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GeForce GTS 250 1GB vs GeForce GTX 660 Ti

Intro

The GeForce GTS 250 1GB makes use of a 65/55 nm design. nVidia has clocked the core frequency at 738 MHz. The GDDR3 RAM is set to run at a speed of 1100 MHz on this particular model. It features 128 SPUs along with 64 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the GeForce GTX 660 Ti, which features core clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1344 SPUs as well as 112 Texture Address Units and 24 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 250 1GB 145 Watts
GeForce GTX 660 Ti 150 Watts
Difference: 5 Watts (3%)

Memory Bandwidth

Performance-wise, the GeForce GTX 660 Ti should theoretically be quite a bit superior to the GeForce GTS 250 1GB in general. (explain)

GeForce GTX 660 Ti 144000 MB/sec
GeForce GTS 250 1GB 70400 MB/sec
Difference: 73600 (105%)

Texel Rate

The GeForce GTX 660 Ti is much (about 117%) better at texture filtering than the GeForce GTS 250 1GB. (explain)

GeForce GTX 660 Ti 102480 Mtexels/sec
GeForce GTS 250 1GB 47232 Mtexels/sec
Difference: 55248 (117%)

Pixel Rate

The GeForce GTX 660 Ti will be a lot (approximately 86%) more effective at FSAA than the GeForce GTS 250 1GB, and also capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 660 Ti 21960 Mpixels/sec
GeForce GTS 250 1GB 11808 Mpixels/sec
Difference: 10152 (86%)

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 660 Ti

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 660 Ti
Manufacturer nVidia nVidia
Year March 3, 2009 August 2012
Code Name G92a/b GK104
Memory 1024 MB 2048 MB
Core Speed 738 MHz 915 MHz
Memory Speed 2200 MHz 6000 MHz
Power (Max TDP) 145 watts 150 watts
Bandwidth 70400 MB/sec 144000 MB/sec
Texel Rate 47232 Mtexels/sec 102480 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 21960 Mpixels/sec
Unified Shaders 128 1344
Texture Mapping Units 64 112
Render Output Units 16 24
Bus Type GDDR3 GDDR5
Bus Width 256-bit 192-bit
Fab Process 65/55 nm 28 nm
Transistors 754 million 3540 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units by the core 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can 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 sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTS 250 1GB

Amazon.com

Check prices at:

GeForce GTX 660 Ti

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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