NVIDIA GeForce GTX 470M SLI vs NVIDIA GeForce GTX 460M

NVIDIA GeForce GTX 470M SLI

► remove NVIDIA GeForce GTX 470M SLI

The NVIDIA GeForce GTX 470M SLI is a high-end graphics solution for laptops based on two GeForce GTX 470M graphic cards in SLI mode. Each card usually renders a single frame in an alternating manner. 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). Each single GTX 470M is based on the GF104 core and therefore supports DirectX1 11 and OpenGL 4.0.

GF104 architecture

The GF104 core of the GTX 470M is related to the GF100 core of the GeFore GTX 480M that offers 384 shaders and a 256 Bit memory bus for GDDR5. The GTX 470M, however, offers only 288 cores of the 384 and a 192 Bit memory bus. The architecture of the GF104 is not comparable to the old GT215 (e.g., GeForce GTS 350M) or G92b (e.g., GeForce GTX 285M) cores.  

Unlike the GF100, the smaller GF104, GF106, and GF108 cores were shortened and considerably modified. In contrast to the GF100, which was designed for professional applications, these chips target the consumer market. They feature more shaders (3x16 instead of 2x16), more texture units (8 instead of 4) and SFUs per streaming multi-processor (SM). As there are still only 2 warp schedulers (versus 3 shader groups), Nvidia now uses superscalar execution to use the higher amount of shaders per SM more efficiently. In theory, the shaders can therefore be utilized more efficiently and the performance per core is improved. 

However, in worst case scenarios the performance can also be worse than that of the GF100 (and its predecessors). The ECC memory protection, which is important for professional applications, was completely omitted and the FP64 hardware was shortened (only 1/3 of the shader are FP64-capable and therefore only 1/12 of the performance of the FP32). Because of these cutbacks, the size of the SM  grew only by 25% despite the higher number of shaders and larger warp schedulers with superscalar dispatch capabilities. Due to the different shader architectures and the higher clock rate of the shader domain, the core count can not be directly compared to AMD cores of the Radeon 5000 series (e.g. HD 5850).

Detailed information on the GF104 architecture (and by extension also the GF106 and GF108) can be found in the desktop GTX 460 article by Anandtech.

Performance

The performance of the GTX 470M SLI combination should be similar to the GTX 480M SLI due to the high-clocked GTX470M cards. Generally, the SLI gain depends on the used application/game and the driver support. Currently, the SLI driver support from Nvidia is better than the Crossfire support from AMD, leading to higher gains. About 30% more performance is gained on average compared to a single GTX 470M (in high resolutions and with Anti-Aliasing). Therefore, all games from 2010 except Metro 2033 should be playable in the highest detail settings. Metro 2033 only ran with 23 fps in our tests with a GTX 480M SLI system and should therefore score similar on the GTX 470M SLI combination.

Features

A novelty of the GF104/106/108 chips is the support of Bitstream HD Audio (Blu-Ray) output via HDMI. Similar to the Radeon HD 5850, the GTX 470M can transfer Dolby True HD and DTS-HD bitstream without quality loss to a HiFi receiver.

The GTX470M offers the PureVideo HD technology for video decoding. The included Video Processor 4 (VP4) supports feature set C and therefore the GPU 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). The X500 tester was able to decode the VC-1 encoded Elephants Dream video with about 3-6% CPU load (according to the task manager). The H.264-encoded Big Buck Bunny video was played back with 1-3% CPU load (both 1080p videos).

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

Through CUDA, OpenCL and DirectCompute 2.1 support, the GeForce GTX 470M can assist in general calculations. For example, the stream processor can  encode videos considerably faster than certain high-end CPUs. Furthermore, physics calculations can be done by the GPU using PhysX (e.g. supported by Mafia 2 or Metro 2033). SLI systems can also dedicate a single card for PhysX calculations.

According to Nvidia, support for 3D Vision on the GTX graphics cards is also new. It enables the laptop to send 3D contents (3D games, 3D Web Streaming, 3D photos, 3D Blu-Rays) to a built-in 3D enabled screen or an external 3D TV (only if supported by the laptop manufacturer).

Unofficially, the power consumption of the GeForce GTX 470M should be about 75 Watt (TDP including the MXM board and memory), which is about the level of the Mobility Radeon HD 5870. Therefore, the SLI system needs 2x75 Watt and therefore a lot less than the GTX 480M SLI with 2x100W. Without load, the chip is clocked at 50/100 MHz (chip/shader) in 2D respectively 200/400 in 3D mode to save power.

