Radeon HD 7950 vs Radeon RX Vega 56

Intro

Compare all that to the Radeon RX Vega 56, which has a core clock frequency of 1156 MHz and a HBM2 memory speed of 1600 MHz. It also uses a 2048-bit bus, and uses a 14 nm design. It is made up of 3584 SPUs, 224 TAUs, 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 7950		7731 points
	Difference: 13280 (172%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7950		200 Watts
Radeon RX Vega 56		210 Watts
	Difference: 10 Watts (5%)

Memory Bandwidth

The Radeon RX Vega 56 should in theory be quite a bit faster than the Radeon HD 7950 in general. (explain)

Radeon RX Vega 56		419430 MB/sec
Radeon HD 7950		240000 MB/sec
	Difference: 179430 (75%)

Texel Rate

The Radeon RX Vega 56 will be quite a bit (approximately 189%) better at anisotropic filtering than the Radeon HD 7950. (explain)

Radeon RX Vega 56		258944 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 169344 (189%)

Pixel Rate

The Radeon RX Vega 56 should be a lot (about 189%) better at anti-aliasing than the Radeon HD 7950, and should be able to handle higher screen resolutions while still performing well. (explain)

Radeon RX Vega 56		73984 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 48384 (189%)

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 data (counted in megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant 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.