Radeon R7 240 vs Radeon R9 280

Intro

Compare those specs to the Radeon R9 280, which uses a 28 nm design. AMD has clocked the core speed at 933 MHz. The GDDR5 memory works at a frequency of 1250 MHz on this specific model. It features 1792 SPUs as well as 112 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 280		7961 points
Radeon R7 240		1218 points
	Difference: 6743 (554%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon R9 280		250 Watts
	Difference: 220 Watts (733%)

Memory Bandwidth

Theoretically, the Radeon R9 280 should perform a lot faster than the Radeon R7 240 overall. (explain)

Radeon R9 280		240000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 211200 (733%)

Texel Rate

The Radeon R9 280 will be quite a bit (approximately 616%) more effective at AF than the Radeon R7 240. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 89896 (616%)

Pixel Rate

The Radeon R9 280 will be much (approximately 411%) faster with regards to AA than the Radeon R7 240, and should be able to handle higher resolutions more effectively. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 24016 (411%)

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 within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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