Radeon HD 7870 XT vs Radeon R9 380 2G

Intro

Compare those specs to the Radeon R9 380 2G, which has core speeds of 970 MHz on the GPU, and 1425 MHz on the 2048 MB of GDDR5 RAM. It features 1792 SPUs along with 112 TAUs and 32 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 R9 380 2G		8850 points
Radeon HD 7870 XT		6390 points
	Difference: 2460 (38%)

Ethereum Mining Hash Rate

Radeon R9 380 2G		19 Mh/s
Radeon HD 7870 XT		15 Mh/s
	Difference: 4 (27%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 XT		185 Watts
Radeon R9 380 2G		190 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

In theory, the Radeon HD 7870 XT should be 5% faster than the Radeon R9 380 2G overall, due to its greater data rate. (explain)

Radeon HD 7870 XT		192000 MB/sec
Radeon R9 380 2G		182400 MB/sec
	Difference: 9600 (5%)

Texel Rate

The Radeon R9 380 2G is much (about 22%) better at AF than the Radeon HD 7870 XT. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 19840 (22%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 380 2G is superior to the Radeon HD 7870 XT, not by a very large margin though. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 1440 (5%)

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 maximum amount of information (measured in MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's 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 amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video 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 chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core 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 rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.