GeForce 9800 GTX vs Radeon R7 250

Intro

Compare all of that to the Radeon R7 250, which has core speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 RAM. It features 384 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce 9800 GTX		140 Watts
	Difference: 75 Watts (115%)

Memory Bandwidth

The Radeon R7 250 should in theory perform a bit faster than the GeForce 9800 GTX overall. (explain)

Radeon R7 250		73600 MB/sec
GeForce 9800 GTX		70400 MB/sec
	Difference: 3200 (5%)

Texel Rate

The GeForce 9800 GTX should be much (approximately 80%) better at anisotropic filtering than the Radeon R7 250. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 19200 (80%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce 9800 GTX is a better choice, by far. (explain)

GeForce 9800 GTX		10800 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 2800 (35%)

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 information (in units of megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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