GeForce 8400 GS 512MB vs Radeon RX 560

Intro

Compare all that to the Radeon RX 560, which comes with a clock frequency of 1175 MHz and a GDDR5 memory frequency of 1750 MHz. It also features a 128-bit bus, and uses a 14 nm design. It features 1024 SPUs, 64 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8400 GS 512MB		40 Watts
Radeon RX 560		80 Watts
	Difference: 40 Watts (100%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 560 should be 1692% faster than the GeForce 8400 GS 512MB in general, because of its greater bandwidth. (explain)

Radeon RX 560		114688 MB/sec
GeForce 8400 GS 512MB		6400 MB/sec
	Difference: 108288 (1692%)

Texel Rate

The Radeon RX 560 should be a lot (about 1346%) more effective at AF than the GeForce 8400 GS 512MB. (explain)

Radeon RX 560		75200 Mtexels/sec
GeForce 8400 GS 512MB		5200 Mtexels/sec
	Difference: 70000 (1346%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 560 is a better choice, by far. (explain)

Radeon RX 560		18800 Mpixels/sec
GeForce 8400 GS 512MB		2600 Mpixels/sec
	Difference: 16200 (623%)

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 largest amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could 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 Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many 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.