NVIDIA GeForce GTX 260M SLI vs NVIDIA GeForce GTX 285M SLI

NVIDIA GeForce GTX 260M SLI

► remove NVIDIA GeForce GTX 260M SLI

The Nvidia GeForce GTX 260M SLI is a combination of two Nvidia GeForce GTX 260M graphics cards for laptops linked together in SLI mode. The combination can be up to 40% faster than a single GTX 260M if given the proper game or driver support. In fact,some games may even run slower under SLI than with a single 260M if driver support is poor. Regardless, current consumption is twice as high as a single 260M. Notably, Nvidia drivers support the deactivation of SLI to save power. This is in contrast to the Catalyst drivers of the 4870 X2 at the time of our review.

The graphics memory of both cards can't be added and compared to single cards, as each card stores the same information. Therefore, a GTX 260M SLI with 2x512 graphics memory only counts as 512 MB for games.

As all SLI combinations, the GeForce 260M SLI may suffer from noticeable micro stuttering at frame rates between 20 to 30 fps. This is due to the inconsistent delays between subsequent frames being rendered and shown onscreen. As a result, an SLI combination may need higher frame rates for fluent gameplay.

Similar to other cards with DirectX 10 capabilities, the GeForce GTX 260M SLI combination renders 3D images using "Unified Shaders". Dedicated pixel shaders and vertex shaders have been dropped in favor of 2x112 stream processors for rendering graphic work that would have normally been done by specialized pixel and vertex shaders. Furthermore, the shader units are higher clocked than the chip at 1375 MHz.

The performance of the GTX 260M SLI is in the region of a single GTX 260M, but can be about 40 percent higher depending on application and driver support. A single GTX 260M is only a bit faster than a 9800M GTX due to the higher clock speed. For current DirectX 10 games like Crysis, World in Conflict, Bioshock or Age of Conan, the performance of this graphics card is sufficient with medium and high details. Older games and less demanding ones run fluently with high resolutions and full details. The memory component is up to 2x1024 MB GDDR3 with speeds up to 950MHz in MXM 3.0 boards or up to 800 MHz in MXM 2.0 boards.

An advantage of the GeForce GTX 260M SLI is the integrated PureVideo HD video processor. As a result, it is able to decode/encode H.264-, VC-1-, MPEG2- and WMV9 video material that would have otherwise been processed by the CPU. This ultimately allows the CPU to concentrate more on other tasks and programs simultaneously.

Both chips also support PhysX and CUDA applications. A single GTX 260M can also be used to calculate PhysX effects if supported by the game or application.

HybridPower is a technique to choose between the integrated (if available) and dedicated graphics core for power-saving purposes. So far, this works only in Windows Vista. Up to now, the user had to use a tool to switch between the GPUs. In the near future, Nvidia intends to be able to switch GPUs automatically in the drivers (now known as Optimus Technology, which is not supported by the GTX 260M SLI). GeForceBoost is not supported with this card as there would be no performance gain if one were to combine the integrated GPU with the dedicated 460M SLI.

The current consumption of up to 2x75 = 150 Watts (including the MXM board and VRAM) allows the use of the SLI cards only in laptops with a strong cooling system. Therefore, the GTX 260M SLI can be found only in heavier and larger desktop replacement (DTR) notebooks.

Compared with desktop graphics cards, the performance of the GTX 260M SLI is about on par with the GeForce 9800 GT SLI (600/1500/900).

NVIDIA GeForce GTX 285M SLI

► remove NVIDIA GeForce GTX 285M SLI

The Nvidia GeForce GTX 285M SLI is a graphics solution that combines two Nvidia GeForce GTX 285M with an SLI connection. As not every game supports SLI efficiently, the performance increase compared to a single card is only about 0-40%. The most frequently used technique is Alternate Frame Rendering (AFR), where each card take turns rendering a frame in an alternating manner. Therefore, the SLI solution may suffer from noticeable micro stuttering at frame-rates between 20-30 fps (due to display irregularities between each rendered frame).

