GeForce GTX 560 vs Radeon HD 4670 1GB

Intro

Compare those specifications to the Radeon HD 4670 1GB, which has clock speeds of 750 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR4/GDDR3/DDR3/DDR2 RAM. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB		70 Watts
GeForce GTX 560		150 Watts
	Difference: 80 Watts (114%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 should be 264% faster than the Radeon HD 4670 1GB in general, due to its greater data rate. (explain)

GeForce GTX 560		128128 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 92928 (264%)

Texel Rate

The GeForce GTX 560 is a lot (more or less 89%) more effective at anisotropic filtering than the Radeon HD 4670 1GB. (explain)

GeForce GTX 560		45360 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 21360 (89%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 560 is superior to the Radeon HD 4670 1GB, and very much so. (explain)

GeForce GTX 560		25920 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 19920 (332%)

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 past the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it must 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 texture map elements (texels) that are applied per second. This is worked out 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.