NVIDIA GeForce GTX 485M SLI

The NVIDIA GeForce GTX 485M SLI is a high-end laptop graphics solution based on two GTX 485M graphics cards. 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).

The GeForce GTX485M SLI supports the same features as a single GTX 485M card. Therefore, it supports DirectX 11 and is produced in a 40nm fabrication process at TSMC.

Unlike the GeForce GTX 480M, the 485M is no longer based on a trimmed down GF100 core, but on the GF104 core instead. The latter has been designed for the consumer sector and has 384 cores maximum if completely enabled. More information on the GF104 core can be found on the GTX 485M page.

The performance of the Nvidia GeForce GTX 485M SLI is clearly better than the GTX 480M SLI and is therefore the fastest graphics solution for laptops as of early 2011. It allows the user to play all current games in high resolutions and detail settings with Antialiasing activated. Only Metro 2033 and Crysis may stutter with high Antialiasing and maximum details. Compared to a single GTX 485M, the performance from the SLI combination should be about 40% higher on average (with high details and Antialiasing). Compared to Crossfire solutions by AMD, the Nvdia SLI drivers have the advantage as of this writing.

As the GeForce 300M series, the GeForce GTX 485M supports PureVideo HD with VideoProcessor 4 (VP4 with Feature Set C). This means that the GPU is able to fully decode HD videos in H.254, VC-1, MPEG-2, and MPEG-4 ASP. Using Flash 10.1, the graphics card can also accelerate Flash videos.

What's new in the GF104 chips compared to the GF100 (480M) is the support for Bitstream transfer of HD Audio (Blu-Ray) via HDMI. Similar to the HD 5850, the GTX 485M can transmit Dolby True HD and DTS-HD via Bitstream to compatible receivers without quality loss.

The rendering cores of the Nvidia GeForce GTX 485M can be used for general calculations using CUDA or DirectCompute. In other words, the encoding for HD videos can be done significantly faster by using the shader cores of the GPUs instead of using modern CPUs. PhysX is also supported by the mobile Fermi to calculate physics effects in supported games. Furthermore, a single GTX485M can be used to calculate PhysX while the other card can render frames in the SLI setup.

Compared to desktop GPUs, the Geforce GTX 485M SLI is most similar to two Nvidia GeForce GTX 460 cards running in an SLI configuration.

Manufacturer

NVIDIA

GeForce GTX 400M Series

GeForce GTX 485M SLI	768 @ 0.58 GHz	256 Bit @ 1500 MHz
GeForce GTX 470M SLI	576 @ 0.54 GHz	192 Bit @ 1250 MHz
GeForce GTX 480M SLI	704 @ 0.43 GHz	256 Bit @ 1200 MHz
GeForce GTX 460M SLI	384 @ 0.68 GHz	192 Bit @ 1250 MHz
GeForce GTX 485M	384 @ 0.58 GHz	256 Bit @ 1500 MHz
GeForce GTX 470M	288 @ 0.54 GHz	192 Bit @ 1250 MHz
GeForce GTX 480M	352 @ 0.43 GHz	256 Bit @ 1200 MHz
GeForce GTX 460M	192 @ 0.68 GHz	192 Bit @ 1250 MHz

Codename

N11E-GTX-A1

Architecture

Fermi

Pipelines

768 - unified

Core Speed

575 MHz

Shader Speed

1150 MHz

Memory Speed

1500 MHz

Memory Bus Width

256 Bit

Memory Type

GDDR5

Max. Amount of Memory

2x2048 MB

Shared Memory

DirectX

DirectX 11, Shader 5.0

technology

40 nm

Notebook Size

large

Date of Announcement

06.01.2011

Link to Manufacturer Page

http://www.nvidia.com/object/geforce_gtx...

Benchmarks

3DMark 11 - 3DM11 Performance Score

5468 Points (14%)

+ 1 benchmarks and specifications + Show comparison chart

3DMark 11 - 3DM11 Performance GPU

5334 Points (9%)

+ 1 benchmarks and specifications - Hide comparison chart

AMD Radeon HD 6250 -97%

...

NVIDIA GeForce GTX 480 -6%

NVIDIA GeForce GTX 570 -6%

NVIDIA Quadro M2000M -4%

AMD Radeon Pro 555 -3%

AMD Radeon RX Vega 11 -2%

AMD Radeon RX 640 -2%

NVIDIA GeForce GTX 960M -1%

AMD Radeon Pro 560 -1%

NVIDIA Quadro M1200 0%

NVIDIA GeForce GTX 485M SLI

AMD Radeon RX 550X (Laptop) 0%

NVIDIA GeForce GTX 750 Ti 1%

AMD Radeon Pro 455 1%

AMD FirePro M6100 2%

AMD Radeon R9 M385X 3%

AMD Radeon HD 6970M Crossfire 4%

NVIDIA GeForce GT 755M SLI 6%

AMD Radeon HD 7970M 10%

NVIDIA Quadro P620 11%

...

NVIDIA GeForce RTX 3090 1000%

100%

3DMark Vantage
3DM Vant. Perf. total +

3DM Vant. Perf. GPU no PhysX +

3DMark 03 - 3DMark 03 - Standard

87591 Points (46%)

+ 1 benchmarks and specifications + Show comparison chart

3DMark 05 - 3DMark 05 - Standard

29690 Points (43%)

+ 1 benchmarks and specifications + Show comparison chart

3DMark 06 3DMark 06 - Standard 1280x1024 +

Unigine Heaven 2.1 - Heaven 2.1 high

78.5 fps (15%)

+ 2 benchmarks and specifications + Show comparison chart

SPECviewperf 11
specvp11 snx-01 +

specvp11 lightwave-01 +

specvp11 ensight-04 +

specvp11 catia-03 +

Windows 7 Experience Index - Win7 Gaming graphics

7.5 Points (95%)

+ 1 benchmarks and specifications + Show comparison chart

Windows 7 Experience Index - Win7 Graphics

7.5 Points (95%)

+ 1 benchmarks and specifications + Show comparison chart

Cinebench R10 Cinebench R10 Shading (32bit) +

Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit +

- 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 detailed information on the benchmark results, click on the fps number.