Compared to desktop graphics cards, the GTX 470M SLI combination is most similar in performance to a GTS 450 SLI combo, as the desktop GTX 470 is significantly faster.

NVIDIA GeForce GTX 460M

► remove NVIDIA GeForce GTX 460M

The NVIDIA GeForce GTX 460M is a high-end laptop graphics card released in 2010. It is based on the GF106 core as part of the Fermi architecture. As a result, the GPU supports DirectX 11 and OpenGL 4.0. In contrast to the GT 445M, which only features 144 core, the GTX 460M offers all the 192 shader cores of the GF106. The faster GTX 470M is based on the GF104 and offers even more shader cores at 288.

GF106 architecture

The GF106 core of the GTX 460M is related to the GF100 core of the GeFore GTX 480M and offers 192 shaders and a 192 Bit memory bus for GDDR5. Except for the memory controllers, the GF106 can basically be considered a halved GF104. Therefore, the architecture is not comparable to the old GT215 (e.g., GeForce GTS 350M) or GT216 (e.g., GeForce GT 330M) cores. Unlike the GF100, the smaller GF104, GF106, and GF108 cores have not only been reduced in size, but have also been considerably modified. In contrast to the GF100, which was designed for professional applications, these chips target the consumer market. They feature more shaders (3x16 instead of 2x16), more texture units (8 instead of 4) and SFUs per streaming multi-processor (SM). As there are still only 2 warp schedulers (versus 3 shader groups), Nvidia now uses superscalar execution to use the higher amount of shaders per SM more efficiently. In theory, the shaders can thereby be utilized more effectively and the performance per core can be improved. 

However, in worst case scenarios the performance can also be worse than of the GF100 and its predecessors. The ECC memory protection, which is important for professional applications, was completely omitted and the FP64 hardware shortened (only 1/3 of the shader are FP64-capable and therewith only 1/12 of the FP32’s performance). Because of these cutbacks, the size of the SM  grew only by 25% despite the higher number of shaders and larger warp schedulers with superscalar dispatch capabilities. Due to the different shader architectures and the higher clock rate of the shader domain, the core count of the GTX 460M cannot be directly compared to AMD cores of the Radeon 5000 series (e.g. HD 5850).

Detailed information on the GF104 architecture (and by extension also the GF106 and GF108) can be found in the desktop GTX 460 article by Anandtech.

Performance

Because the GeForce GTX 460M features a new architecture, the performance is not comparable to older chips with a similar core count. In contrast to the Radeon HD 5850, which could optionally use DDR3 memory, the 192 Bit memory bus of the GTX 460M is combined with GDDR5. Furthermore, the Fermi based chips offer a higher Tessellation performance than DX11 chips of the Radeon HD 5000 series.

We ran a set of benchmarks on an early pre-sample of a Toshiba Qosmio X500 with a 740QM CPU. In the synthetic benchmarks, the GTX 460M was on par with the DDR3 based Mobility Radeon HD 5850. In actual game benchmarks and tests, the performance was better than a HD 5850 with GDDR5 on average. In some cases (e.g., Unigine Heaven 2.1 and Dirt 2 Demo), the card even beat a Mobility Radeon HD 5870. On average, the GTX 480M was about 8-18% faster. The detailed benchmark and gaming results (including charts) can be found below.

Features

A novelty of the GF104/106/108 chips is the support for Bitstream HD Audio (Blu-Ray) output via HDMI. Similar to the Radeon HD 5850, the GTX 460M can transfer Dolby True HD and DTS-HD bitstream without quality loss to a HiFi receiver.

The GTX460M offers PureVideo HD technology for video decoding. The included Video Processor 4 (VP4) supports feature set C and therefore the GPU 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). The X500 notebook tester was able to decode the VC-1 encoded Elephants Dream video with about 3-6% CPU load (according to the task manager). The H.264 coded Big Buck Bunny video was played back with 1-3% CPU load (both 1080p videos).

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

Through CUDA, OpenCL, and DirectCompute 2.1 support, the GeForce GTX 460M can be of use in 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., Mafia 2 or Metro 2033). For example, the X500’s GPU ran Fluidmark more than 3x faster than its CPU (36 versus 11 fps) in our tests.

According to Nvidia,  3D Vision is supported on the GTX graphics cards. It 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. 

