Radeon R9 M265X vs Radeon R9 M295X

Intro

Compare all that to the Radeon R9 M295X, which features core speeds of 750 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M295X should in theory perform much faster than the Radeon R9 M265X in general. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 104000 (144%)

Texel Rate

The Radeon R9 M295X is much (about 317%) better at texture filtering than the Radeon R9 M265X. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 73000 (317%)

Pixel Rate

The Radeon R9 M295X will be a lot (approximately 161%) better at anti-aliasing than the Radeon R9 M265X, and should be able to handle higher resolutions more effectively. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 14800 (161%)

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 data (in units of MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory 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 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 calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, 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 chip can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs 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 fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.