Radeon R5 M330 vs Radeon R7 M265

Intro

Compare those specifications to the Radeon R7 M265, which comes with a clock speed of 725 MHz and a DDR3 memory speed of 1000 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is comprised of 384 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 M265 should be 122% faster than the Radeon R5 M330 in general, due to its higher bandwidth. (explain)

Radeon R7 M265		32000 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 17600 (122%)

Texel Rate

The Radeon R5 M330 is a small bit (approximately 18%) better at texture filtering than the Radeon R7 M265. (explain)

Radeon R5 M330		20600 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 3200 (18%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R5 M330 is superior to the Radeon R7 M265, and very much so. (explain)

Radeon R5 M330		8240 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 2440 (42%)

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 (measured in megabytes per second) that can be transferred over 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 memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is worked out 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in a 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 - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.