Radeon HD 5670 vs Radeon R9 M295X

Intro

Compare all of that to the Radeon R9 M295X, which has a clock frequency of 750 MHz and a GDDR5 memory frequency of 1375 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
Radeon R9 M295X		125 Watts
	Difference: 64 Watts (105%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M295X should be much faster than the Radeon HD 5670 in general. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 112000 (175%)

Texel Rate

The Radeon R9 M295X should be much (approximately 519%) more effective at texture filtering than the Radeon HD 5670. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 80500 (519%)

Pixel Rate

The Radeon R9 M295X is quite a bit (approximately 287%) faster with regards to FSAA than the Radeon HD 5670, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 17800 (287%)

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 one second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once 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 per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at 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 could possibly record to its 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 the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.