Radeon HD 5670 vs Radeon R9 M395X

Intro

Compare all that to the Radeon R9 M395X, which has a core clock frequency of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
Radeon R9 M395X		125 Watts
	Difference: 64 Watts (105%)

Memory Bandwidth

The Radeon R9 M395X should theoretically perform quite a bit faster than the Radeon HD 5670 in general. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 96000 (150%)

Texel Rate

The Radeon R9 M395X is a lot (about 497%) more effective at anisotropic filtering than the Radeon HD 5670. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 77044 (497%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 M395X is superior to the Radeon HD 5670, and very much so. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 16936 (273%)

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 MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied 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 one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.