Radeon HD 4770 vs Radeon R5 M330

Intro

Compare those specs to the Radeon R5 M330, which makes use of a 28 nm design. AMD has set the core speed at 1030 MHz. The DDR3 RAM works at a speed of 900 MHz on this particular card. It features 320 SPUs along with 20 TAUs and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 4770 should perform quite a bit faster than the Radeon R5 M330 in general. (explain)

Radeon HD 4770		51200 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 36800 (256%)

Texel Rate

The Radeon HD 4770 should be a little bit (approximately 17%) faster with regards to AF than the Radeon R5 M330. (explain)

Radeon HD 4770		24000 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 3400 (17%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 4770 is the winner, by a large margin. (explain)

Radeon HD 4770		12000 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 3760 (46%)

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 transported across the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's 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 are processed in one second. This is calculated by multiplying the total number of texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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 of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.