Radeon R5 M330 vs Radeon R7 M265

Intro

Compare that to the Radeon R7 M265, which makes use of a 28 nm design. AMD has clocked the core speed at 725 MHz. The DDR3 memory runs at a frequency of 1000 MHz on this card. It features 384 SPUs along with 24 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R7 M265 should theoretically be much faster than the Radeon R5 M330 overall. (explain)

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

Texel Rate

The Radeon R5 M330 will be a bit (about 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

The Radeon R5 M330 should be much (approximately 42%) more effective at anti-aliasing than the Radeon R7 M265, and able to handle higher screen resolutions while still performing well. (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 maximum amount of information (measured in MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.