Radeon HD 7750 vs Radeon R9 280

Intro

Compare all that to the Radeon R9 280, which features core 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 ROPs.

Display Graphs

Hide Graphs

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

The Radeon R9 280 should in theory perform much faster than the Radeon HD 7750 in general. (explain)

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

Texel Rate

The Radeon R9 280 will be quite a bit (approximately 308%) more effective 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

The Radeon R9 280 is much (about 133%) more effective at full screen anti-aliasing than the Radeon HD 7750, and also should be capable of handling higher screen resolutions better. (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 largest amount of information (measured in megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.