GeForce GTX 980 vs Radeon R7 250

Intro

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

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 980		13552 points
Radeon R7 250		1836 points
	Difference: 11716 (638%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce GTX 980		165 Watts
	Difference: 100 Watts (154%)

Memory Bandwidth

In theory, the GeForce GTX 980 should perform quite a bit faster than the Radeon R7 250 in general. (explain)

GeForce GTX 980		224000 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 150400 (204%)

Texel Rate

The GeForce GTX 980 is quite a bit (approximately 501%) better at anisotropic filtering than the Radeon R7 250. (explain)

GeForce GTX 980		144128 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 120128 (501%)

Pixel Rate

The GeForce GTX 980 will be quite a bit (about 801%) better at FSAA than the Radeon R7 250, and will be able to handle higher resolutions better. (explain)

GeForce GTX 980		72064 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 64064 (801%)

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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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