Radeon HD 4350 vs Radeon R9 390 8G

Intro

Compare all that to the Radeon R9 390 8G, which comes with a GPU core clock speed of 1000 MHz, and 8192 MB of GDDR5 RAM set to run at 1500 MHz through a 512-bit bus. It also is made up of 2560 SPUs, 160 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4350		22 Watts
Radeon R9 390 8G		275 Watts
	Difference: 253 Watts (1150%)

Memory Bandwidth

Performance-wise, the Radeon R9 390 8G should theoretically be a lot superior to the Radeon HD 4350 overall. (explain)

Radeon R9 390 8G		384000 MB/sec
Radeon HD 4350		8000 MB/sec
	Difference: 376000 (4700%)

Texel Rate

The Radeon R9 390 8G is much (about 3378%) faster with regards to anisotropic filtering than the Radeon HD 4350. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 155400 (3378%)

Pixel Rate

The Radeon R9 390 8G will be a lot (about 2683%) faster with regards to FSAA than the Radeon HD 4350, and also will be able to handle higher resolutions better. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 61700 (2683%)

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 (in units of MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video 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 amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock 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 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 reach the max fill rate.