Geforce GTX 770 vs Radeon HD 7970

Intro

Compare those specifications to the Radeon HD 7970, which has clock speeds of 925 MHz on the GPU, and 1375 MHz on the 3072 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

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 7970		8225 points
Geforce GTX 770		7854 points
	Difference: 371 (5%)

Ethereum Mining Hash Rate

Radeon HD 7970		21 Mh/s
Geforce GTX 770		14 Mh/s
	Difference: 7 (50%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 770		230 Watts
Radeon HD 7970		250 Watts
	Difference: 20 Watts (9%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7970 should in theory be a small bit better than the Geforce GTX 770 in general. (explain)

Radeon HD 7970		264000 MB/sec
Geforce GTX 770		224384 MB/sec
	Difference: 39616 (18%)

Texel Rate

The Geforce GTX 770 will be a little bit (approximately 13%) better at texture filtering than the Radeon HD 7970. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon HD 7970		118400 Mtexels/sec
	Difference: 15488 (13%)

Pixel Rate

The Geforce GTX 770 should be a little bit (approximately 13%) faster with regards to FSAA than the Radeon HD 7970, and will be able to handle higher screen resolutions while still performing well. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 3872 (13%)

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 max amount of information (measured in MB per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics 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 the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.