Radeon HD 6770 1GB vs Radeon R9 M375X

Intro

Compare that to the Radeon R9 M375X, which features GPU core speed of 1015 MHz, and 4096 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is comprised of 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M375X should be just a bit faster than the Radeon HD 6770 1GB overall. (explain)

Radeon R9 M375X		72000 MB/sec
Radeon HD 6770 1GB		67200 MB/sec
	Difference: 4800 (7%)

Texel Rate

The Radeon R9 M375X is a bit (about 13%) more effective at AF than the Radeon HD 6770 1GB. (explain)

Radeon R9 M375X		40600 Mtexels/sec
Radeon HD 6770 1GB		36000 Mtexels/sec
	Difference: 4600 (13%)

Pixel Rate

The Radeon R9 M375X is just a bit (about 13%) more effective at FSAA than the Radeon HD 6770 1GB, and also capable of handling higher resolutions more effectively. (explain)

Radeon R9 M375X		16240 Mpixels/sec
Radeon HD 6770 1GB		14400 Mpixels/sec
	Difference: 1840 (13%)

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: Bandwidth is the maximum 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 card's interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of 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.