Radeon HD 4350 vs Radeon R9 390X 8G

Intro

Compare those specifications to the Radeon R9 390X 8G, which comes with core speeds of 1050 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 memory. It features 2816 SPUs along with 176 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Performance-wise, the Radeon R9 390X 8G should theoretically be quite a bit better than the Radeon HD 4350 in general. (explain)

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

Texel Rate

The Radeon R9 390X 8G will be much (more or less 3917%) more effective at texture filtering than the Radeon HD 4350. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 180200 (3917%)

Pixel Rate

The Radeon R9 390X 8G should be a lot (about 2822%) faster with regards to full screen anti-aliasing than the Radeon HD 4350, and able to handle higher screen resolutions better. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 64900 (2822%)

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 max amount of information (in units of MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it must 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.