Radeon HD 7750 vs Radeon R9 290X

Intro

Compare that to the Radeon R9 290X, which uses a 28 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 RAM is set to run at a frequency of 1250 MHz on this specific card. It features 2816 SPUs as well as 176 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 290X		10609 points
Radeon HD 7750		2240 points
	Difference: 8369 (374%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon R9 290X		300 Watts
	Difference: 245 Watts (445%)

Memory Bandwidth

In theory, the Radeon R9 290X will be 344% faster than the Radeon HD 7750 in general, due to its higher data rate. (explain)

Radeon R9 290X		320000 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 248000 (344%)

Texel Rate

The Radeon R9 290X will be quite a bit (approximately 450%) faster with regards to anisotropic filtering than the Radeon HD 7750. (explain)

Radeon R9 290X		140800 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 115200 (450%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 290X is superior to the Radeon HD 7750, by a large margin. (explain)

Radeon R9 290X		51200 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 38400 (300%)

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 megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video 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 amount of pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.