Radeon HD 7750 vs Radeon R9 280

Intro

Compare those specs to the Radeon R9 280, which features core speeds of 933 MHz on the GPU, and 1250 MHz on the 3072 MB of GDDR5 RAM. 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 will be 233% faster than the Radeon HD 7750 overall, because of its greater data rate. (explain)

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

Texel Rate

The Radeon R9 280 is much (about 308%) better at AF 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 lots of anti-aliasing 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 maximum amount of data (counted in megabytes per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. 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 lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.