Radeon HD 4830 512MB vs Radeon R7 260X

Intro

Compare that to the Radeon R7 260X, which features a core clock frequency of 1100 MHz and a GDDR5 memory frequency of 1625 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It features 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4830 512MB		95 Watts
Radeon R7 260X		115 Watts
	Difference: 20 Watts (21%)

Memory Bandwidth

The Radeon R7 260X, in theory, should be much faster than the Radeon HD 4830 512MB overall. (explain)

Radeon R7 260X		104000 MB/sec
Radeon HD 4830 512MB		57600 MB/sec
	Difference: 46400 (81%)

Texel Rate

The Radeon R7 260X should be much (approximately 235%) more effective at anisotropic filtering than the Radeon HD 4830 512MB. (explain)

Radeon R7 260X		61600 Mtexels/sec
Radeon HD 4830 512MB		18400 Mtexels/sec
	Difference: 43200 (235%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R7 260X is superior to the Radeon HD 4830 512MB, by a large margin. (explain)

Radeon R7 260X		17600 Mpixels/sec
Radeon HD 4830 512MB		9200 Mpixels/sec
	Difference: 8400 (91%)

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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.