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GeForce GTS 250 512MB vs GeForce GTX 650 Ti 2GB

Intro

The GeForce GTS 250 512MB features a core clock speed of 738 MHz and a GDDR3 memory frequency of 1100 MHz. It also uses a 256-bit memory bus, and uses a 65/55 nm design. It is made up of 128 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

Compare all that to the GeForce GTX 650 Ti 2GB, which features clock speeds of 928 MHz on the GPU, and 1350 MHz on the 2048 MB of GDDR5 RAM. It features 768 SPUs along with 64 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB 110 Watts
GeForce GTS 250 512MB 145 Watts
Difference: 35 Watts (32%)

Memory Bandwidth

In theory, the GeForce GTX 650 Ti 2GB should perform quite a bit faster than the GeForce GTS 250 512MB overall. (explain)

GeForce GTX 650 Ti 2GB 86400 MB/sec
GeForce GTS 250 512MB 70400 MB/sec
Difference: 16000 (23%)

Texel Rate

The GeForce GTX 650 Ti 2GB will be quite a bit (about 26%) more effective at AF than the GeForce GTS 250 512MB. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
GeForce GTS 250 512MB 47232 Mtexels/sec
Difference: 12160 (26%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 650 Ti 2GB is superior to the GeForce GTS 250 512MB, and very much so. (explain)

GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
GeForce GTS 250 512MB 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 512MB

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 512MB GeForce GTX 650 Ti 2GB
Manufacturer nVidia nVidia
Year March 3, 2009 October 2012
Code Name G92a/b GK106
Memory 512 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 max amount of information (measured in MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once 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 anti-aliasing, High Dynamic Range and high 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 by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 250 512MB

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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