Geforce GTX 680 vs Radeon R7 250

Intro

Compare those specifications to the Radeon R7 250, which has a clock frequency of 1000 MHz and a GDDR5 memory speed of 1150 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Geforce GTX 680		7650 points
Radeon R7 250		1836 points
	Difference: 5814 (317%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Geforce GTX 680		195 Watts
	Difference: 130 Watts (200%)

Memory Bandwidth

Performance-wise, the Geforce GTX 680 should theoretically be much better than the Radeon R7 250 in general. (explain)

Geforce GTX 680		192256 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 118656 (161%)

Texel Rate

The Geforce GTX 680 should be a lot (more or less 437%) more effective at texture filtering than the Radeon R7 250. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 104768 (437%)

Pixel Rate

The Geforce GTX 680 should be quite a bit (approximately 302%) better at AA than the Radeon R7 250, and also should be able to handle higher resolutions without slowing down too much. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 24192 (302%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.