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GeForce GTX 780 Ti vs Radeon R7 250X 2GB

Intro

The GeForce GTX 780 Ti makes use of a 28 nm design. nVidia has clocked the core speed at 875 MHz. The GDDR5 memory is set to run at a speed of 1750 MHz on this particular model. It features 2880 SPUs along with 240 Texture Address Units and 48 ROPs.

Compare that to the Radeon R7 250X 2GB, which has a clock speed of 1000 MHz and a GDDR5 memory frequency of 1125 MHz. It also uses a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB 95 Watts
GeForce GTX 780 Ti 250 Watts
Difference: 155 Watts (163%)

Memory Bandwidth

In theory, the GeForce GTX 780 Ti should perform a lot faster than the Radeon R7 250X 2GB in general. (explain)

GeForce GTX 780 Ti 336000 MB/sec
Radeon R7 250X 2GB 72000 MB/sec
Difference: 264000 (367%)

Texel Rate

The GeForce GTX 780 Ti will be a lot (approximately 425%) more effective at AF than the Radeon R7 250X 2GB. (explain)

GeForce GTX 780 Ti 210000 Mtexels/sec
Radeon R7 250X 2GB 40000 Mtexels/sec
Difference: 170000 (425%)

Pixel Rate

The GeForce GTX 780 Ti will be much (more or less 163%) more effective at AA than the Radeon R7 250X 2GB, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 780 Ti 42000 Mpixels/sec
Radeon R7 250X 2GB 16000 Mpixels/sec
Difference: 26000 (163%)

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 GTX 780 Ti

Amazon.com

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Radeon R7 250X 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 GTX 780 Ti Radeon R7 250X 2GB
Manufacturer nVidia AMD
Year November 2013 February 2014
Code Name GK110 Cape Verde XT
Memory 3072 MB 2048 MB
Core Speed 875 MHz 1000 MHz
Memory Speed 7000 MHz 4500 MHz
Power (Max TDP) 250 watts 95 watts
Bandwidth 336000 MB/sec 72000 MB/sec
Texel Rate 210000 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 42000 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 2880 640
Texture Mapping Units 240 40
Render Output Units 48 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 7080 million 1500 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.2
OpenGL Version OpenGL 4.4 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, 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 most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 780 Ti

Amazon.com

Check prices at:

Radeon R7 250X 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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