GeForce GTX 750 vs Radeon HD 7770

Intro

Compare those specs to the Radeon HD 7770, which comes with a clock speed of 1000 MHz and a GDDR5 memory frequency of 1125 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 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 750		3958 points
Radeon HD 7770		3180 points
	Difference: 778 (24%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Radeon HD 7770		80 Watts
	Difference: 25 Watts (45%)

Memory Bandwidth

In theory, the GeForce GTX 750 should perform a small bit faster than the Radeon HD 7770 in general. (explain)

GeForce GTX 750		80000 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 8000 (11%)

Texel Rate

The Radeon HD 7770 should be a lot (about 23%) faster with regards to anisotropic filtering than the GeForce GTX 750. (explain)

Radeon HD 7770		40000 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 7360 (23%)

Pixel Rate

The GeForce GTX 750 will be a small bit (approximately 2%) faster with regards to anti-aliasing than the Radeon HD 7770, and should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 750		16320 Mpixels/sec
Radeon HD 7770		16000 Mpixels/sec
	Difference: 320 (2%)

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 max amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.