Unofficially, the power consumption of the GeForce GTX 460M should be about 72 Watt (TDP including the MXM board and memory), which is about the level of the Mobility Radeon HD 5850 - 5870. If not under load, the chip is clocked at 50/100 MHz (chip/shader) and 200/400 in 2D mode and 3D mode, respectively, to save power. Furthermore, the 400M series supports Optimus to automatically switch between the integrated graphics card from Intel and the Nvidia GPU. However, its implementation is dependent on the manufacturer. As current (2010) quad-cores don’t house an integrated GPU, we won’t see many Optimus designs with a GTX 460M GPU before the launch of Sandy Bridge in 2011.

The similarly named desktop GeForce GTX 460 is based on the GF104 chip and offers more shader cores at 336. Therefore, it is significantly faster than the GTX 460M and even the GTX 470M.

NVIDIA GeForce GTX 470M SLINVIDIA GeForce GTX 460M
ManufacturerNVIDIANVIDIA
GeForce GTX 400M Series
GeForce GTX 485M SLI compare 768 @ 0.58 GHz256 Bit @ 1500 MHz
GeForce GTX 470M SLI 576 @ 0.54 GHz192 Bit @ 1250 MHz
GeForce GTX 480M SLI compare 704 @ 0.43 GHz256 Bit @ 1200 MHz
GeForce GTX 460M SLI compare 384 @ 0.68 GHz192 Bit @ 1250 MHz
GeForce GTX 485M compare 384 @ 0.58 GHz256 Bit @ 1500 MHz
GeForce GTX 470M compare 288 @ 0.54 GHz192 Bit @ 1250 MHz
GeForce GTX 480M compare 352 @ 0.43 GHz256 Bit @ 1200 MHz
GeForce GTX 460M 192 @ 0.68 GHz192 Bit @ 1250 MHz
GeForce GTX 485M SLI compare 768 @ 0.58 GHz256 Bit @ 1500 MHz
GeForce GTX 470M SLI 576 @ 0.54 GHz192 Bit @ 1250 MHz
GeForce GTX 480M SLI compare 704 @ 0.43 GHz256 Bit @ 1200 MHz
GeForce GTX 460M SLI compare 384 @ 0.68 GHz192 Bit @ 1250 MHz
GeForce GTX 485M compare 384 @ 0.58 GHz256 Bit @ 1500 MHz
GeForce GTX 470M compare 288 @ 0.54 GHz192 Bit @ 1250 MHz
GeForce GTX 480M compare 352 @ 0.43 GHz256 Bit @ 1200 MHz
GeForce GTX 460M 192 @ 0.68 GHz192 Bit @ 1250 MHz
CodenameN11E-GTN11E-GS
ArchitectureFermiFermi
Cores576 - unified192 - unified
Core535 MHz675 MHz
Shader1070 MHz1350 MHz
Memory1250 MHz1250 MHz
Bus192 Bit192 Bit
MemoryGDDR5GDDR5
Shared Memorynono
DirectXDirectX 11, 5.0DirectX 11, 5.0
Technology40 nm40 nm
Size2/32/3
Introduced01.11.2010 03.09.2010
Max. Memory1536 MB
FeaturesOptimus Support, PureVideo HD VP4, 3D Vision, Bitstream HD Audio, CUDA, DirectCompute, OpenCL, OpenGL 4.0, DirectX 11, SLI Supported
Manufacturerhttp://www.nvidia.com/object/product-gef...

