GeForce GT 130 vs Radeon HD 4550 512MB

Intro

Compare all that to the Radeon HD 4550 512MB, which has a core clock speed of 600 MHz and a GDDR3 memory frequency of 800 MHz. It also features a 64-bit memory bus, and uses a 55 nm design. It is comprised of 80(16x5) SPUs, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 512MB		25 Watts
GeForce GT 130		75 Watts
	Difference: 50 Watts (200%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4550 512MB is 7% faster than the GeForce GT 130 overall, due to its higher data rate. (explain)

Radeon HD 4550 512MB		12800 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 800 (7%)

Texel Rate

The GeForce GT 130 is a lot (more or less 150%) faster with regards to AF than the Radeon HD 4550 512MB. (explain)

GeForce GT 130		12000 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 7200 (150%)

Pixel Rate

The GeForce GT 130 is much (about 233%) more effective at FSAA than the Radeon HD 4550 512MB, and also will be capable of handling higher resolutions more effectively. (explain)

GeForce GT 130		8000 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 5600 (233%)

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 maximum amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.