Radeon HD 7870 XT vs Radeon R7 250X

Intro

Compare all of that to the Radeon R7 250X, which comes with 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 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 HD 7870 XT		6390 points
Radeon R7 250X		2860 points
	Difference: 3530 (123%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
Radeon HD 7870 XT		185 Watts
	Difference: 90 Watts (95%)

Memory Bandwidth

The Radeon HD 7870 XT should theoretically perform quite a bit faster than the Radeon R7 250X overall. (explain)

Radeon HD 7870 XT		192000 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 120000 (167%)

Texel Rate

The Radeon HD 7870 XT will be a lot (approximately 122%) faster with regards to texture filtering than the Radeon R7 250X. (explain)

Radeon HD 7870 XT		88800 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 48800 (122%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 7870 XT is the winner, by a large margin. (explain)

Radeon HD 7870 XT		29600 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 13600 (85%)

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 MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.