3DMark 11 - 3DM11 Performance Score
4076 Points (11%)
min: 1788     avg: 1814     median: 1805 (5%)     max: 1861 Points
3DMark 11 - 3DM11 Performance GPU
4070 Points (7%)
min: 1598     avg: 1628     median: 1623 (3%)     max: 1692 Points
3DMark Vantage
3DM Vant. Perf. total + NVIDIA GeForce GTX 470M SLI
3DM Vant. Perf. total + NVIDIA GeForce GTX 460M
3DM Vant. Perf. GPU no PhysX + NVIDIA GeForce GTX 470M SLI
3DM Vant. Perf. GPU no PhysX + NVIDIA GeForce GTX 460M
3DMark 2001SE - 3DMark 2001 - Standard
min: 33339     avg: 34874     median: 34874 (36%)     max: 36409 Points
3DMark 03 - 3DMark 03 - Standard
69012 Points (36%)
min: 33712     avg: 35178     median: 35451 (19%)     max: 36383 Points
3DMark 05 - 3DMark 05 - Standard
25241 Points (37%)
min: 17886     avg: 20171     median: 21131 (31%)     max: 21679 Points
3DMark 06 3DMark 06 - Standard 1280x1024 + NVIDIA GeForce GTX 470M SLI
3DMark 06 - Standard 1280x1024 + NVIDIA GeForce GTX 460M
3DMark 06 - Score Unknown Settings + NVIDIA GeForce GTX 460M
Unigine Heaven 2.1 - Heaven 2.1 high
57.1 fps (11%)
min: 23.5     avg: 24     median: 23.9 (4%)     max: 24.7 fps
SPECviewperf 11
specvp11 snx-01 + NVIDIA GeForce GTX 470M SLI
specvp11 snx-01 + NVIDIA GeForce GTX 460M
specvp11 tcvis-02 + NVIDIA GeForce GTX 470M SLI
specvp11 tcvis-02 + NVIDIA GeForce GTX 460M
specvp11 sw-02 + NVIDIA GeForce GTX 470M SLI
specvp11 sw-02 + NVIDIA GeForce GTX 460M
specvp11 proe-05 + NVIDIA GeForce GTX 470M SLI
specvp11 proe-05 + NVIDIA GeForce GTX 460M
specvp11 maya-03 + NVIDIA GeForce GTX 470M SLI
specvp11 maya-03 + NVIDIA GeForce GTX 460M
specvp11 lightwave-01 + NVIDIA GeForce GTX 470M SLI
specvp11 lightwave-01 + NVIDIA GeForce GTX 460M
specvp11 ensight-04 + NVIDIA GeForce GTX 470M SLI
specvp11 ensight-04 + NVIDIA GeForce GTX 460M
specvp11 catia-03 + NVIDIA GeForce GTX 470M SLI
specvp11 catia-03 + NVIDIA GeForce GTX 460M
Windows 7 Experience Index - Win7 Gaming graphics
7.8 Points (99%)
min: 6.9     avg: 7     median: 7.1 (90%)     max: 7.1 Points
Windows 7 Experience Index - Win7 Graphics
7.8 Points (99%)
min: 5.7     avg: 6.9     median: 7.1 (90%)     max: 7.1 Points
Cinebench R10 Cinebench R10 Shading (32bit) + NVIDIA GeForce GTX 470M SLI
Cinebench R10 Shading (32bit) + NVIDIA GeForce GTX 460M
Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit + NVIDIA GeForce GTX 470M SLI
Cinebench R11.5 OpenGL 64 Bit + NVIDIA GeForce GTX 460M

Average Benchmarks NVIDIA GeForce GTX 470M SLI → 100% n=20

Average Benchmarks NVIDIA GeForce GTX 460M → 77% n=20

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

Dirt 3

Dirt 3

2011
low 800x600
GeForce GTX 460M:
189.4  fps
med. 1024x768
GeForce GTX 460M:
108  fps
high 1360x768
GeForce GTX 460M:
73.6  fps
Crysis 2

Crysis 2

2011
low 800x600
GeForce GTX 460M:
102.9 fps 106 fps ~ 104 fps
med. 1024x768
GeForce GTX 460M:
70.8 fps 71.9 fps ~ 71 fps
high 1366x768
GeForce GTX 460M:
51.4 fps 53.2 fps ~ 52 fps
ultra 1920x1080
GeForce GTX 460M:
17.8 fps 18.1 fps ~ 18 fps
low 800x600
100%
GeForce GTX 470M SLI:
83.5 fps  fps
100%
GeForce GTX 460M:
83.7  fps
med. 1024x768
100%
GeForce GTX 470M SLI:
77.3 fps  fps
101%
GeForce GTX 460M:
78.2  fps
high 1360x768
100%
GeForce GTX 470M SLI:
77.3 fps  fps
96%
GeForce GTX 460M:
58.5 fps 75.8 86.3 fps ~ 74 fps
ultra 1920x1080
100%
GeForce GTX 470M SLI:
61.4 fps  fps
88%
GeForce GTX 460M:
47.2 fps 47.8 fps 55.7 55.7 fps 56.5 fps 59.3 fps ~ 54 fps
Fifa 11

