Radeon HD 6750 vs Radeon R9 M395X

Intro

Compare all of that to the Radeon R9 M395X, which has core speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
Radeon R9 M395X		125 Watts
	Difference: 39 Watts (45%)

Memory Bandwidth

The Radeon R9 M395X, in theory, should be much faster than the Radeon HD 6750 overall. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 96000 (150%)

Texel Rate

The Radeon R9 M395X is a lot (about 255%) faster with regards to anisotropic filtering than the Radeon HD 6750. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 66444 (255%)

Pixel Rate

The Radeon R9 M395X will be a lot (about 99%) more effective at FSAA than the Radeon HD 6750, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 11536 (99%)

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 data (in units of megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, 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 number of texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.