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GeForce GTS 250 1GB vs GeForce GTX 660 Ti

Intro

The GeForce GTS 250 1GB comes with core clock speeds of 738 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR3 RAM. It features 128 SPUs as well as 64 TAUs and 16 Rasterization Operator Units.

Compare all of that to the GeForce GTX 660 Ti, which has a core clock speed of 915 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 192-bit memory bus, and makes use of a 28 nm design. It features 1344 SPUs, 112 TAUs, and 24 Raster Operation 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

In theory, the GeForce GTX 660 Ti should perform a lot faster than the GeForce GTS 250 1GB overall. (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 (approximately 117%) faster with regards to AF 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 quite a bit (more or less 86%) better at anti-aliasing than the GeForce GTS 250 1GB, and able to handle higher screen resolutions more effectively. (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 maximum amount of information (measured in MB per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially 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 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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