GeForce GT 240 GDDR5 1GB vs Radeon RX 460

Intro

Compare that to the Radeon RX 460, which has GPU clock speed of 1090 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also features 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
Radeon RX 460		75 Watts
	Difference: 5 Watts (7%)

Memory Bandwidth

As far as performance goes, the Radeon RX 460 should in theory be a lot better than the GeForce GT 240 GDDR5 1GB overall. (explain)

Radeon RX 460		112000 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 57600 (106%)

Texel Rate

The Radeon RX 460 is quite a bit (approximately 247%) faster with regards to AF than the GeForce GT 240 GDDR5 1GB. (explain)

Radeon RX 460		61040 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 43440 (247%)

Pixel Rate

The Radeon RX 460 should be a lot (about 296%) faster with regards to FSAA than the GeForce GT 240 GDDR5 1GB, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 460		17440 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 13040 (296%)

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 transferred over the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount 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 output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.