Geforce GTX 780 vs Radeon R7 250

Intro

Compare those specs to the Radeon R7 250, which comes with a GPU core clock speed of 1000 MHz, and 1024 MB of GDDR5 RAM running at 1150 MHz through a 128-bit bus. It also is comprised of 384 SPUs, 24 Texture Address Units, 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 780		10082 points
Radeon R7 250		1836 points
	Difference: 8246 (449%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Geforce GTX 780		250 Watts
	Difference: 185 Watts (285%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 780 is 292% faster than the Radeon R7 250 in general, because of its greater bandwidth. (explain)

Geforce GTX 780		288384 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 214784 (292%)

Texel Rate

The Geforce GTX 780 will be much (approximately 590%) faster with regards to anisotropic filtering than the Radeon R7 250. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 141696 (590%)

Pixel Rate

The Geforce GTX 780 should be quite a bit (more or less 418%) faster with regards to FSAA than the Radeon R7 250, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 33424 (418%)

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 information (in units of megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics 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 amount of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.