Radeon HD 7870 vs Radeon RX Vega 56

Intro

Compare all of that to the Radeon RX Vega 56, which features a GPU core clock speed of 1156 MHz, and 8192 MB of HBM2 memory running at 1600 MHz through a 2048-bit bus. It also features 3584 Stream Processors, 224 Texture Address Units, and 64 Raster Operation 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 7870		6230 points
	Difference: 14781 (237%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870		175 Watts
Radeon RX Vega 56		210 Watts
	Difference: 35 Watts (20%)

Memory Bandwidth

Performance-wise, the Radeon RX Vega 56 should in theory be much better than the Radeon HD 7870 overall. (explain)

Radeon RX Vega 56		419430 MB/sec
Radeon HD 7870		153600 MB/sec
	Difference: 265830 (173%)

Texel Rate

The Radeon RX Vega 56 should be a lot (more or less 224%) better at texture filtering than the Radeon HD 7870. (explain)

Radeon RX Vega 56		258944 Mtexels/sec
Radeon HD 7870		80000 Mtexels/sec
	Difference: 178944 (224%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX Vega 56 is superior to the Radeon HD 7870, by a large margin. (explain)

Radeon RX Vega 56		73984 Mpixels/sec
Radeon HD 7870		32000 Mpixels/sec
	Difference: 41984 (131%)

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 information (measured in megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 can be processed per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at 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 card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. 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 quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.