Radeon HD 7750 vs Radeon R9 295X2

Intro

Compare those specifications to the Radeon R9 295X2, which comes with GPU clock speed of 1018 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 512-bit bus. It also is made up of 2816 SPUs, 176 Texture Address Units, and 64 Raster Operation 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 7750		2240 points
	Difference: 18965 (847%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon R9 295X2		500 Watts
	Difference: 445 Watts (809%)

Memory Bandwidth

As far as performance goes, the Radeon R9 295X2 should theoretically be a lot better than the Radeon HD 7750 overall. (explain)

Radeon R9 295X2		640000 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 568000 (789%)

Texel Rate

The Radeon R9 295X2 will be quite a bit (approximately 1300%) better at AF than the Radeon HD 7750. (explain)

Radeon R9 295X2		358336 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 332736 (1300%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 295X2 is a better choice, by a large margin. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 117504 (918%)

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 max amount of data (counted in megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units 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 rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.