Radeon HD 7750 vs Radeon R9 270

Intro

Compare those specifications to the Radeon R9 270, which has clock speeds of 900 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs as well as 80 Texture Address Units 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

Performance-wise, the Radeon R9 270 should theoretically be much better 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 much (more or less 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 is a lot (about 125%) faster with regards to full screen anti-aliasing than the Radeon HD 7750, and also will be capable of handling higher 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: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could 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 Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.