Geforce GTX 680 vs Radeon HD 7950

Intro

Compare that to the Radeon HD 7950, which uses a 28 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 RAM works at a speed of 1250 MHz on this model. It features 1792 SPUs along with 112 Texture Address Units 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

Radeon HD 7950		7731 points
Geforce GTX 680		7650 points
	Difference: 81 (1%)

Ethereum Mining Hash Rate

Radeon HD 7950		21 Mh/s
Geforce GTX 680		16 Mh/s
	Difference: 5 (31%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 680		195 Watts
Radeon HD 7950		200 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

Performance-wise, the Radeon HD 7950 should theoretically be a lot better than the Geforce GTX 680 in general. (explain)

Radeon HD 7950		240000 MB/sec
Geforce GTX 680		192256 MB/sec
	Difference: 47744 (25%)

Texel Rate

The Geforce GTX 680 should be quite a bit (approximately 44%) more effective at AF than the Radeon HD 7950. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 39168 (44%)

Pixel Rate

The Geforce GTX 680 should be much (approximately 26%) faster with regards to FSAA than the Radeon HD 7950, and capable of handling higher resolutions without losing too much performance. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 6592 (26%)

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 maximum amount of information (counted in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.