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GeForce GTX 460 (OEM) vs GeForce GTX 650

Intro

The GeForce GTX 460 (OEM) makes use of a 40 nm design. nVidia has clocked the core speed at 650 MHz. The GDDR5 memory is set to run at a speed of 850 MHz on this particular model. It features 336 SPUs as well as 56 TAUs and 32 Rasterization Operator Units.

Compare those specs to the GeForce GTX 650, which uses a 28 nm design. nVidia has set the core frequency at 1058 MHz. The GDDR5 memory is set to run at a frequency of 1250 MHz on this specific card. It features 384 SPUs along with 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce GTX 460 (OEM) 150 Watts
Difference: 86 Watts (134%)

Memory Bandwidth

The GeForce GTX 460 (OEM) should in theory perform a lot faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 460 (OEM) 108800 MB/sec
GeForce GTX 650 80000 MB/sec
Difference: 28800 (36%)

Texel Rate

The GeForce GTX 460 (OEM) should be a small bit (approximately 8%) faster with regards to texture filtering than the GeForce GTX 650. (explain)

GeForce GTX 460 (OEM) 36400 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 2544 (8%)

Pixel Rate

The GeForce GTX 460 (OEM) is a lot (about 23%) more effective at full screen anti-aliasing than the GeForce GTX 650, and capable of handling higher screen resolutions better. (explain)

GeForce GTX 460 (OEM) 20800 Mpixels/sec
GeForce GTX 650 16928 Mpixels/sec
Difference: 3872 (23%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce GTX 460 (OEM)

Amazon.com

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GeForce GTX 650

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 460 (OEM) GeForce GTX 650
Manufacturer nVidia nVidia
Year October 2010 September 2012
Code Name GF104 GK107
Memory 1024 MB 1024 MB
Core Speed 650 MHz 1058 MHz
Memory Speed 3400 MHz 5000 MHz
Power (Max TDP) 150 watts 64 watts
Bandwidth 108800 MB/sec 80000 MB/sec
Texel Rate 36400 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 20800 Mpixels/sec 16928 Mpixels/sec
Unified Shaders 336 384
Texture Mapping Units 56 32
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 1300 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GTX 460 (OEM)

Amazon.com

Check prices at:

GeForce GTX 650

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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