GeForce GT 130 vs Radeon R9 270

Intro

Compare all of that to the Radeon R9 270, which comes with a core clock frequency of 900 MHz and a GDDR5 memory frequency of 1400 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is made up of 1280 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 130		75 Watts
Radeon R9 270		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

As far as performance goes, the Radeon R9 270 should in theory be much better than the GeForce GT 130 overall. (explain)

Radeon R9 270		179200 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 167200 (1393%)

Texel Rate

The Radeon R9 270 should be quite a bit (more or less 500%) more effective at AF than the GeForce GT 130. (explain)

Radeon R9 270		72000 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 60000 (500%)

Pixel Rate

The Radeon R9 270 is much (approximately 260%) better at FSAA than the GeForce GT 130, and also will be capable of handling higher resolutions while still performing well. (explain)

Radeon R9 270		28800 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 20800 (260%)

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 megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units by the core 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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 is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.