GeForce 9800 GTX vs Radeon R7 240

Intro

Compare all of that to the Radeon R7 240, which has a core clock frequency of 730 MHz and a DDR3 memory frequency of 900 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It is comprised of 320 SPUs, 20 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce 9800 GTX		140 Watts
	Difference: 110 Watts (367%)

Memory Bandwidth

In theory, the GeForce 9800 GTX is 144% faster than the Radeon R7 240 in general, because of its greater data rate. (explain)

GeForce 9800 GTX		70400 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 41600 (144%)

Texel Rate

The GeForce 9800 GTX will be much (approximately 196%) better at AF than the Radeon R7 240. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 28600 (196%)

Pixel Rate

The GeForce 9800 GTX should be quite a bit (more or less 85%) better at anti-aliasing than the Radeon R7 240, and able to handle higher screen resolutions while still performing well. (explain)

GeForce 9800 GTX		10800 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 4960 (85%)

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: Memory bandwidth is the max amount of information (measured in MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.