GeForce GTX 460 1GB vs Radeon HD 4670 1GB

Intro

Compare those specifications to the Radeon HD 4670 1GB, which makes use of a 55 nm design. AMD has clocked the core speed at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 RAM works at a speed of 1100 MHz on this specific model. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB		70 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 90 Watts (129%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 1GB should perform quite a bit faster than the Radeon HD 4670 1GB in general. (explain)

GeForce GTX 460 1GB		115200 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 80000 (227%)

Texel Rate

The GeForce GTX 460 1GB will be a lot (about 58%) faster with regards to AF than the Radeon HD 4670 1GB. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 13800 (58%)

Pixel Rate

The GeForce GTX 460 1GB will be a lot (about 260%) faster with regards to anti-aliasing than the Radeon HD 4670 1GB, and also will be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 15600 (260%)

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 megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.