Each of the two GeForce GTX 285M is based on the G92b core and is therefore produced in 55nm. It features the full 128 pipelines of the G92b core and is therefore comparable to the desktop 9800M GTX+ and not the desktop GTX 280.

The Nvidia GeForce GTX 285M SLI in laptops with Core 2 Duo CPUs is bundled with the GeForce 9400M G chipset and therefore supports HybridPower (if the manufacturer enables it). With HybridPower, both GTX cards can be disabled and only the chipset graphics core can run, leading to improved battery life (and possibly less fan noise). Modern Core i7 laptops are using an Intel chipset and do not support HybridPower.

Since there are two GTX 285M cards active in SLI, the electrical current consumption and exhumed heat are about twice as much as what a single GTX 285M can produce. Due to the large power and cooling requirements, this SLI combination can only be found in large DTR laptops (like the Alienware M17x).

NVIDIA GeForce GTX 260M SLINVIDIA GeForce GTX 285M SLI
ManufacturerNVIDIANVIDIA
GeForce GTX 200M Series
GeForce GTX 285M SLI 256 @ 576 MHz256 Bit @ 1020 MHz
GeForce GTX 280M SLI (compare) 256 @ 585 MHz256 Bit @ 950 MHz
GeForce GTX 260M SLI 224 @ 550 MHz256 Bit @ 950 MHz
GeForce GTX 285M (compare) 128 @ 576 MHz256 Bit @ 1020 MHz
GeForce GTX 280M (compare) 128 @ 585 MHz256 Bit @ 950 MHz
GeForce GTX 260M (compare) 112 @ 550 MHz256 Bit @ 950 MHz
GeForce GTX 285M SLI 256 @ 576 MHz256 Bit @ 1020 MHz
GeForce GTX 280M SLI (compare) 256 @ 585 MHz256 Bit @ 950 MHz
GeForce GTX 260M SLI 224 @ 550 MHz256 Bit @ 950 MHz
GeForce GTX 285M (compare) 128 @ 576 MHz256 Bit @ 1020 MHz
GeForce GTX 280M (compare) 128 @ 585 MHz256 Bit @ 950 MHz
GeForce GTX 260M (compare) 112 @ 550 MHz256 Bit @ 950 MHz
CodenameNB9E-GTXN10E-GTX
ArchitectureG9xG9x
224 - 256 -
Core550 MHz576 MHz
Shader1375 MHz1500 MHz
Memory950 MHz1020 MHz
Bus256 Bit256 Bit
MemoryGDDR3GDDR3
Max. Memory2048 MB2048 (2x1024) MB
nono
DirectXDirectX 10, 4.0DirectX 10, 4.0
Transistors1508 Million1508 Million
Technology55 nm55 nm
FeaturesHybridPower, PureVideo HD, CUDA, PhysX readyHybridPower, PureVideo HD, CUDA, PhysX ready
Size
Introduced02.03.2009 02.03.2009
MXM 3MXM 3
Manufacturerhttp://www.nvidia.com/object/product_gef...http://www.nvidia.com/object/product_gef...

3DMark Vantage
P Result 1280x1024 + NVIDIA GeForce GTX 260M SLI
P Result 1280x1024 + NVIDIA GeForce GTX 285M SLI
P GPU no PhysX 1280x1024 + NVIDIA GeForce GTX 260M SLI
P GPU no PhysX 1280x1024 + NVIDIA GeForce GTX 285M SLI
3DMark 2001SE - Standard 1024x768
30910 Points (32%)
3DMark 03 - Standard 1024x768
min: 47633     avg: 49181.5     median: 49181 (26%)     max: 50730 Points
3DMark 05 - Standard 1024x768
min: 12820     avg: 14509.5     median: 14509 (27%)     max: 16199 Points
21611 Points (41%)
3DMark 06 Standard 1280x1024 + NVIDIA GeForce GTX 260M SLI
+ NVIDIA GeForce GTX 285M SLI
Windows 7 Experience Index - Gaming graphics
7.3 points (104%)
Windows 7 Experience Index - Graphics
7.3 points (104%)
Cinebench R10 Shading 32Bit + NVIDIA GeForce GTX 260M SLI
Shading 32Bit + NVIDIA GeForce GTX 285M SLI
Cinebench R11.5 OpenGL 64Bit + NVIDIA GeForce GTX 285M SLI

