GeForce 9500 GT DDR2 vs Radeon HD 6670 (OEM)

Intro

Compare all of that to the Radeon HD 6670 (OEM), which comes with clock speeds of 800 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 memory. It features 480 SPUs as well as 24 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2		50 Watts
Radeon HD 6670 (OEM)		63 Watts
	Difference: 13 Watts (26%)

Memory Bandwidth

The Radeon HD 6670 (OEM), in theory, should perform quite a bit faster than the GeForce 9500 GT DDR2 in general. (explain)

Radeon HD 6670 (OEM)		64000 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 48000 (300%)

Texel Rate

The Radeon HD 6670 (OEM) is quite a bit (about 118%) better at texture filtering than the GeForce 9500 GT DDR2. (explain)

Radeon HD 6670 (OEM)		19200 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 10400 (118%)

Pixel Rate

The Radeon HD 6670 (OEM) should be a lot (more or less 45%) more effective at FSAA than the GeForce 9500 GT DDR2, and also will be able to handle higher resolutions while still performing well. (explain)

Radeon HD 6670 (OEM)		6400 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 2000 (45%)

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: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.