NVIDIA GeForce GTX 485M SLI vs NVIDIA GeForce GTX 485M

NVIDIA GeForce GTX 485M SLI

► remove 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.

NVIDIA GeForce GTX 485M

► remove

The Nvidia GeForce GTX 485M is the fastest graphics card for laptops at the time of announcement (Q1 2011). It is based on the GF104 chip and offers all 384 shader cores and the full 256 Bit memory bus. Due to the high clock rate of 575 MHz, it is significantly faster than the old GeForce GTX 480M of which it replaces. It also supports DirectX 11 and OpenGL 4.0.

Other than the GeForce GTX 480M, the 485M is no longer based on a trimmed down GF100 chip, but on the related GF104 instead. The GF104 is designed for the consumer sector and has a total of 384 cores. A number of cores may be disabled, for example the 470M with only 288 active cores.

The technology of the GF104 differs quite a bit from the GF100 chip (which was actually designed for professional use). The GF104 has more shaders (3x16 vs. 2x16), texture units (8 vs. 4) and SFUs (Special-Funciton-Units) per Streaming-Multiprocessors (SM). Nvidia now uses the superscalar architecture as there are still only two warp schedulers supporting three shader blocks. In theory, this helps to utilize the shaders more efficiently and increases the performance per core.

However, in the worst case, the performance can drop below the GF100 architecture (and its predecessors). The ECC memory protection, important in professional applications, was completely omitted and the FP64 was trimmed down (only 1/3 of the shaders are FP64-capable, only 1/12 of the FP32 performance). Because of these reductions in the GF104, the size of a SM increased only by 25% despite the higher number of shaders.

Note that it is not possible to directly compare the number of cores to the AMD Radeon graphics cards (e.g. HD 5870) or even to Nvidia's own predecessors (e.g., G92b), because shader architecture and clock rates are significantly different in the GF104 chip.

Performance

In our extensive test of the GeForce GTX 485M, we found that the GTX485M is significantly faster than the old GeForce GTX 480M (at the same TDP rating). The performance is on a level with two GeForce GTX 460M in SLI mode. Nearly all games are therefore playable in highest details and resolutions. Even demanding games like Mafia 2 or Battlefield Bad Company 2 can run fluently in 1080p with maximus detail settings. Detailed benchmarks can be found at the end of this page.

Features

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

For decoding HD videos, the GTX485M supports PureVideo HD. The built-in Processor 4 (VP4) handles Feature Set C. As a result, MPEG-1, MPEG-2, MPEG-4 Part 2 (MPEG-4 ASP - z.B. DivX or Xvid), VC-1/WMV9 and H.264 can be fully decoded by the graphics card (VLD, IDCT, Motion Compensation, and Deblocking). Furthermore, two streams can be simultaneously decoded in realtime, e.g. Blu-Ray Picture-in-Picture (2x1080p lt DXVAChecker). In addition, PureVideo HD indicates HDCP encoding for digital interfaces.

The shader cores (also called CUDA cores) can also be used for general computations (e.g. Video Transcoding) by using the interfaces CUDA, DirectCompute 2.1 or OpenCL. Thanks to PhysX, the 485M can also perform physics calculations.

According to Nvidia, the support for 3D Vision includes support for the recent HDMI 1.4a standard as well. If enabled by the laptop manufacturer, content such as 3D games, 3D web streaming videos, 3D pictures and 3D Blu-Ray videos can be displayed on a 3D-capable TV (via discrete 3DTV Play) or on the internal notebook 3D display.

With regards to energy demand, the GTX 485M should be on par with the GeForce GTX 480M. In other words, both graphics cards should draw about 100 Watts each when including their respective memory and MXM boards. Due to the higher performance from the 485M, the performance/power efficiency here has clearly been improved.

Compared to desktop graphics cards, the performance of the 485M should be on par with a GeForce GTX 460 768MB which features less cores but operates on higher clock rates.