Average Benchmarks NVIDIA GeForce GTX 260M SLI → 100%

Average Benchmarks NVIDIA GeForce GTX 285M SLI → 118%

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

high 1366x768
GeForce GTX 285M SLI:
81.5  fps
ultra 1920x1080
GeForce GTX 285M SLI:
50.6  fps
GeForce GTX 285M SLI:
»
med. 1024x768
GeForce GTX 285M SLI:
118.1  fps
high 1366x768
GeForce GTX 285M SLI:
113.9  fps
ultra 1920x1080
GeForce GTX 285M SLI:
84.3  fps
GeForce GTX 285M SLI:
»
Risen

Risen

2009
med. 1024x768
GeForce GTX 285M SLI:
103.5  fps
high 1366x768
GeForce GTX 285M SLI:
84.7  fps
ultra 1920x1080
GeForce GTX 285M SLI:
58  fps
GeForce GTX 285M SLI:
»
Need for Speed Shift

Need for Speed Shift

2009
med. 1024x768
GeForce GTX 285M SLI:
86.2  fps
high 1366x768
GeForce GTX 285M SLI:
85.3  fps
ultra 1920x1080
GeForce GTX 285M SLI:
79.8  fps
GeForce GTX 285M SLI:
»
Colin McRae: DIRT 2

Colin McRae: DIRT 2

2009
med. 1024x768
GeForce GTX 285M SLI:
127.1  fps
high 1360x768
GeForce GTX 285M SLI:
103.7  fps
ultra 1920x1080
GeForce GTX 285M SLI:
69.9  fps
GeForce GTX 285M SLI:
»
Anno 1404

Anno 1404

2009
ultra 1280x1024
GeForce GTX 285M SLI:
89.4  fps
GeForce GTX 285M SLI:
»
F.E.A.R. 2

F.E.A.R. 2

2009
high 1280x1024
GeForce GTX 285M SLI:
127.5  fps
ultra 1920x1080
GeForce GTX 285M SLI:
87.7  fps
GeForce GTX 285M SLI:
»
Crysis - GPU Benchmark

Crysis - GPU Benchmark

2007
low 1024x768
100%
GeForce GTX 260M SLI:
102  fps
med. 1024x768
100%
GeForce GTX 260M SLI:
64  fps
116%
GeForce GTX 285M SLI:
74.2  fps
high 1024x768
100%
GeForce GTX 260M SLI:
51  fps
122%
GeForce GTX 285M SLI:
62  fps
ultra 1920x1080
GeForce GTX 285M SLI:
26.9  fps
GeForce GTX 260M SLI:
»
GeForce GTX 285M SLI:
»
Crysis - CPU Benchmark

Crysis - CPU Benchmark

2007
low 1024x768
100%
GeForce GTX 260M SLI:
132  fps
med. 1024x768
100%
GeForce GTX 260M SLI:
65  fps
114%
GeForce GTX 285M SLI:
73.9  fps
high 1024x768
100%
GeForce GTX 260M SLI:
52  fps
114%
GeForce GTX 285M SLI:
59.3  fps
ultra 1920x1080
GeForce GTX 285M SLI:
24.9  fps
GeForce GTX 260M SLI:
»
GeForce GTX 285M SLI:
»

Average Gaming NVIDIA GeForce GTX 260M SLI → 100%

Average Gaming NVIDIA GeForce GTX 285M SLI → 116%

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Redaktion, 2017-09- 8 (Update: 2017-09-11)