GeForce GTX 480 vs Radeon HD 4670 1GB

Intro

Compare that to the Radeon HD 4670 1GB, which features GPU core speed of 750 MHz, and 1024 MB of GDDR4/GDDR3/DDR3/DDR2 memory running at 1100 MHz through a 128-bit bus. It also is comprised of 320(64x5) Stream Processors, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB		70 Watts
GeForce GTX 480		250 Watts
	Difference: 180 Watts (257%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 480 is 404% faster than the Radeon HD 4670 1GB overall, due to its higher bandwidth. (explain)

GeForce GTX 480		177408 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 142208 (404%)

Texel Rate

The GeForce GTX 480 should be quite a bit (approximately 75%) faster with regards to anisotropic filtering than the Radeon HD 4670 1GB. (explain)

GeForce GTX 480		42000 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 18000 (75%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 480 is a better choice, and very much so. (explain)

GeForce GTX 480		33600 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 27600 (460%)

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 (measured in MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 number 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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