Radeon HD 7950 vs Radeon RX Vega 64

Intro

Compare those specifications to the Radeon RX Vega 64, which features core clock speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 memory. It features 4096 SPUs as well as 256 TAUs and 64 ROPs.

Display Graphs

Hide Graphs

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 64		21986 points
Radeon HD 7950		7731 points
	Difference: 14255 (184%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7950		200 Watts
Radeon RX Vega 64		295 Watts
	Difference: 95 Watts (48%)

Memory Bandwidth

The Radeon RX Vega 64, in theory, should perform a lot faster than the Radeon HD 7950 in general. (explain)

Radeon RX Vega 64		495411 MB/sec
Radeon HD 7950		240000 MB/sec
	Difference: 255411 (106%)

Texel Rate

The Radeon RX Vega 64 is much (about 256%) more effective at AF than the Radeon HD 7950. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 229632 (256%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX Vega 64 is a better choice, and very much so. (explain)

Radeon RX Vega 64		79808 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 54208 (212%)

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 maximum amount of information (measured in MB per second) that can be moved past the external memory interface in one second. It's worked out 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 bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount 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 this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.