NVIDIA GeForce GTX 485M SLINVIDIA GeForce GTX 485M
ManufacturerNVIDIANVIDIA
GeForce GTX 400M Series
GeForce GTX 485M SLI 768 @ 575 MHz256 Bit @ 1500 MHz
GeForce GTX 470M SLI (compare) 576 @ 535 MHz192 Bit @ 1250 MHz
GeForce GTX 480M SLI (compare) 704 @ 425 MHz256 Bit @ 1200 MHz
GeForce GTX 460M SLI (compare) 384 @ 675 MHz192 Bit @ 1250 MHz
GeForce GTX 485M 384 @ 575 MHz256 Bit @ 1500 MHz
GeForce GTX 470M (compare) 288 @ 535 MHz192 Bit @ 1250 MHz
GeForce GTX 480M (compare) 352 @ 425 MHz256 Bit @ 1200 MHz
GeForce GTX 460M (compare) 192 @ 675 MHz192 Bit @ 1250 MHz
GeForce GTX 485M SLI 768 @ 575 MHz256 Bit @ 1500 MHz
GeForce GTX 470M SLI (compare) 576 @ 535 MHz192 Bit @ 1250 MHz
GeForce GTX 480M SLI (compare) 704 @ 425 MHz256 Bit @ 1200 MHz
GeForce GTX 460M SLI (compare) 384 @ 675 MHz192 Bit @ 1250 MHz
GeForce GTX 485M 384 @ 575 MHz256 Bit @ 1500 MHz
GeForce GTX 470M (compare) 288 @ 535 MHz192 Bit @ 1250 MHz
GeForce GTX 480M (compare) 352 @ 425 MHz256 Bit @ 1200 MHz
GeForce GTX 460M (compare) 192 @ 675 MHz192 Bit @ 1250 MHz
CodenameN11E-GTX-A1N12E-GTX-A1
ArchitectureFermiFermi
768 - 384 -
Core575 MHz575 MHz
Shader1150 MHz1150 MHz
Memory1500 MHz1500 MHz
Bus256 Bit256 Bit
MemoryGDDR5GDDR5
Max. Memory2x2048 MB
nono
DirectXDirectX 11, 5.0DirectX 11, 5.0
Technology40 nm40 nm
Size
Introduced06.01.2011 06.01.2010
Manufacturerhttp://www.nvidia.com/object/geforce_gtx...

3DMark 11 - Performance 1280x720
5468 points (16%)
min: 2891     avg: 2942     median: 2942 (8%)     max: 2993 points
3DMark 11 - Performance GPU 1280x720
5334 points (10%)
min: 2668     avg: 2709     median: 2709 (5%)     max: 2750 points
3DMark Vantage
P Result 1280x1024 + NVIDIA GeForce GTX 485M SLI
P Result 1280x1024 + NVIDIA GeForce GTX 485M
P GPU no PhysX 1280x1024 + NVIDIA GeForce GTX 485M SLI
P GPU no PhysX 1280x1024 + NVIDIA GeForce GTX 485M
3DMark 03 - Standard 1024x768
87591 Points (46%)
3DMark 05 - Standard 1024x768
29690 Points (56%)
min: 23218     avg: 24983.5     median: 24983 (47%)     max: 26749 Points
3DMark 06 Standard 1280x1024 + NVIDIA GeForce GTX 485M SLI
Standard 1280x1024 + NVIDIA GeForce GTX 485M
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
78.5 fps (35%)
40.9 fps (18%)
SPECviewperf 11
Siemens NX 1920x1080 + NVIDIA GeForce GTX 485M SLI
Siemens NX 1920x1080 + NVIDIA GeForce GTX 485M
Tcvis 1920x1080 + NVIDIA GeForce GTX 485M SLI
Tcvis 1920x1080 + NVIDIA GeForce GTX 485M
SolidWorks 1920x1080 + NVIDIA GeForce GTX 485M SLI
SolidWorks 1920x1080 + NVIDIA GeForce GTX 485M
Pro/ENGINEER 1920x1080 + NVIDIA GeForce GTX 485M SLI
Pro/ENGINEER 1920x1080 + NVIDIA GeForce GTX 485M
Maya 1920x1080 + NVIDIA GeForce GTX 485M SLI
Maya 1920x1080 + NVIDIA GeForce GTX 485M
Lightwave 1920x1080 + NVIDIA GeForce GTX 485M SLI
Lightwave 1920x1080 + NVIDIA GeForce GTX 485M
Ensight 1920x1080 + NVIDIA GeForce GTX 485M SLI
Ensight 1920x1080 + NVIDIA GeForce GTX 485M
Catia 1920x1080 + NVIDIA GeForce GTX 485M SLI
Catia 1920x1080 + NVIDIA GeForce GTX 485M
Windows 7 Experience Index - Gaming graphics
7.5 points (107%)
6.6 points (94%)
Windows 7 Experience Index - Graphics
7.5 points (107%)
5.7 points (81%)
Cinebench R10 Shading 32Bit + NVIDIA GeForce GTX 485M SLI
Shading 32Bit + NVIDIA GeForce GTX 485M
Cinebench R11.5 OpenGL 64Bit + NVIDIA GeForce GTX 485M SLI
OpenGL 64Bit + NVIDIA GeForce GTX 485M

