GeForce GTS 250 512MB vs Radeon RX 460

Intro

Compare those specifications to the Radeon RX 460, which has GPU core 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 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
GeForce GTS 250 512MB		145 Watts
	Difference: 70 Watts (93%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 460 will be 59% quicker than the GeForce GTS 250 512MB in general, because of its higher bandwidth. (explain)

Radeon RX 460		112000 MB/sec
GeForce GTS 250 512MB		70400 MB/sec
	Difference: 41600 (59%)

Texel Rate

The Radeon RX 460 should be quite a bit (more or less 29%) more effective at AF than the GeForce GTS 250 512MB. (explain)

Radeon RX 460		61040 Mtexels/sec
GeForce GTS 250 512MB		47232 Mtexels/sec
	Difference: 13808 (29%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 460 is the winner, by far. (explain)

Radeon RX 460		17440 Mpixels/sec
GeForce GTS 250 512MB		11808 Mpixels/sec
	Difference: 5632 (48%)

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 (measured in megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines 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 output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.