Radeon HD 7870 XT vs Radeon RX 460

Intro

Compare those specs to the Radeon RX 460, which has core speeds of 1090 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 896 SPUs as well as 56 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 XT		6390 points
Radeon RX 460		5595 points
	Difference: 795 (14%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon HD 7870 XT		185 Watts
	Difference: 110 Watts (147%)

Memory Bandwidth

In theory, the Radeon HD 7870 XT is 71% faster than the Radeon RX 460 in general, due to its higher data rate. (explain)

Radeon HD 7870 XT		192000 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 80000 (71%)

Texel Rate

The Radeon HD 7870 XT should be quite a bit (approximately 45%) faster with regards to AF than the Radeon RX 460. (explain)

Radeon HD 7870 XT		88800 Mtexels/sec
Radeon RX 460		61040 Mtexels/sec
	Difference: 27760 (45%)

Pixel Rate

The Radeon HD 7870 XT will be quite a bit (about 70%) better at anti-aliasing than the Radeon RX 460, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon HD 7870 XT		29600 Mpixels/sec
Radeon RX 460		17440 Mpixels/sec
	Difference: 12160 (70%)

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 max amount of data (measured in megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.