Radeon R9 380 4G vs Radeon RX 7900 XTX

Intro

Compare all of that to the Radeon RX 7900 XTX, which has a clock speed of 1855 MHz and a GDDR6 memory frequency of 2500 MHz. It also makes use of a 384-bit bus, and uses a 5 nm design. It is made up of 6144 SPUs, 384 TAUs, and 192 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 4G		190 Watts
Radeon RX 7900 XTX		355 Watts
	Difference: 165 Watts (87%)

Memory Bandwidth

Theoretically, the Radeon RX 7900 XTX should be much faster than the Radeon R9 380 4G in general. (explain)

Radeon RX 7900 XTX		983040 MB/sec
Radeon R9 380 4G		182400 MB/sec
	Difference: 800640 (439%)

Texel Rate

The Radeon RX 7900 XTX should be much (approximately 556%) faster with regards to texture filtering than the Radeon R9 380 4G. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
Radeon R9 380 4G		108640 Mtexels/sec
	Difference: 603680 (556%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 7900 XTX is superior to the Radeon R9 380 4G, by far. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
Radeon R9 380 4G		31040 Mpixels/sec
	Difference: 325120 (1047%)

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 (in units of MB per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.