Radeon HD 5450 vs Radeon R7 260X

Intro

Compare those specifications to the Radeon R7 260X, which comes with a core clock frequency of 1100 MHz and a GDDR5 memory frequency of 1625 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It 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 speaking, the Radeon R7 260X should be quite a bit faster than the Radeon HD 5450 overall. (explain)

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

Texel Rate

The Radeon R7 260X should be much (more or less 1085%) more effective at AF than the Radeon HD 5450. (explain)

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

Pixel Rate

The Radeon R7 260X should be quite a bit (approximately 577%) faster with regards to full screen anti-aliasing than the Radeon HD 5450, and also capable of handling higher screen resolutions more effectively. (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 information (counted in megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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