Geforce GTX 780 vs Radeon HD 6770

Intro

Compare that to the Radeon HD 6770, which has core speeds of 900 MHz on the GPU, and 1050 MHz on the 512 MB of GDDR5 memory. It features 800 SPUs along with 40 Texture Address Units and 16 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

Geforce GTX 780		10082 points
Radeon HD 6770		1520 points
	Difference: 8562 (563%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
Geforce GTX 780		250 Watts
	Difference: 142 Watts (131%)

Memory Bandwidth

Performance-wise, the Geforce GTX 780 should theoretically be a lot superior to the Radeon HD 6770 in general. (explain)

Geforce GTX 780		288384 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 221184 (329%)

Texel Rate

The Geforce GTX 780 should be a lot (approximately 360%) faster with regards to anisotropic filtering than the Radeon HD 6770. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 129696 (360%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 780 is superior to the Radeon HD 6770, and very much so. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 27024 (188%)

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 megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, 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 most pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number 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 filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.