GeForce GTX Titan X vs Radeon HD 7870

Intro

Compare those specs to the Radeon HD 7870, which has a clock speed of 1000 MHz and a GDDR5 memory speed of 1200 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1280 SPUs, 80 Texture Address Units, and 32 Raster Operation 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

GeForce GTX Titan X		17879 points
Radeon HD 7870		6230 points
	Difference: 11649 (187%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870		175 Watts
GeForce GTX Titan X		250 Watts
	Difference: 75 Watts (43%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX Titan X should be a lot faster than the Radeon HD 7870 in general. (explain)

GeForce GTX Titan X		336000 MB/sec
Radeon HD 7870		153600 MB/sec
	Difference: 182400 (119%)

Texel Rate

The GeForce GTX Titan X is a lot (more or less 140%) better at anisotropic filtering than the Radeon HD 7870. (explain)

GeForce GTX Titan X		192000 Mtexels/sec
Radeon HD 7870		80000 Mtexels/sec
	Difference: 112000 (140%)

Pixel Rate

The GeForce GTX Titan X should be a lot (about 200%) better at anti-aliasing than the Radeon HD 7870, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX Titan X		96000 Mpixels/sec
Radeon HD 7870		32000 Mpixels/sec
	Difference: 64000 (200%)

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 largest amount of data (in units of megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core 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 fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.