Radeon HD 6670 (OEM) vs Radeon R9 295X2

Intro

Compare those specifications to the Radeon R9 295X2, which makes use of a 28 nm design. AMD has clocked the core speed at 1018 MHz. The GDDR5 RAM works at a speed of 1250 MHz on this specific card. It features 2816 SPUs as well as 176 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 295X2		21205 points
Radeon HD 6670 (OEM)		1120 points
	Difference: 20085 (1793%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
Radeon R9 295X2		500 Watts
	Difference: 437 Watts (694%)

Memory Bandwidth

In theory, the Radeon R9 295X2 should perform much faster than the Radeon HD 6670 (OEM) in general. (explain)

Radeon R9 295X2		640000 MB/sec
Radeon HD 6670 (OEM)		64000 MB/sec
	Difference: 576000 (900%)

Texel Rate

The Radeon R9 295X2 will be quite a bit (about 1766%) faster with regards to AF than the Radeon HD 6670 (OEM). (explain)

Radeon R9 295X2		358336 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 339136 (1766%)

Pixel Rate

The Radeon R9 295X2 is much (about 1936%) more effective at anti-aliasing than the Radeon HD 6670 (OEM), and will be able to handle higher resolutions better. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 123904 (1936%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output 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 reach the max fill rate.