GeForce GTX 750 vs Radeon HD 7950

Intro

Compare that to the Radeon HD 7950, which comes with core clock speeds of 800 MHz on the GPU, and 1250 MHz on the 1536 MB of GDDR5 memory. It features 1792 SPUs along with 112 Texture Address Units 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

Radeon HD 7950		7731 points
GeForce GTX 750		3958 points
	Difference: 3773 (95%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Radeon HD 7950		200 Watts
	Difference: 145 Watts (264%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7950 should perform a lot faster than the GeForce GTX 750 overall. (explain)

Radeon HD 7950		240000 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 160000 (200%)

Texel Rate

The Radeon HD 7950 will be much (more or less 175%) better at anisotropic filtering than the GeForce GTX 750. (explain)

Radeon HD 7950		89600 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 56960 (175%)

Pixel Rate

The Radeon HD 7950 is much (about 57%) better at full screen anti-aliasing than the GeForce GTX 750, and also should be capable of handling higher resolutions while still performing well. (explain)

Radeon HD 7950		25600 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 9280 (57%)

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. The number is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.