Radeon HD 5750 1GB vs Radeon R9 270X

Intro

Compare all of that to the Radeon R9 270X, which makes use of a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 memory works at a frequency of 1400 MHz on this specific model. It features 1280 SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
Radeon R9 270X		180 Watts
	Difference: 94 Watts (109%)

Memory Bandwidth

In theory, the Radeon R9 270X should perform a lot faster than the Radeon HD 5750 1GB overall. (explain)

Radeon R9 270X		179200 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 105600 (143%)

Texel Rate

The Radeon R9 270X will be much (more or less 217%) better at anisotropic filtering than the Radeon HD 5750 1GB. (explain)

Radeon R9 270X		80000 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 54800 (217%)

Pixel Rate

The Radeon R9 270X should be a lot (approximately 186%) faster with regards to full screen anti-aliasing than the Radeon HD 5750 1GB, and also will be able to handle higher screen resolutions better. (explain)

Radeon R9 270X		32000 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 20800 (186%)

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 data (in units of MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total 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 most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.