Geforce GTX 780 vs Radeon HD 6970

Intro

Compare those specifications to the Radeon HD 6970, which has a clock frequency of 880 MHz and a GDDR5 memory frequency of 1375 MHz. It also makes use of a 256-bit memory bus, and uses a 40 nm design. It features 1536 SPUs, 96 TAUs, and 32 Raster Operation Units.

Display Graphs

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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 780		10082 points
Radeon HD 6970		3470 points
	Difference: 6612 (191%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The Geforce GTX 780 should in theory perform a lot faster than the Radeon HD 6970 in general. (explain)

Geforce GTX 780		288384 MB/sec
Radeon HD 6970		176000 MB/sec
	Difference: 112384 (64%)

Texel Rate

The Geforce GTX 780 is a lot (more or less 96%) faster with regards to anisotropic filtering than the Radeon HD 6970. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon HD 6970		84480 Mtexels/sec
	Difference: 81216 (96%)

Pixel Rate

The Geforce GTX 780 will be a lot (more or less 47%) better at AA than the Radeon HD 6970, and capable of handling higher screen resolutions without slowing down too much. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon HD 6970		28160 Mpixels/sec
	Difference: 13264 (47%)

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 maximum amount of data (measured in MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 applied per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.