Geforce GTX 670 vs Radeon HD 6870

Intro

Compare all of that to the Radeon HD 6870, which features core speeds of 900 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 memory. It features 1120 SPUs as well as 56 TAUs and 32 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

Geforce GTX 670		7351 points
Radeon HD 6870		2870 points
	Difference: 4481 (156%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6870		151 Watts
Geforce GTX 670		170 Watts
	Difference: 19 Watts (13%)

Memory Bandwidth

In theory, the Geforce GTX 670 is 43% faster than the Radeon HD 6870 in general, because of its greater data rate. (explain)

Geforce GTX 670		192000 MB/sec
Radeon HD 6870		134400 MB/sec
	Difference: 57600 (43%)

Texel Rate

The Geforce GTX 670 is quite a bit (more or less 103%) more effective at texture filtering than the Radeon HD 6870. (explain)

Geforce GTX 670		102480 Mtexels/sec
Radeon HD 6870		50400 Mtexels/sec
	Difference: 52080 (103%)

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 670 is superior to the Radeon HD 6870, though only just barely. (explain)

Geforce GTX 670		29280 Mpixels/sec
Radeon HD 6870		28800 Mpixels/sec
	Difference: 480 (2%)

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 MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 processed in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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