Average Benchmarks NVIDIA GeForce GTX 485M SLI → 100%

Average Benchmarks NVIDIA GeForce GTX 485M → 80%

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

Crysis 2

Crysis 2

2011
low 800x600
GeForce GTX 485M:
166.6  fps
med. 1024x768
GeForce GTX 485M:
117.5  fps
high 1366x768
GeForce GTX 485M:
87.8  fps
ultra 1920x1080
GeForce GTX 485M:
30.3  fps
GeForce GTX 485M:
»
low 800x600
100%
GeForce GTX 485M SLI:
167  fps
44%
GeForce GTX 485M:
74.3  fps
med. 1024x768
100%
GeForce GTX 485M SLI:
125.1  fps
67%
GeForce GTX 485M:
84.2  fps
high 1360x768
100%
GeForce GTX 485M SLI:
128.4  fps
58%
GeForce GTX 485M:
72.7 77.5 ~ 75 fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
119  fps
61%
GeForce GTX 485M:
71.4 74.2 ~ 73 fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
Fifa 11

Fifa 11

2010
low 800x600
100%
GeForce GTX 485M SLI:
637.8  fps
71%
GeForce GTX 485M:
455  fps
med. 1024x768
100%
GeForce GTX 485M SLI:
426.6  fps
77%
GeForce GTX 485M:
327  fps
high 1360x768
100%
GeForce GTX 485M SLI:
307.3  fps
88%
GeForce GTX 485M:
271  fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
199.2  fps
99%
GeForce GTX 485M:
196.9  fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
Mafia 2

Mafia 2

2010
low 800x600
100%
GeForce GTX 485M SLI:
145.3  fps
67%
GeForce GTX 485M:
97.9  fps
med. 1024x768
100%
GeForce GTX 485M SLI:
139.5  fps
65%
GeForce GTX 485M:
90.8  fps
high 1360x768
100%
GeForce GTX 485M SLI:
132.4  fps
65%
GeForce GTX 485M:
85.1 87.3 ~ 86 fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
102.2  fps
58%
GeForce GTX 485M:
58.3 59.2 ~ 59 fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
low 1024x768
100%
GeForce GTX 485M SLI:
323.8  fps
68%
GeForce GTX 485M:
220.9  fps
med. 1360x768
100%
GeForce GTX 485M SLI:
105.3  fps
82%
GeForce GTX 485M:
85.9  fps
high 1360x768
100%
GeForce GTX 485M SLI:
94.8  fps
90%
GeForce GTX 485M:
85.2  fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
65.9  fps
86%
GeForce GTX 485M:
56.5  fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
low 800x600
100%
GeForce GTX 485M SLI:
149.6  fps
78%
GeForce GTX 485M:
116.2  fps
med. 1360x768
100%
GeForce GTX 485M SLI:
141  fps
57%
GeForce GTX 485M:
80.8  fps
high 1600x900
100%
GeForce GTX 485M SLI:
89.4  fps
54%
GeForce GTX 485M:
48.1  fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
31.4  fps
51%
GeForce GTX 485M:
16.1  fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
low 1024x768
100%
GeForce GTX 485M SLI:
198.2  fps
med. 1366x768
100%
GeForce GTX 485M SLI:
192.4  fps
70%
GeForce GTX 485M:
134.5  fps
high 1366x768
100%
GeForce GTX 485M SLI:
168.6  fps
60%
GeForce GTX 485M:
100.5 101.5 ~ 101 fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
96.8  fps
54%
GeForce GTX 485M:
49.5 53.6 ~ 52 fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
low 800x600
100%
GeForce GTX 485M SLI:
361.4  fps
62%
GeForce GTX 485M:
223.7  fps
med. 1024x768
100%
GeForce GTX 485M SLI:
212.5  fps
62%
GeForce GTX 485M:
130.9  fps
high 1366x768
100%
GeForce GTX 485M SLI:
190.1  fps
62%
GeForce GTX 485M:
118.4  fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
142  fps
54%
GeForce GTX 485M:
76.3  fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
Risen

Risen

2009
low 800x600
100%
GeForce GTX 485M SLI:
189.2  fps
85%
GeForce GTX 485M:
160.3  fps
med. 1024x768
100%
GeForce GTX 485M SLI:
157.5  fps
63%
GeForce GTX 485M:
99.9  fps
high 1366x768
100%
GeForce GTX 485M SLI:
142.7  fps
51%
GeForce GTX 485M:
72.6  fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
109.1  fps
48%
GeForce GTX 485M:
52.7  fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
Resident Evil 5

