GeForce 8400 GS 512MB vs Radeon R9 Fury X

Intro

Compare those specs to the Radeon R9 Fury X, which features a core clock frequency of 1050 MHz and a HBM memory frequency of 500 MHz. It also makes use of a 4096-bit bus, and uses a 28 nm design. It features 4096 SPUs, 256 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8400 GS 512MB		40 Watts
Radeon R9 Fury X		275 Watts
	Difference: 235 Watts (588%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 Fury X should perform quite a bit faster than the GeForce 8400 GS 512MB overall. (explain)

Radeon R9 Fury X		512000 MB/sec
GeForce 8400 GS 512MB		6400 MB/sec
	Difference: 505600 (7900%)

Texel Rate

The Radeon R9 Fury X should be a lot (about 5069%) more effective at anisotropic filtering than the GeForce 8400 GS 512MB. (explain)

Radeon R9 Fury X		268800 Mtexels/sec
GeForce 8400 GS 512MB		5200 Mtexels/sec
	Difference: 263600 (5069%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 Fury X is superior to the GeForce 8400 GS 512MB, and very much so. (explain)

Radeon R9 Fury X		67200 Mpixels/sec
GeForce 8400 GS 512MB		2600 Mpixels/sec
	Difference: 64600 (2485%)

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 maximum amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling 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 can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.