GeForce RTX 4070 Ti vs Radeon R9 M390X

Intro

Compare those specifications to the Radeon R9 M390X, which features a clock speed of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X		125 Watts
GeForce RTX 4070 Ti		285 Watts
	Difference: 160 Watts (128%)

Memory Bandwidth

In theory, the GeForce RTX 4070 Ti will be 223% quicker than the Radeon R9 M390X overall, due to its higher bandwidth. (explain)

GeForce RTX 4070 Ti		516096 MB/sec
Radeon R9 M390X		160000 MB/sec
	Difference: 356096 (223%)

Texel Rate

The GeForce RTX 4070 Ti should be much (more or less 499%) faster with regards to anisotropic filtering than the Radeon R9 M390X. (explain)

GeForce RTX 4070 Ti		554400 Mtexels/sec
Radeon R9 M390X		92544 Mtexels/sec
	Difference: 461856 (499%)

Pixel Rate

The GeForce RTX 4070 Ti is a lot (about 699%) faster with regards to AA than the Radeon R9 M390X, and also should be capable of handling higher screen resolutions better. (explain)

GeForce RTX 4070 Ti		184800 Mpixels/sec
Radeon R9 M390X		23136 Mpixels/sec
	Difference: 161664 (699%)

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 data (measured in MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 are applied in one second. This is calculated by multiplying the total number of 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock 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 fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.