Radeon HD 5450 vs Radeon R7 370 4G

Intro

Compare those specs to the Radeon R7 370 4G, which has a GPU core clock speed of 975 MHz, and 4096 MB of GDDR5 memory running at 1400 MHz through a 256-bit bus. It also is made up of 1024 Stream Processors, 64 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
Radeon R7 370 4G		110 Watts
	Difference: 91 Watts (479%)

Memory Bandwidth

The Radeon R7 370 4G, in theory, should be much faster than the Radeon HD 5450 in general. (explain)

Radeon R7 370 4G		179200 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 166400 (1300%)

Texel Rate

The Radeon R7 370 4G is much (about 1100%) better at anisotropic filtering than the Radeon HD 5450. (explain)

Radeon R7 370 4G		62400 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 57200 (1100%)

Pixel Rate

The Radeon R7 370 4G should be much (about 1100%) better at FSAA than the Radeon HD 5450, and should be able to handle higher screen resolutions more effectively. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 28600 (1100%)

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 largest amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.