GeForce GTX 470 vs Radeon HD 4550 512MB

Intro

Compare all of that to the Radeon HD 4550 512MB, which features GPU clock speed of 600 MHz, and 512 MB of GDDR3 memory set to run at 800 MHz through a 64-bit bus. It also is made up of 80(16x5) SPUs, 8 Texture Address Units, and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 512MB		25 Watts
GeForce GTX 470		215 Watts
	Difference: 190 Watts (760%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 470 will be 946% quicker than the Radeon HD 4550 512MB overall, due to its higher data rate. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 121120 (946%)

Texel Rate

The GeForce GTX 470 should be a lot (more or less 608%) more effective at anisotropic filtering than the Radeon HD 4550 512MB. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 29192 (608%)

Pixel Rate

The GeForce GTX 470 is quite a bit (more or less 912%) more effective at FSAA than the Radeon HD 4550 512MB, and will be able to handle higher screen resolutions better. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 21880 (912%)

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 max amount of information (in units of megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, 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 the video card could 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 ROPs by the clock speed of the card. 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.