GeForce GT 230 vs Radeon R9 380 4G

Intro

Compare all that to the Radeon R9 380 4G, which has GPU clock speed of 970 MHz, and 4096 MB of GDDR5 memory running at 1425 MHz through a 256-bit bus. It also is comprised of 1792 Stream Processors, 112 TAUs, 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
Radeon R9 380 4G		190 Watts
	Difference: 125 Watts (192%)

Memory Bandwidth

In theory, the Radeon R9 380 4G should be 375% quicker than the GeForce GT 230 in general, because of its greater data rate. (explain)

Radeon R9 380 4G		182400 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 144000 (375%)

Texel Rate

The Radeon R9 380 4G should be quite a bit (about 1135%) faster with regards to texture filtering than the GeForce GT 230. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 99840 (1135%)

Pixel Rate

The Radeon R9 380 4G should be quite a bit (about 605%) faster with regards to FSAA than the GeForce GT 230, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon R9 380 4G		31040 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 26640 (605%)

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 (measured in MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 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 can be processed per second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.