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GeForce GTS 250 1GB vs GeForce GTX 660 Ti

Intro

The GeForce GTS 250 1GB comes with a GPU clock speed of 738 MHz, and the 1024 MB of GDDR3 RAM runs at 1100 MHz through a 256-bit bus. It also is comprised of 128 Stream Processors, 64 TAUs, and 16 ROPs.

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

Display Graphs

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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

Theoretically speaking, the GeForce GTX 660 Ti should be 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 will be quite a bit (more or less 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 is a lot (more or less 86%) more effective at FSAA than the GeForce GTS 250 1GB, and capable of handling higher resolutions better. (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 largest amount of information (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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