Radeon HD 6970 vs Radeon HD 7750

Intro

Compare all that to the Radeon HD 7750, which makes use of a 28 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 memory is set to run at a frequency of 1125 MHz on this card. It features 512 SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

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 6970		3470 points
Radeon HD 7750		2240 points
	Difference: 1230 (55%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon HD 6970		250 Watts
	Difference: 195 Watts (355%)

Memory Bandwidth

Performance-wise, the Radeon HD 6970 should theoretically be quite a bit superior to the Radeon HD 7750 overall. (explain)

Radeon HD 6970		176000 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 104000 (144%)

Texel Rate

The Radeon HD 6970 should be quite a bit (approximately 230%) better at AF than the Radeon HD 7750. (explain)

Radeon HD 6970		84480 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 58880 (230%)

Pixel Rate

The Radeon HD 6970 should be quite a bit (approximately 120%) faster with regards to AA than the Radeon HD 7750, and should be able to handle higher resolutions more effectively. (explain)

Radeon HD 6970		28160 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 15360 (120%)

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 moved across the external memory interface in one second. The number is calculated 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 DDR5, multiply by ANOTHER 2x. The higher the 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 number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount 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 filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.