Geforce GTX 670 vs Radeon HD 7950

Intro

Compare all that to the Radeon HD 7950, which makes use of a 28 nm design. AMD has set the core speed at 800 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this specific model. It features 1792 SPUs as well as 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 670		7351 points
	Difference: 380 (5%)

Ethereum Mining Hash Rate

Radeon HD 7950		21 Mh/s
Geforce GTX 670		13 Mh/s
	Difference: 8 (62%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670		170 Watts
Radeon HD 7950		200 Watts
	Difference: 30 Watts (18%)

Memory Bandwidth

The Radeon HD 7950 should in theory be much faster than the Geforce GTX 670 overall. (explain)

Radeon HD 7950		240000 MB/sec
Geforce GTX 670		192000 MB/sec
	Difference: 48000 (25%)

Texel Rate

The Geforce GTX 670 is just a bit (about 14%) faster with regards to texture filtering than the Radeon HD 7950. (explain)

Geforce GTX 670		102480 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 12880 (14%)

Pixel Rate

If running with a high screen resolution is important to you, then the Geforce GTX 670 is a better choice, though only just barely. (explain)

Geforce GTX 670		29280 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 3680 (14%)

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 data (measured in MB per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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