NVIDIA GeForce GTX 485M

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.

ManufacturerNVIDIA
GeForce GTX 400M Series

GeForce GTX 485M SLI

768 @ 575MHz256 Bit @ 1500MHz

GeForce GTX 470M SLI

576 @ 535MHz192 Bit @ 1250MHz

GeForce GTX 480M SLI

704 @ 425MHz256 Bit @ 1200MHz

GeForce GTX 460M SLI

384 @ 675MHz192 Bit @ 1250MHz
GeForce GTX 485M 384 @ 575MHz256 Bit @ 1500MHz

GeForce GTX 470M

288 @ 535MHz192 Bit @ 1250MHz

GeForce GTX 480M

352 @ 425MHz256 Bit @ 1200MHz

GeForce GTX 460M

192 @ 675MHz192 Bit @ 1250MHz
CodenameN12E-GTX-A1
ArchitectureFermi
Pipelines384 - unified
Core Speed *575 MHz
Shader Speed *1150 MHz
Memory Speed *1500 MHz
Memory Bus Width256 Bit
Memory TypeGDDR5
Shared Memoryno
DirectXDirectX 11, Shader 5.0
Power Consumption100 Watt
technology40 nm
Notebook Sizelarge
Date of Announcement06.01.2010
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

3DMark 11 - Performance 1280x720
0% 100%
min: 2891      avg: 2942 (22%)     median: 2942 (22%)     max: 2993 points
3DMark 11 - Performance GPU 1280x720
0% 100%
min: 2668      avg: 2709 (17%)     median: 2709 (17%)     max: 2750 points
...
Radeon HD 5770 -11%
GeForce GTX 485M
GeForce GTX 460 768MB 4%
Radeon HD 6790 7%
Radeon HD 7770 14%
...
0%
100%
3DMark Vantage - P Result no PhysX 1280x1024
0% 100%
min: 13172      avg: 13449.5 (35%)     median: 13536 (35%)     max: 13554 Points
3DMark Vantage - P GPU no PhysX 1280x1024
0% 100%
min: 12142      avg: 12198.8 (26%)     median: 12191.5 (26%)     max: 12270 Points
3DMark 06
0% 100%
min: 17852      avg: 19464.5 (65%)     median: 19877.5 (66%)     max: 20251 Points
3DMark 05 - Standard 1024x768
0% 100%
min: 23218      avg: 24983.5 (68%)     median: 24983.5 (68%)     max: 26749 Points
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
0% 100%
min: 40.9      avg: 40.9 (22%)     median: 40.9 (22%)     max: 40.9 fps
PCMark Vantage - Gaming Score 1024x768
0% 100%
min: 8018      avg: 8498 (32%)     median: 8498 (32%)     max: 8978 Points
SPECviewperf 11 - Catia 1920x1080
0% 100%
min: 4.32      avg: 4.3 (6%)     median: 4.3 (6%)     max: 4.32 fps
SPECviewperf 11 - Ensight 1920x1080
0% 100%
min: 22.87      avg: 22.9 (28%)     median: 22.9 (28%)     max: 22.87 fps
SPECviewperf 11 - Lightwave 1920x1080
0% 100%
min: 8.85      avg: 8.9 (11%)     median: 8.9 (11%)     max: 8.85 fps
SPECviewperf 11 - Maya 1920x1080
0% 100%
min: 6.99      avg: 7 (6%)     median: 7 (6%)     max: 6.99 fps
SPECviewperf 11 - Pro/ENGINEER 1920x1080
0% 100%
min: 1.04      avg: 1 (5%)     median: 1 (5%)     max: 1.04 fps
SPECviewperf 11 - SolidWorks 1920x1080
0% 100%
min: 6.24      avg: 6.2 (10%)     median: 6.2 (10%)     max: 6.24 fps
SPECviewperf 11 - Tcvis 1920x1080
0% 100%
min: 0.7      avg: 0.7 (1%)     median: 0.7 (1%)     max: 0.7 fps
SPECviewperf 11 - Siemens NX 1920x1080
0% 100%
min: 2.14      avg: 2.1 (3%)     median: 2.1 (3%)     max: 2.14 fps
Cinebench R11.5 - OpenGL 64Bit
0% 100%
min: 40.88      avg: 46.7 (43%)     median: 48.1 (44%)     max: 49.58 Points
Cinebench R10 - Shading 32Bit
0% 100%
min: 5454      avg: 5780 (48%)     median: 5859.5 (48%)     max: 5947 Points
Windows 7 Experience Index - Graphics
0% 100%
min: 5.7      avg: 5.7 (72%)     median: 5.7 (72%)     max: 5.7 points
Windows 7 Experience Index - Gaming graphics
0% 100%
min: 6.6      avg: 6.6 (84%)     median: 6.6 (84%)     max: 6.6 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.

