Radeon HD 7770 vs Radeon RX Vega 56

Intro

Compare that to the Radeon RX Vega 56, which makes use of 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 as well as 224 Texture Address Units 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 7770		3180 points
	Difference: 17831 (561%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770		80 Watts
Radeon RX Vega 56		210 Watts
	Difference: 130 Watts (163%)

Memory Bandwidth

Theoretically speaking, the Radeon RX Vega 56 should perform much faster than the Radeon HD 7770 overall. (explain)

Radeon RX Vega 56		419430 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 347430 (483%)

Texel Rate

The Radeon RX Vega 56 is quite a bit (approximately 547%) faster with regards to AF than the Radeon HD 7770. (explain)

Radeon RX Vega 56		258944 Mtexels/sec
Radeon HD 7770		40000 Mtexels/sec
	Difference: 218944 (547%)

Pixel Rate

The Radeon RX Vega 56 will be a lot (more or less 362%) faster with regards to FSAA than the Radeon HD 7770, and also should be able to handle higher resolutions more effectively. (explain)

Radeon RX Vega 56		73984 Mpixels/sec
Radeon HD 7770		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 max amount of data (counted in megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 are applied 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 better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory per 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 - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.