Radeon HD 4670 1GB vs Radeon R7 260X

Intro

Compare all of that to the Radeon R7 260X, which uses a 28 nm design. AMD has clocked the core speed at 1100 MHz. The GDDR5 RAM works at a speed of 1625 MHz on this particular model. It features 896 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB		70 Watts
Radeon R7 260X		115 Watts
	Difference: 45 Watts (64%)

Memory Bandwidth

The Radeon R7 260X, in theory, should be much faster than the Radeon HD 4670 1GB in general. (explain)

Radeon R7 260X		104000 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 68800 (195%)

Texel Rate

The Radeon R7 260X is much (more or less 157%) better at AF than the Radeon HD 4670 1GB. (explain)

Radeon R7 260X		61600 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 37600 (157%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R7 260X is a better choice, and very much so. (explain)

Radeon R7 260X		17600 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 11600 (193%)

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 transported over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units 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 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. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.