Crysis 2

Crysis 2

2011
low 800x600
166.6  fps      Compare
med. 1024x768
117.5  fps      Compare
high 1366x768
87.8  fps      Compare
ultra 1920x1080
30.3  fps      Compare
» With all tested laptops playable in detail settings high.
Call of Duty: Black Ops
low 800x600
74.3  fps      Compare
med. 1024x768
84.2  fps      Compare
high 1360x768
72.7 77.5 ~ 75 fps      Compare
ultra 1920x1080
71.4 74.2 ~ 73 fps      Compare
» With all tested laptops playable in detail settings ultra.
Fifa 11

Fifa 11

2010
low 800x600
455  fps      Compare
med. 1024x768
327  fps      Compare
high 1360x768
271  fps      Compare
ultra 1920x1080
196.9  fps      Compare
» With all tested laptops playable in detail settings ultra.
Mafia 2

Mafia 2

2010
low 800x600
97.9  fps      Compare
med. 1024x768
90.8  fps      Compare
high 1360x768
85.1 87.3 ~ 86 fps      Compare
ultra 1920x1080
58.3 59.2 ~ 59 fps      Compare
» With all tested laptops playable in detail settings ultra.
StarCraft 2
low 1024x768
220.9  fps      Compare
med. 1360x768
85.9  fps      Compare
high 1360x768
85.2  fps      Compare
ultra 1920x1080
56.5  fps      Compare
» With all tested laptops playable in detail settings ultra.
Metro 2033
low 800x600
116.2  fps      Compare
med. 1360x768
80.8  fps      Compare
high 1600x900
48.1  fps      Compare
ultra 1920x1080
16.1  fps      Compare
» With all tested laptops playable in detail settings high.
Battlefield: Bad Company 2
med. 1366x768
134.5  fps      Compare
high 1366x768
100.5 101.5 ~ 101 fps      Compare
ultra 1920x1080
49.5 53.6 ~ 52 fps      Compare
» With all tested laptops playable in detail settings ultra.
CoD Modern Warfare 2
low 800x600
223.7  fps      Compare
med. 1024x768
130.9  fps      Compare
high 1366x768
118.4  fps      Compare
ultra 1920x1080
76.3  fps      Compare
» With all tested laptops playable in detail settings ultra.
Risen

Risen

2009
low 800x600
160.3  fps      Compare
med. 1024x768
99.9  fps      Compare
high 1366x768
72.6  fps      Compare
ultra 1920x1080
52.7  fps      Compare
» With all tested laptops playable in detail settings ultra.
Need for Speed Shift

Need for Speed Shift

2009
low 800x600
141.9  fps      Compare
med. 1024x768
106.9  fps      Compare
high 1366x768
100.1  fps      Compare
ultra 1920x1080
70.7  fps      Compare
» With all tested laptops playable in detail settings ultra.
Colin McRae: DIRT 2

Colin McRae: DIRT 2

2009
low 800x600
159.9  fps      Compare
med. 1024x768
138.8  fps      Compare
high 1360x768
124.1 124.8 ~ 124 fps      Compare
ultra 1920x1080
69.7 70.3 ~ 70 fps      Compare