Radeon HD 7750 vs Radeon R9 270

Intro

Compare all that to the Radeon R9 270, which comes with a clock frequency of 900 MHz and a GDDR5 memory frequency of 1400 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It features 1280 SPUs, 80 TAUs, and 32 ROPs.

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 270		5943 points
Radeon HD 7750		2240 points
	Difference: 3703 (165%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon R9 270		150 Watts
	Difference: 95 Watts (173%)

Memory Bandwidth

The Radeon R9 270 should theoretically perform quite a bit faster than the Radeon HD 7750 overall. (explain)

Radeon R9 270		179200 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 107200 (149%)

Texel Rate

The Radeon R9 270 will be quite a bit (about 181%) more effective at texture filtering than the Radeon HD 7750. (explain)

Radeon R9 270		72000 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 46400 (181%)

Pixel Rate

The Radeon R9 270 will be much (approximately 125%) better at AA than the Radeon HD 7750, and will be capable of handling higher screen resolutions better. (explain)

Radeon R9 270		28800 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 16000 (125%)

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 (counted in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 are applied in one second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.