Radeon R7 240 vs Radeon R7 250X 2GB

Intro

Compare all of that to the Radeon R7 250X 2GB, which features GPU clock speed of 1000 MHz, and 2048 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also features 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon R7 250X 2GB		95 Watts
	Difference: 65 Watts (217%)

Memory Bandwidth

In theory, the Radeon R7 250X 2GB will be 150% faster than the Radeon R7 240 in general, due to its higher data rate. (explain)

Radeon R7 250X 2GB		72000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 43200 (150%)

Texel Rate

The Radeon R7 250X 2GB should be quite a bit (about 174%) faster with regards to AF than the Radeon R7 240. (explain)

Radeon R7 250X 2GB		40000 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 25400 (174%)

Pixel Rate

The Radeon R7 250X 2GB will be quite a bit (more or less 174%) better at AA than the Radeon R7 240, and able to handle higher resolutions better. (explain)

Radeon R7 250X 2GB		16000 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 10160 (174%)

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 (counted in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.