Radeon HD 7790 vs Radeon RX Vega 56

Intro

Compare all that to the Radeon RX Vega 56, which uses a 14 nm design. AMD has set the core frequency at 1156 MHz. The HBM2 RAM runs at a speed of 1600 MHz on this card. It features 3584 SPUs along with 224 TAUs and 64 Rasterization Operator Units.

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 Vega 56		21011 points
Radeon HD 7790		4330 points
	Difference: 16681 (385%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Radeon RX Vega 56		210 Watts
	Difference: 125 Watts (147%)

Memory Bandwidth

In theory, the Radeon RX Vega 56 will be 337% faster than the Radeon HD 7790 overall, because of its higher data rate. (explain)

Radeon RX Vega 56		419430 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 323430 (337%)

Texel Rate

The Radeon RX Vega 56 should be quite a bit (approximately 362%) faster with regards to texture filtering than the Radeon HD 7790. (explain)

Radeon RX Vega 56		258944 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 202944 (362%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX Vega 56 is a better choice, by far. (explain)

Radeon RX Vega 56		73984 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 57984 (362%)

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 largest amount of information (measured in megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the 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 number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.