GeForce RTX 3090 vs Radeon HD 7750

Intro

Compare all of that to the Radeon HD 7750, which comes with clock speeds of 800 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 memory. It features 512 SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
GeForce RTX 3090		350 Watts
	Difference: 295 Watts (536%)

Memory Bandwidth

In theory, the GeForce RTX 3090 will be 1231% quicker than the Radeon HD 7750 in general, due to its higher bandwidth. (explain)

GeForce RTX 3090		958668 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 886668 (1231%)

Texel Rate

The GeForce RTX 3090 should be much (approximately 1687%) faster with regards to texture filtering than the Radeon HD 7750. (explain)

GeForce RTX 3090		457560 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 431960 (1687%)

Pixel Rate

If using a high resolution is important to you, then the GeForce RTX 3090 is the winner, by a large margin. (explain)

GeForce RTX 3090		156240 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 143440 (1121%)

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 (in units of megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.