Radeon R9 270 vs Radeon RX 6700 XT

Intro

Compare those specifications to the Radeon RX 6700 XT, which features GPU clock speed of 2321 MHz, and (Unknown) MB of GDDR6 RAM running at 2000 MHz through a 192-bit bus. It also is comprised of 2560 Stream Processors, 160 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270		150 Watts
Radeon RX 6700 XT		230 Watts
	Difference: 80 Watts (53%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6700 XT should be 119% faster than the Radeon R9 270 in general, because of its higher bandwidth. (explain)

Radeon RX 6700 XT		393216 MB/sec
Radeon R9 270		179200 MB/sec
	Difference: 214016 (119%)

Texel Rate

The Radeon RX 6700 XT is much (more or less 416%) faster with regards to texture filtering than the Radeon R9 270. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 299360 (416%)

Pixel Rate

The Radeon RX 6700 XT is much (about 416%) more effective at anti-aliasing than the Radeon R9 270, and should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 119744 (416%)

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 (in units of MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one 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 this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a 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 number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.