GeForce GT 230 vs Geforce GTX 770

Intro

Compare that to the Geforce GTX 770, which comes with GPU clock speed of 1046 MHz, and 2048 MB of GDDR5 RAM running at 1753 MHz through a 256-bit bus. It also is comprised of 1536 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
Geforce GTX 770		230 Watts
	Difference: 165 Watts (254%)

Memory Bandwidth

The Geforce GTX 770 should in theory be a lot faster than the GeForce GT 230 overall. (explain)

Geforce GTX 770		224384 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 185984 (484%)

Texel Rate

The Geforce GTX 770 should be quite a bit (about 1421%) more effective at texture filtering than the GeForce GT 230. (explain)

Geforce GTX 770		133888 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 125088 (1421%)

Pixel Rate

The Geforce GTX 770 should be a lot (about 661%) more effective at full screen anti-aliasing than the GeForce GT 230, and also should be capable of handling higher resolutions more effectively. (explain)

Geforce GTX 770		33472 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 29072 (661%)

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 data (in units of MB per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 are applied in one second. This number is calculated by multiplying the total 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends 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.