GeForce GTX 280 vs Radeon R7 250

Intro

Compare all of that to the Radeon R7 250, which has GPU core speed of 1000 MHz, and 1024 MB of GDDR5 RAM set to run at 1150 MHz through a 128-bit bus. It also is made up of 384 Stream Processors, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce GTX 280		236 Watts
	Difference: 171 Watts (263%)

Memory Bandwidth

In theory, the GeForce GTX 280 should perform much faster than the Radeon R7 250 overall. (explain)

GeForce GTX 280		141696 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 68096 (93%)

Texel Rate

The GeForce GTX 280 will be a lot (approximately 101%) faster with regards to AF than the Radeon R7 250. (explain)

GeForce GTX 280		48160 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 24160 (101%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 280 is the winner, by far. (explain)

GeForce GTX 280		19264 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 11264 (141%)

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 max amount of data (measured in megabytes per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of 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 higher this number, the better the 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 most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. 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 many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.