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GeForce GTS 250 512MB vs GeForce GTX 460

Intro

The GeForce GTS 250 512MB uses a 65/55 nm design. nVidia has clocked the core frequency at 738 MHz. The GDDR3 RAM works at a speed of 1100 MHz on this particular model. It features 128 SPUs as well as 64 TAUs and 16 ROPs.

Compare all of that to the GeForce GTX 460, which makes use of a 40 nm design. nVidia has clocked the core frequency at 675 MHz. The GDDR5 RAM is set to run at a frequency of 900 MHz on this specific card. It features 336 SPUs along with 56 TAUs and 24 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 250 512MB 145 Watts
GeForce GTX 460 150 Watts
Difference: 5 Watts (3%)

Memory Bandwidth

Performance-wise, the GeForce GTX 460 should in theory be quite a bit better than the GeForce GTS 250 512MB in general. (explain)

GeForce GTX 460 86400 MB/sec
GeForce GTS 250 512MB 70400 MB/sec
Difference: 16000 (23%)

Texel Rate

The GeForce GTS 250 512MB should be quite a bit (about 25%) faster with regards to texture filtering than the GeForce GTX 460. (explain)

GeForce GTS 250 512MB 47232 Mtexels/sec
GeForce GTX 460 37800 Mtexels/sec
Difference: 9432 (25%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 460 is superior to the GeForce GTS 250 512MB, by a large margin. (explain)

GeForce GTX 460 16200 Mpixels/sec
GeForce GTS 250 512MB 11808 Mpixels/sec
Difference: 4392 (37%)

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 GTS 250 512MB

Amazon.com

Check prices at:

GeForce GTX 460

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.

Specifications

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Model GeForce GTS 250 512MB GeForce GTX 460
Manufacturer nVidia nVidia
Year March 3, 2009 July 2010
Code Name G92a/b GF104
Memory 512 MB 768 MB
Core Speed 738 MHz 675 MHz
Memory Speed 2200 MHz 3600 MHz
Power (Max TDP) 145 watts 150 watts
Bandwidth 70400 MB/sec 86400 MB/sec
Texel Rate 47232 Mtexels/sec 37800 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 16200 Mpixels/sec
Unified Shaders 128 336
Texture Mapping Units 64 56
Render Output Units 16 24
Bus Type GDDR3 GDDR5
Bus Width 256-bit 192-bit
Fab Process 65/55 nm 40 nm
Transistors 754 million 1950 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTS 250 512MB

Amazon.com

Check prices at:

GeForce GTX 460

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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