Radeon HD 7750 vs Radeon R9 380 4G

Intro

Compare those specs to the Radeon R9 380 4G, which uses a 28 nm design. AMD has set the core speed at 970 MHz. The GDDR5 RAM runs at a speed of 1425 MHz on this model. It features 1792 SPUs as well as 112 TAUs and 32 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 380 4G		8837 points
Radeon HD 7750		2240 points
	Difference: 6597 (295%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon R9 380 4G		190 Watts
	Difference: 135 Watts (245%)

Memory Bandwidth

The Radeon R9 380 4G should in theory be quite a bit faster than the Radeon HD 7750 overall. (explain)

Radeon R9 380 4G		182400 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 110400 (153%)

Texel Rate

The Radeon R9 380 4G should be much (about 324%) faster with regards to anisotropic filtering than the Radeon HD 7750. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 83040 (324%)

Pixel Rate

The Radeon R9 380 4G will be a lot (approximately 143%) faster with regards to full screen anti-aliasing than the Radeon HD 7750, and also should be able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 380 4G		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 largest amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied 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 better this number, 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 amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.