Radeon R9 295X2 vs Radeon RX Vega 64

Intro

Compare all that to the Radeon RX Vega 64, which features a core clock frequency of 1247 MHz and a HBM2 memory speed of 1890 MHz. It also makes use of a 2048-bit memory bus, and makes use of a 14 nm design. It is comprised of 4096 SPUs, 256 TAUs, and 64 ROPs.

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 64		21986 points
Radeon R9 295X2		21205 points
	Difference: 781 (4%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 64		295 Watts
Radeon R9 295X2		500 Watts
	Difference: 205 Watts (69%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 295X2 will be 29% quicker than the Radeon RX Vega 64 overall, because of its greater bandwidth. (explain)

Radeon R9 295X2		640000 MB/sec
Radeon RX Vega 64		495411 MB/sec
	Difference: 144589 (29%)

Texel Rate

The Radeon R9 295X2 should be a little bit (more or less 12%) faster with regards to AF than the Radeon RX Vega 64. (explain)

Radeon R9 295X2		358336 Mtexels/sec
Radeon RX Vega 64		319232 Mtexels/sec
	Difference: 39104 (12%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 295X2 is the winner, by far. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 50496 (63%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 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 AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number 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 is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.