GeForce GTX 460 (OEM) vs Radeon HD 4670 512MB

Intro

Compare those specs to the Radeon HD 4670 512MB, which uses a 55 nm design. AMD has set the core speed at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 RAM is set to run at a speed of 1000 MHz on this model. It features 320(64x5) SPUs along with 32 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 512MB		70 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 80 Watts (114%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 (OEM) should perform much faster than the Radeon HD 4670 512MB overall. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
Radeon HD 4670 512MB		32000 MB/sec
	Difference: 76800 (240%)

Texel Rate

The GeForce GTX 460 (OEM) is quite a bit (approximately 52%) more effective at AF than the Radeon HD 4670 512MB. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
Radeon HD 4670 512MB		24000 Mtexels/sec
	Difference: 12400 (52%)

Pixel Rate

The GeForce GTX 460 (OEM) will be much (approximately 247%) faster with regards to AA than the Radeon HD 4670 512MB, and also will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
Radeon HD 4670 512MB		6000 Mpixels/sec
	Difference: 14800 (247%)

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 (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.