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NVIDIA GeForce GTX 675M

NVIDIA GeForce GTX 675M

The NVIDIA GeForce GTX 675M is a the fastest single-GPU laptop graphics card as of March 2012. It is based on the GF114 Fermi core and is essentially a renamed version of th GeForce GTX 580M but with higher core clock rates. Therefore, it is still manufactured in 40nm at TSMC.

GF114 architecture

The GF114 core is a power-optimized version of the GF104 used in the GTX 470M, but with no major architectural changes. Therefore, the performance per MHz of the GF114 stays the same even though Nvidia was able to clock the shaders higher while still remaining in the same power scale. The GTX 675M offers 384 cores at a clock speed of 620 MHz. More informations on the similar GF104 architecture can be found on the GeForce GTX 485M page.

Performance

Due to similar clock speeds, the GeForce GTX 675M is as fast as the old GTX 580M and is this noticeably more powerful than the GTX 670M and AMD Radeon HD 6970M. Current games as of 2011 should therefore run fluently in Full HD resolution and maximum details. Only a few very demanding games, such as Metro 2033, may need slightly reduced graphical settings for smoother gameplay.

Features

Similar to the older GF104 chip, the GF114 supports Blu-Ray Bitstream HD Audio output via HDMI. This means the GPU can transfer, for example, Dolby True HD or DTS-HD bitstream without quality loss to a HiFi receiver.

The GTX 670M offers PureVideo HD technology for video decoding. The included Video Processor 4 (VP4) supports feature set C and is able to fully decode MPEG-1, MPEG-2, MPEG-4 Part 2 (MPEG-4 ASP - e.g., DivX or Xvid), VC-1/WMV9, and H.264 (VLD, IDCT, Motion Compensation, and Deblocking). 

Furthermore, the GPU is able to decode two 1080p streams simultaneously (e.g., Blu-Ray Picture-in-Picture).

Through CUDA, OpenCL, and DirectCompute 2.1 support, the GeForce GTX 675M can be used for general calculations. For example, the stream processor can encode videos considerably faster than can many modern CPUs. Furthermore, physics calculations can be done by the GPU using PhysX if supported (e.g., in Mafia 2 or Metro 2033).

3D Vision enables the laptop to send 3D content (3D games, 3D Web Streaming, 3D photos, 3D Blu-Rays) to a built-in 3D-enabled screen or an external 3D TV if supported by the laptop manufacturer.

The power consumption of the GeForce GTX 675M should be the same as of the old GTX 580M, which is rumored to be about 100 Watt (TDP including the MXM board and memory). If not under load, the chip is clocked at 50/100 MHz (chip/shader) and 200/400 MHz in 2D and 3D mode, respectively, for power-saving purposes. Furthermore, the 600M series supports Optimus to automatically switch between the Intel integrated graphics card and the Nvidia GPU. Whether or not a laptop includes this feature is dependent on the manufacturer.

ManufacturerNVIDIA
GeForce GTX 600M Series
GeForce GTX 680M SLI (compare) 2688 @ 720 MHz2x 256 Bit @ 3600 MHz
GeForce GTX 680MX (compare) 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 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-GS1
ArchitectureFermi
Pipelines384 - unified
Core Speed620 MHz
Shader Speed1240 MHz
Memory Speed3000 MHz
Memory Bus Width256 Bit
Memory TypeGDDR5
Max. Amount of Memory2048 MB
Shared Memoryno
DirectXDirectX 11, Shader 5.0
Transistor Count1950 Million
technology40 nm
FeaturesOptimus, SLI, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV Play
Notebook Sizelarge
Date of Announcement22.03.2012

Benchmarks

3DMark - Cloud Gate Standard Graphics 1280x720
18056 Points (11%)
3DMark 11 - Performance 1280x720
min: 3488     avg: 3557.5     median: 3531 (12%)     max: 3656 points
3DMark 11 - Performance GPU 1280x720
min: 3203     avg: 3248.8     median: 3218 (6%)     max: 3342 points
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
34.7 fps (13%)
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
min: 47.2     avg: 53     median: 47.6 (21%)     max: 64.1 fps
SPECviewperf 11
Siemens NX 1920x1080 +
Tcvis 1920x1080 +
SolidWorks 1920x1080 +
Pro/ENGINEER 1920x1080 +
Maya 1920x1080 +
Lightwave 1920x1080 +
Ensight 1920x1080 +
Catia 1920x1080 +
Cinebench R10 Shading 32Bit +
Cinebench R11.5 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.

Dota 2

Dota 2

2013
low 1024x768
107.8  fps    + Compare
med. 1366x768
85.7  fps    + Compare
ultra 1920x1080
45.2  fps    + Compare
» With all tested laptops playable in detail settings ultra.
Company of Heroes 2
low 1024x768
46.1  fps    + Compare
med. 1366x768
39.4  fps    + Compare
high 1366x768
23.5  fps    + Compare
ultra 1920x1080
11.2  fps    + Compare
» With all tested laptops playable in detail settings med..
GRID 2

GRID 2

2013
low 1024x768
172.4  fps    + Compare
med. 1366x768
125.4  fps    + Compare
high 1366x768
106  fps    + Compare
ultra 1920x1080
28.9  fps    + Compare
» With all tested laptops playable in detail settings high.
Metro: Last Light
low 1024x768
87.5  fps    + Compare
med. 1366x768
71.7  fps    + Compare
high 1366x768
38.1  fps    + Compare
ultra 1920x1080
20.7  fps    + Compare
» With all tested laptops playable in detail settings high.
BioShock Infinite
low 1280x720
164.3  fps    + Compare
med. 1366x768
103.1  fps    + Compare
high 1366x768
91.1  fps    + Compare
ultra 1920x1080
28.6  fps    + Compare
» With all tested laptops playable in detail settings high.
StarCraft II: Heart of the Swarm
low 1024x768
254.1  fps    + Compare
med. 1366x768
113.3  fps    + Compare
high 1366x768
99.4  fps    + Compare
ultra 1920x1080
41.3  fps    + Compare
» With all tested laptops playable in detail settings ultra.
SimCity