Radeon HD 7750 vs Radeon R9 280

Intro

Compare those specifications to the Radeon R9 280, which features core clock speeds of 933 MHz on the GPU, and 1250 MHz on the 3072 MB of GDDR5 memory. It features 1792 SPUs along with 112 Texture Address Units and 32 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 280		7961 points
Radeon HD 7750		2240 points
	Difference: 5721 (255%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon R9 280		250 Watts
	Difference: 195 Watts (355%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 280 should be much faster than the Radeon HD 7750 overall. (explain)

Radeon R9 280		240000 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 168000 (233%)

Texel Rate

The Radeon R9 280 is a lot (about 308%) more effective at texture filtering than the Radeon HD 7750. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 78896 (308%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 280 is superior to the Radeon HD 7750, and very much so. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 17056 (133%)

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 max amount of data (counted in megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.