Radeon HD 4750 vs Radeon R7 260X

Intro

Compare those specifications to the Radeon R7 260X, which has GPU core speed of 1100 MHz, and 2048 MB of GDDR5 memory running at 1625 MHz through a 128-bit bus. It also is comprised of 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4750		75 Watts
Radeon R7 260X		115 Watts
	Difference: 40 Watts (53%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 260X should perform a lot faster than the Radeon HD 4750 in general. (explain)

Radeon R7 260X		104000 MB/sec
Radeon HD 4750		51200 MB/sec
	Difference: 52800 (103%)

Texel Rate

The Radeon R7 260X should be quite a bit (about 164%) more effective at texture filtering than the Radeon HD 4750. (explain)

Radeon R7 260X		61600 Mtexels/sec
Radeon HD 4750		23360 Mtexels/sec
	Difference: 38240 (164%)

Pixel Rate

The Radeon R7 260X is much (more or less 51%) more effective at full screen anti-aliasing than the Radeon HD 4750, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R7 260X		17600 Mpixels/sec
Radeon HD 4750		11680 Mpixels/sec
	Difference: 5920 (51%)

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 (counted in MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

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