GeForce 8500 GT vs Radeon R7 250X

Intro

Compare those specs to the Radeon R7 250X, which features a clock frequency of 1000 MHz and a GDDR5 memory speed of 1125 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT		45 Watts
Radeon R7 250X		95 Watts
	Difference: 50 Watts (111%)

Memory Bandwidth

The Radeon R7 250X, in theory, should be quite a bit faster than the GeForce 8500 GT in general. (explain)

Radeon R7 250X		72000 MB/sec
GeForce 8500 GT		12800 MB/sec
	Difference: 59200 (463%)

Texel Rate

The Radeon R7 250X is quite a bit (approximately 1011%) better at texture filtering than the GeForce 8500 GT. (explain)

Radeon R7 250X		40000 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 36400 (1011%)

Pixel Rate

The Radeon R7 250X is a lot (about 789%) more effective at anti-aliasing than the GeForce 8500 GT, and able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R7 250X		16000 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 14200 (789%)

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 (counted in megabytes per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.