Fifa 11

2010
low 800x600
100%
GeForce GTX 470M SLI:
539.4  fps
112%
GeForce GTX 460M:
542.8 664.4 ~ 604 fps
med. 1024x768
100%
GeForce GTX 470M SLI:
336  fps
93%
GeForce GTX 460M:
301.6 320.6 ~ 311 fps
high 1360x768
100%
GeForce GTX 470M SLI:
242  fps
86%
GeForce GTX 460M:
194 fps 222.6 ~ 208 fps
ultra 1920x1080
100%
GeForce GTX 470M SLI:
151.2  fps
87%
GeForce GTX 460M:
123.5 130 fps 132.1 fps 133 fps 136.2 fps 136.3 ~ 132 fps
Mafia 2

Mafia 2

2010
low 800x600
100%
GeForce GTX 470M SLI:
124.4  fps
59%
GeForce GTX 460M:
53.6 92.6 ~ 73 fps
med. 1024x768
100%
GeForce GTX 470M SLI:
114  fps
52%
GeForce GTX 460M:
50.2 67.4 ~ 59 fps
high 1360x768
100%
GeForce GTX 470M SLI:
103.9  fps
52%
GeForce GTX 460M:
46.7 51.2 56.3 62.3 fps ~ 54 fps
ultra 1920x1080
100%
GeForce GTX 470M SLI:
76.6  fps
46%
GeForce GTX 460M:
32.9 33.7 33.9 34 34.4 34.7 fps 34.8 fps 39.2 fps ~ 35 fps
low 1024x768
100%
GeForce GTX 470M SLI:
280 fps  fps
69%
GeForce GTX 460M:
172 193 fps 216.6 ~ 194 fps
med. 1360x768
100%
GeForce GTX 470M SLI:
83.3 fps  fps
89%
GeForce GTX 460M:
66 73 fps 83.5 fps ~ 74 fps
high 1360x768
100%
GeForce GTX 470M SLI:
73.9 fps  fps
85%
GeForce GTX 460M:
57 61 fps 65.4 fps 68.4 fps ~ 63 fps
ultra 1920x1080
100%
GeForce GTX 470M SLI:
50.3 fps  fps
70%
GeForce GTX 460M:
31.4 fps 31.5 fps 31.6 fps 31.9 32 fps 34.5 fps 36 47.3 ~ 35 fps
low 800x600
100%
GeForce GTX 470M SLI:
136 fps  fps
75%
GeForce GTX 460M:
88 115.8 ~ 102 fps
med. 1360x768
100%
GeForce GTX 470M SLI:
108.1 fps  fps
50%
GeForce GTX 460M:
53.1 fps 54 55.5 fps ~ 54 fps
high 1600x900
100%
GeForce GTX 470M SLI:
65.5 fps  fps
44%
GeForce GTX 460M:
24.3 fps 25.2 fps 30 30 fps 35.6 ~ 29 fps
ultra 1920x1080
100%
GeForce GTX 470M SLI:
23 fps  fps
43%
GeForce GTX 460M:
9 9.3 fps 9.4 fps 9.5 fps 9.6 fps 9.6 9.9 fps 10.5 fps 12.7 ~ 10 fps
low 1024x768
100%
GeForce GTX 470M SLI:
152.5 fps  fps
55%
GeForce GTX 460M:
80 87.3 ~ 84 fps
med. 1366x768
100%
GeForce GTX 470M SLI:
134.5 fps  fps
50%
GeForce GTX 460M:
65 68.9 ~ 67 fps
high 1366x768
100%
GeForce GTX 470M SLI:
114.9 fps  fps
50%
GeForce GTX 460M:
53.5 54.2 fps 57.2 fps 58 59.6 fps 60.6 fps ~ 57 fps
ultra 1920x1080
100%
GeForce GTX 470M SLI:
69.2 fps  fps
43%
GeForce GTX 460M:
27.1 29 fps 29.3 29.6 30.1 fps 30.1 fps 31 31.6 fps 32 fps ~ 30 fps
low 800x600
100%
GeForce GTX 470M SLI:
276.5 fps  fps
73%
GeForce GTX 460M:
201.9  fps
med. 1024x768
100%
GeForce GTX 470M SLI:
163.9 fps  fps
45%
GeForce GTX 460M:
73.2  fps
high 1366x768
100%
GeForce GTX 470M SLI:
150.2 fps  fps
42%
GeForce GTX 460M:
58.5 fps 62.5 68.3 fps ~ 63 fps
ultra 1920x1080
100%
GeForce GTX 470M SLI:
104.4 fps  fps
43%
GeForce GTX 460M:
41.3 fps 45.2 fps 45.4 45.9 46 fps