GeForce GT 230 vs Radeon HD 6950

Intro

Compare those specs to the Radeon HD 6950, which has a clock speed of 800 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 256-bit memory bus, and uses a 40 nm design. It is comprised of 1408 SPUs, 88 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
Radeon HD 6950		200 Watts
	Difference: 135 Watts (208%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 will be 317% quicker than the GeForce GT 230 overall, due to its higher bandwidth. (explain)

Radeon HD 6950		160000 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 121600 (317%)

Texel Rate

The Radeon HD 6950 should be much (approximately 700%) better at texture filtering than the GeForce GT 230. (explain)

Radeon HD 6950		70400 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 61600 (700%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6950 is a better choice, and very much so. (explain)

Radeon HD 6950		25600 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 21200 (482%)

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 max amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied 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 better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.