Radeon HD 6450 (OEM) 1GB vs Radeon R7 260X

Intro

Compare all of that to the Radeon R7 260X, which features GPU core speed of 1100 MHz, and 2048 MB of GDDR5 RAM running at 1625 MHz through a 128-bit bus. It also features 896 Stream Processors, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
Radeon R7 260X		115 Watts
	Difference: 84 Watts (271%)

Memory Bandwidth

As far as performance goes, the Radeon R7 260X should theoretically be quite a bit superior to the Radeon HD 6450 (OEM) 1GB in general. (explain)

Radeon R7 260X		104000 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 75200 (261%)

Texel Rate

The Radeon R7 260X is quite a bit (approximately 927%) more effective at texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

Radeon R7 260X		61600 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 55600 (927%)

Pixel Rate

The Radeon R7 260X should be a lot (more or less 487%) faster with regards to FSAA than the Radeon HD 6450 (OEM) 1GB, and also capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R7 260X		17600 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 14600 (487%)

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 moved over the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, 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 amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure 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 rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.