Radeon HD 5870 vs Radeon R7 250

Intro

Compare those specifications to the Radeon R7 250, which comes with core speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon HD 5870		188 Watts
	Difference: 123 Watts (189%)

Memory Bandwidth

In theory, the Radeon HD 5870 will be 109% faster than the Radeon R7 250 overall, due to its greater bandwidth. (explain)

Radeon HD 5870		153600 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 80000 (109%)

Texel Rate

The Radeon HD 5870 is much (about 183%) better at AF than the Radeon R7 250. (explain)

Radeon HD 5870		68000 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 44000 (183%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 5870 is a better choice, and very much so. (explain)

Radeon HD 5870		27200 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 19200 (240%)

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: Bandwidth is the max amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

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