Radeon HD 6790 vs Radeon RX 460

Intro

Compare those specifications to the Radeon RX 460, which has core speeds of 1090 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 896 SPUs along with 56 TAUs and 16 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX 460		5595 points
Radeon HD 6790		2150 points
	Difference: 3445 (160%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon HD 6790		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6790 should be a small bit faster than the Radeon RX 460 overall. (explain)

Radeon HD 6790		134400 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 22400 (20%)

Texel Rate

The Radeon RX 460 should be a lot (about 82%) better at texture filtering than the Radeon HD 6790. (explain)

Radeon RX 460		61040 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 27440 (82%)

Pixel Rate

The Radeon RX 460 should be much (approximately 30%) faster with regards to anti-aliasing than the Radeon HD 6790, and also will be able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 460		17440 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 4000 (30%)

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 information (in units of MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.