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GeForce GTS 250 1GB vs GeForce GTX 460 2GB

Intro

The GeForce GTS 250 1GB uses a 65/55 nm design. nVidia has clocked the core frequency at 738 MHz. The GDDR3 memory runs at a frequency of 1100 MHz on this particular card. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Compare those specifications to the GeForce GTX 460 2GB, which has core speeds of 675 MHz on the GPU, and 900 MHz on the 2048 MB of GDDR5 memory. It features 336 SPUs along with 56 Texture Address Units and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 250 1GB 145 Watts
GeForce GTX 460 2GB 160 Watts
Difference: 15 Watts (10%)

Memory Bandwidth

Performance-wise, the GeForce GTX 460 2GB should in theory be a lot better than the GeForce GTS 250 1GB in general. (explain)

GeForce GTX 460 2GB 115200 MB/sec
GeForce GTS 250 1GB 70400 MB/sec
Difference: 44800 (64%)

Texel Rate

The GeForce GTS 250 1GB will be quite a bit (about 25%) more effective at texture filtering than the GeForce GTX 460 2GB. (explain)

GeForce GTS 250 1GB 47232 Mtexels/sec
GeForce GTX 460 2GB 37800 Mtexels/sec
Difference: 9432 (25%)

Pixel Rate

The GeForce GTX 460 2GB will be much (more or less 83%) more effective at AA than the GeForce GTS 250 1GB, and able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 460 2GB 21600 Mpixels/sec
GeForce GTS 250 1GB 11808 Mpixels/sec
Difference: 9792 (83%)

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 1GB

Amazon.com

Check prices at:

GeForce GTX 460 2GB

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 1GB GeForce GTX 460 2GB
Manufacturer nVidia nVidia
Year March 3, 2009 July 2010
Code Name G92a/b GF104
Memory 1024 MB 2048 MB
Core Speed 738 MHz 675 MHz
Memory Speed 2200 MHz 3600 MHz
Power (Max TDP) 145 watts 160 watts
Bandwidth 70400 MB/sec 115200 MB/sec
Texel Rate 47232 Mtexels/sec 37800 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 21600 Mpixels/sec
Unified Shaders 128 336
Texture Mapping Units 64 56
Render Output Units 16 32
Bus Type GDDR3 GDDR5
Bus Width 256-bit 256-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: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 250 1GB

Amazon.com

Check prices at:

GeForce GTX 460 2GB

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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