Radeon HD 7750 vs Radeon R9 290X

Intro

Compare those specs to the Radeon R9 290X, which comes with GPU core speed of 800 MHz, and 4096 MB of GDDR5 memory set to run at 1250 MHz through a 512-bit bus. It also is comprised of 2816 Stream Processors, 176 TAUs, and 64 ROPs.

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

Theoretically speaking, the Radeon R9 290X should perform much faster than the Radeon HD 7750 overall. (explain)

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

Texel Rate

The Radeon R9 290X will be a lot (approximately 450%) better at 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 a high screen resolution is important to you, then the Radeon R9 290X is the winner, 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: Memory bandwidth is the max amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, 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 most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core 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 fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.