GeForce GTX 560 vs Radeon HD 4670 512MB

Intro

Compare all of that to the Radeon HD 4670 512MB, which has a clock frequency of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory frequency of 1000 MHz. It also makes use of a 128-bit memory bus, and uses a 55 nm design. It features 320(64x5) SPUs, 32 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 512MB		70 Watts
GeForce GTX 560		150 Watts
	Difference: 80 Watts (114%)

Memory Bandwidth

In theory, the GeForce GTX 560 should be a lot faster than the Radeon HD 4670 512MB overall. (explain)

GeForce GTX 560		128128 MB/sec
Radeon HD 4670 512MB		32000 MB/sec
	Difference: 96128 (300%)

Texel Rate

The GeForce GTX 560 is a lot (about 89%) better at texture filtering than the Radeon HD 4670 512MB. (explain)

GeForce GTX 560		45360 Mtexels/sec
Radeon HD 4670 512MB		24000 Mtexels/sec
	Difference: 21360 (89%)

Pixel Rate

The GeForce GTX 560 should be a lot (more or less 332%) better at FSAA than the Radeon HD 4670 512MB, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 560		25920 Mpixels/sec
Radeon HD 4670 512MB		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 maximum amount of data (in units of MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount 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 ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.