Radeon HD 4670 1GB vs Radeon R5 M330

Intro

Compare all of that to the Radeon R5 M330, which uses a 28 nm design. AMD has set the core speed at 1030 MHz. The DDR3 RAM runs at a speed of 900 MHz on this specific model. It features 320 SPUs as well as 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 4670 1GB should be 144% quicker than the Radeon R5 M330 overall, due to its higher bandwidth. (explain)

Radeon HD 4670 1GB		35200 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 20800 (144%)

Texel Rate

The Radeon HD 4670 1GB should be a bit (approximately 17%) faster with regards to anisotropic filtering than the Radeon R5 M330. (explain)

Radeon HD 4670 1GB		24000 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 3400 (17%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R5 M330 is superior to the Radeon HD 4670 1GB, and very much so. (explain)

Radeon R5 M330		8240 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 2240 (37%)

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 largest amount of information (counted in megabytes per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 are processed per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.