GeForce GTX 780 Ti vs Radeon HD 6950

Intro

Compare those specifications to the Radeon HD 6950, which makes use of a 40 nm design. AMD has set the core speed at 800 MHz. The GDDR5 RAM is set to run at a speed of 1250 MHz on this model. It features 1408 SPUs as well as 88 TAUs and 32 Rasterization Operator 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 Ti		10900 points
Radeon HD 6950		3240 points
	Difference: 7660 (236%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6950		200 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 50 Watts (25%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 780 Ti should perform a lot faster than the Radeon HD 6950 overall. (explain)

GeForce GTX 780 Ti		336000 MB/sec
Radeon HD 6950		160000 MB/sec
	Difference: 176000 (110%)

Texel Rate

The GeForce GTX 780 Ti is quite a bit (approximately 198%) better at texture filtering than the Radeon HD 6950. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
Radeon HD 6950		70400 Mtexels/sec
	Difference: 139600 (198%)

Pixel Rate

The GeForce GTX 780 Ti is quite a bit (about 64%) more effective at full screen anti-aliasing than the Radeon HD 6950, and also should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
Radeon HD 6950		25600 Mpixels/sec
	Difference: 16400 (64%)

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 over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video 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 chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.