Resident Evil 5

2009
low 800x600
100%
GeForce GTX 485M SLI:
202.6  fps
69%
GeForce GTX 485M:
140  fps
high 1360x768
100%
GeForce GTX 485M SLI:
143.7  fps
67%
GeForce GTX 485M:
96.9  fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
Need for Speed Shift

Need for Speed Shift

2009
low 800x600
GeForce GTX 485M:
141.9  fps
med. 1024x768
100%
GeForce GTX 485M SLI:
138.6  fps
77%
GeForce GTX 485M:
106.9  fps
high 1366x768
100%
GeForce GTX 485M SLI:
139  fps
72%
GeForce GTX 485M:
100.1  fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
126  fps
56%
GeForce GTX 485M:
70.7  fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
Colin McRae: DIRT 2

Colin McRae: DIRT 2

2009
low 800x600
100%
GeForce GTX 485M SLI:
234.9  fps
68%
GeForce GTX 485M:
159.9  fps
med. 1024x768
100%
GeForce GTX 485M SLI:
197.6  fps
70%
GeForce GTX 485M:
138.8  fps
high 1360x768
100%
GeForce GTX 485M SLI:
177.2  fps
70%
GeForce GTX 485M:
124.1 124.8 ~ 124 fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
114.3  fps
61%
GeForce GTX 485M:
69.7 70.3 ~ 70 fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
Anno 1404

Anno 1404

2009
low 1024x768
100%
GeForce GTX 485M SLI:
228.2  fps
94%
GeForce GTX 485M:
214.2  fps
ultra 1280x1024
100%
GeForce GTX 485M SLI:
138.9  fps
60%
GeForce GTX 485M:
83.3  fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
F.E.A.R. 2

F.E.A.R. 2

2009
low 800x600
100%
GeForce GTX 485M SLI:
283.8  fps
96%
GeForce GTX 485M:
271.6  fps
med. 1024x768
100%
GeForce GTX 485M SLI:
202.4  fps
90%
GeForce GTX 485M:
182.7  fps
high 1280x1024
100%
GeForce GTX 485M SLI:
195.9  fps
78%
GeForce GTX 485M:
153.5  fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
154.3  fps
57%
GeForce GTX 485M:
88.5  fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
GTA IV - Grand Theft Auto

GTA IV - Grand Theft Auto

2008
low 800x600
GeForce GTX 485M:
65.5  fps
med. 1024x768
GeForce GTX 485M:
63.9  fps
high 1280x1024
GeForce GTX 485M:
62  fps
GeForce GTX 485M:
»
Left 4 Dead

Left 4 Dead

2008
low 640x480
GeForce GTX 485M:
184.3  fps
high 1024x768
GeForce GTX 485M:
121.6  fps
GeForce GTX 485M:
»
Far Cry 2

Far Cry 2

2008
low 640x480
GeForce GTX 485M:
192.8  fps
high 1024x768
GeForce GTX 485M:
141.4  fps
ultra 1920x1080
GeForce GTX 485M:
68.3  fps
GeForce GTX 485M:
»
Supreme Commander - FA Bench

Supreme Commander - FA Bench

2007
med. 1024x768
GeForce GTX 485M:
81.7  fps
high 1024x768
GeForce GTX 485M:
78.9  fps
ultra 1920x1080
GeForce GTX 485M:
59.9  fps
GeForce GTX 485M:
»
Crysis - GPU Benchmark

Crysis - GPU Benchmark

2007
low 1024x768
100%
GeForce GTX 485M SLI:
158.2  fps
86%
GeForce GTX 485M:
135.6  fps
med. 1024x768
100%
GeForce GTX 485M SLI:
92.8  fps
95%
GeForce GTX 485M:
88.1  fps
high 1024x768
100%
GeForce GTX 485M SLI:
76.7  fps
97%
GeForce GTX 485M:
74.2  fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
43.3  fps
52%
GeForce GTX 485M:
22.6  fps
GeForce GTX 485M SLI:
»
GeForce GTX 485M:
»
Crysis - CPU Benchmark

Crysis - CPU Benchmark

2007
low 1024x768
100%
GeForce GTX 485M SLI:
209.5  fps
med. 1024x768
100%
GeForce GTX 485M SLI:
96.7  fps
high 1024x768
100%
GeForce GTX 485M SLI:
78.6  fps
ultra 1920x1080
100%
GeForce GTX 485M SLI:
41.4  fps
GeForce GTX 485M SLI:
»

Average Gaming NVIDIA GeForce GTX 485M SLI → 100%

Average Gaming NVIDIA GeForce GTX 485M → 69%

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