Radeon HD 4830 1GB vs Radeon R7 M260X

Intro

Compare all of that to the Radeon R7 M260X, which has GPU clock speed of 825 MHz, and 2048 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also features 384 Stream Processors, 24 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R7 M260X should theoretically be a small bit faster than the Radeon HD 4830 1GB overall. (explain)

Radeon R7 M260X		64000 MB/sec
Radeon HD 4830 1GB		57600 MB/sec
	Difference: 6400 (11%)

Texel Rate

The Radeon R7 M260X should be a bit (about 8%) better at texture filtering than the Radeon HD 4830 1GB. (explain)

Radeon R7 M260X		19800 Mtexels/sec
Radeon HD 4830 1GB		18400 Mtexels/sec
	Difference: 1400 (8%)

Pixel Rate

The Radeon HD 4830 1GB will be quite a bit (about 39%) faster with regards to anti-aliasing than the Radeon R7 M260X, and should be capable of handling higher resolutions without losing too much performance. (explain)

Radeon HD 4830 1GB		9200 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 2600 (39%)

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 (in units of MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends 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.