M.

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 675MX, 5 blocks are active leading to the 1344 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 675MX is significantly higher than the old Fermi based GTX 675M and therefore similar fast as the Geforce GTX 560M SLI combination. Even demanding games of 2012 run fluently in highest detail settings, except for titles like Sleeping Dogs or Guild Wars 2.

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 675M should be slightly below the GTX 680M but still only 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 *900 MHz
Memory Bus Width256 Bit
Memory TypeGDDR5
Shared Memoryno
DirectXDirectX 11, Shader 5.0
Transistors3540 Million
technology28 nm
FeaturesOptimus, 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: 4255     avg: 4265.5 (41%)     max: 4276 points
3DMark 11 - Performance GPU 1280x720
0% 100%
min: 3959     avg: 3978.5 (36%)     max: 3998 points
...
Radeon HD 5850 -15%
GeForce GTX 675MX
GeForce GTX 560 Ti 1%
Radeon HD 6870 6%
GeForce GTX 480 26%
GeForce GTX 570 27%
...
0%
100%
3DMark Vantage - P Result no PhysX 1280x1024
0% 100%
min: 17940     avg: 18949.5 (52%)     max: 19959 Points
3DMark Vantage - P GPU no PhysX 1280x1024
0% 100%
min: 16366     avg: 16462 (45%)     max: 16558 Points
3DMark 06
0% 100%
min: 22970     avg: 23190 (79%)     max: 23410 Points
3DMark 05 - Standard 1024x768
0% 100%
min: 29194     avg: 29194 (79%)     max: 29194 Points
3DMark 03 - Standard 1024x768
0% 100%
min: 57389     avg: 57389 (38%)     max: 57389 Points
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
0% 100%
min: 54.2     avg: 54.2 (36%)     max: 54.2 fps
PCMark Vantage - Gaming Score 1024x768
0% 100%
min: 20311     avg: 20311 (78%)     max: 20311 Points
SPECviewperf 11 - Catia 1920x1080
0% 100%
min: 7.01     avg: 7 (10%)     max: 7.01 fps
SPECviewperf 11 - Ensight 1920x1080
0% 100%
min: 15.71     avg: 15.7 (27%)     max: 15.71 fps
SPECviewperf 11 - Lightwave 1920x1080
0% 100%
min: 17.09     avg: 17.1 (21%)     max: 17.09 fps
SPECviewperf 11 - Maya 1920x1080
0% 100%
min: 13.51     avg: 13.5 (12%)     max: 13.51 fps
SPECviewperf 11 - Pro/ENGINEER 1920x1080
0% 100%
min: 1.36     avg: 1.4 (8%)     max: 1.36 fps
SPECviewperf 11 - SolidWorks 1920x1080
0% 100%
min: 9.93     avg: 9.9 (15%)     max: 9.93 fps
SPECviewperf 11 - Tcvis 1920x1080
0% 100%
min: 0.91     avg: 0.9 (2%)     max: 0.91 fps
SPECviewperf 11 - Siemens NX 1920x1080
0% 100%
min: 1.79     avg: 1.8 (3%)     max: 1.79 fps
Cinebench R11.5 - OpenGL 64Bit
0% 100%
min: 47.31     avg: 47.3 (54%)     max: 47.31 Points
Windows 7 Experience Index - Graphics
0% 100%
min: 6.9     avg: 6.9 (87%)     max: 6.9 points
Windows 7 Experience Index - Gaming graphics
0% 100%
min: 6.9     avg: 6.9 (87%)     max: 6.9 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.

Metro: Last Light
Metro: Last Light (2013)
low:
87.6  fps      Compare
med.:
72.5  fps      Compare
high:
41.9  fps      Compare
ultra:
22.7  fps      Compare
» With all tested laptops playable in detail settings high.
BioShock Infinite
low:
177.2  fps      Compare
med.:
111.9  fps      Compare
high:
98.6  fps      Compare
ultra:
36.2  fps      Compare
» With all tested laptops playable in detail settings ultra.
StarCraft II: Heart of the Swarm
low:
260.3  fps      Compare
med.:
113.7  fps      Compare
high:
100.8  fps      Compare
ultra:
44  fps      Compare
» With all tested laptops playable in detail settings ultra.
SimCity
SimCity (2013)
low:
71.5  fps      Compare
med.:
47  fps      Compare
high:
39  fps      Compare
ultra:
24.9  fps      Compare
» With all tested laptops playable in detail settings high.
Tomb Raider
Tomb Raider (2013)
low:
212.5  fps      Compare
med.:
117.2  fps      Compare
high:
76.9  fps      Compare
ultra:
23.4  fps      Compare
» With all tested laptops playable in detail settings high.
Crysis 3
Crysis 3 (2013)
low:
84.8  fps      Compare
med.:
59.1  fps      Compare
high:
40.9  fps      Compare
ultra:
16.3  fps      Compare
» With all tested laptops playable in detail settings high.
Dead Space 3
Dead Space 3 (2013)
low:
258.7  fps      Compare
med.:
171.6  fps      Compare
high:
132.1  fps      Compare
ultra:
79.9  fps      Compare
» With all tested laptops playable in detail settings ultra.
Far Cry 3
Far Cry 3 (2012)
low:
76.3  fps      Compare
med.:
69.3  fps      Compare
high:
55.1  fps      Compare
ultra:
17.5  fps      Compare
» With all tested laptops playable in detail settings high.
Assassin´s Creed III
med.:
66.8  fps      Compare
high:
64  fps      Compare
ultra:
27.8  fps      Compare
» With all tested laptops playable in detail settings high.
Hitman: Absolution
low:
72  fps      Compare
med.:
66.4  fps      Compare
high:
41.4  fps      Compare
ultra:
19.3  fps      Compare
» With all tested laptops playable in detail settings high.
Call of Duty: Black Ops 2
low:
186.6  fps      Compare
med.:
151.1  fps      Compare