Geforce GTX 770 vs Radeon HD 7950

Intro

Compare those specifications to the Radeon HD 7950, which features a clock frequency of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also uses a 384-bit bus, and uses a 28 nm design. It is made up of 1792 SPUs, 112 TAUs, and 32 ROPs.

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 770		7854 points
Radeon HD 7950		7731 points
	Difference: 123 (2%)

Ethereum Mining Hash Rate

Radeon HD 7950		21 Mh/s
Geforce GTX 770		14 Mh/s
	Difference: 7 (50%)

Zcash Mining Hash Rate

Radeon HD 7950		235 Sol/s
Geforce GTX 770		70 Sol/s
	Difference: 165 (236%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7950		200 Watts
Geforce GTX 770		230 Watts
	Difference: 30 Watts (15%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7950 should in theory be a little bit superior to the Geforce GTX 770 overall. (explain)

Radeon HD 7950		240000 MB/sec
Geforce GTX 770		224384 MB/sec
	Difference: 15616 (7%)

Texel Rate

The Geforce GTX 770 is quite a bit (more or less 49%) faster with regards to AF than the Radeon HD 7950. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 44288 (49%)

Pixel Rate

The Geforce GTX 770 should be a lot (about 31%) faster with regards to FSAA than the Radeon HD 7950, and also capable of handling higher screen resolutions without losing too much performance. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 7872 (31%)

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 megabytes per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on 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 ability to reach the max fill rate.