Radeon HD 5450 vs Radeon R7 260X

Intro

Compare those specs 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 features 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 5450		19 Watts
Radeon R7 260X		115 Watts
	Difference: 96 Watts (505%)

Memory Bandwidth

Theoretically, the Radeon R7 260X should perform a lot faster than the Radeon HD 5450 in general. (explain)

Radeon R7 260X		104000 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 91200 (713%)

Texel Rate

The Radeon R7 260X is quite a bit (more or less 1085%) more effective at texture filtering than the Radeon HD 5450. (explain)

Radeon R7 260X		61600 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 56400 (1085%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R7 260X is superior to the Radeon HD 5450, and very much so. (explain)

Radeon R7 260X		17600 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 15000 (577%)

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 max amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video 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 that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.