Radeon HD 7750 vs Radeon R9 380X

Intro

Compare that to the Radeon R9 380X, which has GPU clock speed of 970 MHz, and 4096 MB of GDDR5 RAM running at 1425 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 32 Raster Operation 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 380X		9519 points
Radeon HD 7750		2240 points
	Difference: 7279 (325%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon R9 380X		190 Watts
	Difference: 135 Watts (245%)

Memory Bandwidth

In theory, the Radeon R9 380X should perform much faster than the Radeon HD 7750 in general. (explain)

Radeon R9 380X		182400 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 110400 (153%)

Texel Rate

The Radeon R9 380X will be a lot (about 385%) better at AF than the Radeon HD 7750. (explain)

Radeon R9 380X		124160 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 98560 (385%)

Pixel Rate

The Radeon R9 380X should be a lot (approximately 143%) better at FSAA than the Radeon HD 7750, and also will be able to handle higher resolutions while still performing well. (explain)

Radeon R9 380X		31040 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 18240 (143%)

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 information (measured in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.