Radeon HD 3470 512MB vs Radeon R7 250X

Intro

Compare that to the Radeon R7 250X, which has core speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R7 250X will be 137% faster than the Radeon HD 3470 512MB in general, due to its higher bandwidth. (explain)

Radeon R7 250X		72000 MB/sec
Radeon HD 3470 512MB		30400 MB/sec
	Difference: 41600 (137%)

Texel Rate

The Radeon R7 250X should be a lot (about 1150%) better at texture filtering than the Radeon HD 3470 512MB. (explain)

Radeon R7 250X		40000 Mtexels/sec
Radeon HD 3470 512MB		3200 Mtexels/sec
	Difference: 36800 (1150%)

Pixel Rate

The Radeon R7 250X should be quite a bit (about 400%) more effective at anti-aliasing than the Radeon HD 3470 512MB, and also will be capable of handling higher resolutions without slowing down too much. (explain)

Radeon R7 250X		16000 Mpixels/sec
Radeon HD 3470 512MB		3200 Mpixels/sec
	Difference: 12800 (400%)

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 information (counted in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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