GeForce GTX 980 Ti vs Radeon HD 7870 XT

Intro

Compare that to the Radeon HD 7870 XT, which comes with clock speeds of 925 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 96 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

GeForce GTX 980 Ti		17120 points
Radeon HD 7870 XT		6390 points
	Difference: 10730 (168%)

Ethereum Mining Hash Rate

GeForce GTX 980 Ti		22 Mh/s
Radeon HD 7870 XT		15 Mh/s
	Difference: 7 (47%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 XT		185 Watts
GeForce GTX 980 Ti		250 Watts
	Difference: 65 Watts (35%)

Memory Bandwidth

Theoretically, the GeForce GTX 980 Ti should perform much faster than the Radeon HD 7870 XT in general. (explain)

GeForce GTX 980 Ti		336000 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 144000 (75%)

Texel Rate

The GeForce GTX 980 Ti is much (approximately 98%) faster with regards to AF than the Radeon HD 7870 XT. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 87200 (98%)

Pixel Rate

The GeForce GTX 980 Ti should be much (approximately 224%) more effective at full screen anti-aliasing than the Radeon HD 7870 XT, and will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 66400 (224%)

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 largest amount of information (in units of MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 in one second. This is worked out by multiplying the total number of 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 applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.