Radeon HD 7870 vs Radeon R7 250X

Intro

Compare those specs to the Radeon R7 250X, which has core clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

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 HD 7870		6230 points
Radeon R7 250X		2860 points
	Difference: 3370 (118%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
Radeon HD 7870		175 Watts
	Difference: 80 Watts (84%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7870 should theoretically be a lot superior to the Radeon R7 250X in general. (explain)

Radeon HD 7870		153600 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 81600 (113%)

Texel Rate

The Radeon HD 7870 should be a lot (more or less 100%) better at texture filtering than the Radeon R7 250X. (explain)

Radeon HD 7870		80000 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 40000 (100%)

Pixel Rate

The Radeon HD 7870 should be a lot (approximately 100%) better at anti-aliasing than the Radeon R7 250X, and should be capable of handling higher resolutions while still performing well. (explain)

Radeon HD 7870		32000 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 16000 (100%)

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 information (in units of megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card 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 Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.