GeForce 9500 GT DDR2 vs Radeon HD 6570 (OEM) 1GB

Intro

Compare all of that to the Radeon HD 6570 (OEM) 1GB, which has a clock speed of 650 MHz and a GDDR3 memory speed of 900 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It features 480 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

As far as performance goes, the Radeon HD 6570 (OEM) 1GB should theoretically be much better than the GeForce 9500 GT DDR2 in general. (explain)

Radeon HD 6570 (OEM) 1GB		28800 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 12800 (80%)

Texel Rate

The Radeon HD 6570 (OEM) 1GB is quite a bit (more or less 77%) faster with regards to AF than the GeForce 9500 GT DDR2. (explain)

Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 6800 (77%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6570 (OEM) 1GB is a better choice, but it probably won't make a huge difference. (explain)

Radeon HD 6570 (OEM) 1GB		5200 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 800 (18%)

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 information (counted in megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If 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 can be processed per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better 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 maximum amount of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's 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 quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.