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GeForce GTS 250 1GB vs GeForce GTX 650 Ti 2GB

Intro

The GeForce GTS 250 1GB features a GPU clock speed of 738 MHz, and the 1024 MB of GDDR3 memory is set to run at 1100 MHz through a 256-bit bus. It also features 128 Stream Processors, 64 Texture Address Units, and 16 ROPs.

Compare all of that to the GeForce GTX 650 Ti 2GB, which has GPU clock speed of 928 MHz, and 2048 MB of GDDR5 memory set to run at 1350 MHz through a 128-bit bus. It also is comprised of 768 Stream Processors, 64 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB 110 Watts
GeForce GTS 250 1GB 145 Watts
Difference: 35 Watts (32%)

Memory Bandwidth

In theory, the GeForce GTX 650 Ti 2GB should perform a lot faster than the GeForce GTS 250 1GB overall. (explain)

GeForce GTX 650 Ti 2GB 86400 MB/sec
GeForce GTS 250 1GB 70400 MB/sec
Difference: 16000 (23%)

Texel Rate

The GeForce GTX 650 Ti 2GB is quite a bit (more or less 26%) better at AF than the GeForce GTS 250 1GB. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
GeForce GTS 250 1GB 47232 Mtexels/sec
Difference: 12160 (26%)

Pixel Rate

The GeForce GTX 650 Ti 2GB should be quite a bit (more or less 26%) better at anti-aliasing than the GeForce GTS 250 1GB, and will be capable of handling higher screen resolutions better. (explain)

GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
GeForce GTS 250 1GB 11808 Mpixels/sec
Difference: 3040 (26%)

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 650 Ti 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 650 Ti 2GB
Manufacturer nVidia nVidia
Year March 3, 2009 October 2012
Code Name G92a/b GK106
Memory 1024 MB 2048 MB
Core Speed 738 MHz 928 MHz
Memory Speed 2200 MHz 5400 MHz
Power (Max TDP) 145 watts 110 watts
Bandwidth 70400 MB/sec 86400 MB/sec
Texel Rate 47232 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 128 768
Texture Mapping Units 64 64
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65/55 nm 28 nm
Transistors 754 million 2540 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: Bandwidth is the largest amount of information (measured in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core 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 fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTS 250 1GB

Amazon.com

Check prices at:

GeForce GTX 650 Ti 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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