GeForce RTX 3070 vs Radeon R7 250X

Intro

Compare those specifications to the Radeon R7 250X, which comes with a clock speed of 1000 MHz and a GDDR5 memory frequency of 1125 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
GeForce RTX 3070		220 Watts
	Difference: 125 Watts (132%)

Memory Bandwidth

Theoretically, the Radeon R7 250X should perform a small bit faster than the GeForce RTX 3070 in general. (explain)

Radeon R7 250X		72000 MB/sec
GeForce RTX 3070		(Unknown) MB/sec
	Difference: 72000 (-100%)

Texel Rate

The GeForce RTX 3070 is much (about 590%) more effective at texture filtering than the Radeon R7 250X. (explain)

GeForce RTX 3070		276000 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 236000 (590%)

Pixel Rate

The GeForce RTX 3070 will be quite a bit (about 800%) more effective at full screen anti-aliasing than the Radeon R7 250X, and also will be capable of handling higher resolutions while still performing well. (explain)

GeForce RTX 3070		144000 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 128000 (800%)

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 max amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of 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 fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.