Radeon HD 7750 vs Radeon R9 M385X

Intro

Compare all that to the Radeon R9 M385X, which uses a 28 nm design. AMD has clocked the core frequency at 1100 MHz. The GDDR5 memory runs at a frequency of 1500 MHz on this specific card. It features 896 SPUs along with 56 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M385X is 33% quicker than the Radeon HD 7750 overall, because of its greater data rate. (explain)

Radeon R9 M385X		96000 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 24000 (33%)

Texel Rate

The Radeon R9 M385X is quite a bit (approximately 141%) more effective at anisotropic filtering than the Radeon HD 7750. (explain)

Radeon R9 M385X		61600 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 36000 (141%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M385X is superior to the Radeon HD 7750, by a large margin. (explain)

Radeon R9 M385X		17600 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 4800 (38%)

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 maximum amount of data (measured in megabytes per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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