Radeon HD 6770 vs Radeon R9 280X

Intro

Compare that to the Radeon R9 280X, which makes use of a 28 nm design. AMD has set the core frequency at 850 MHz. The GDDR5 memory works at a speed of 1500 MHz on this particular model. It features 2048 SPUs along with 128 TAUs 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 R9 280X		8886 points
Radeon HD 6770		1520 points
	Difference: 7366 (485%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
Radeon R9 280X		250 Watts
	Difference: 142 Watts (131%)

Memory Bandwidth

In theory, the Radeon R9 280X should be quite a bit faster than the Radeon HD 6770 in general. (explain)

Radeon R9 280X		288000 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 220800 (329%)

Texel Rate

The Radeon R9 280X should be a lot (more or less 202%) faster with regards to anisotropic filtering than the Radeon HD 6770. (explain)

Radeon R9 280X		108800 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 72800 (202%)

Pixel Rate

The Radeon R9 280X will be quite a bit (approximately 89%) faster with regards to full screen anti-aliasing than the Radeon HD 6770, and also able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 280X		27200 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 12800 (89%)

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 MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, the result should 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units by the core 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 the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.