Radeon HD 7750 vs Radeon R9 380X

Intro

Compare that to the Radeon R9 380X, which features a clock frequency of 970 MHz and a GDDR5 memory speed of 1425 MHz. It also makes use of a 256-bit memory bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the Radeon R9 380X will be 153% faster than the Radeon HD 7750 overall, because of its higher data rate. (explain)

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

Texel Rate

The Radeon R9 380X should be much (about 385%) more effective at texture filtering 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 will be much (more or less 143%) faster with regards to FSAA than the Radeon HD 7750, and also will be able to handle higher resolutions better. (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 largest amount of data (measured in MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.