Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

Radeon HD 6970 vs Radeon HD 7950 3GB

Intro

The Radeon HD 6970 has core speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs along with 96 Texture Address Units and 32 ROPs.

Compare all that to the Radeon HD 7950 3GB, which uses a 28 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this card. It features 1792 SPUs along with 112 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7950 3GB 200 Watts
Radeon HD 6970 250 Watts
Difference: 50 Watts (25%)

Memory Bandwidth

The Radeon HD 7950 3GB, in theory, should be much faster than the Radeon HD 6970 in general. (explain)

Radeon HD 7950 3GB 240000 MB/sec
Radeon HD 6970 176000 MB/sec
Difference: 64000 (36%)

Texel Rate

The Radeon HD 7950 3GB will be a small bit (about 6%) faster with regards to anisotropic filtering than the Radeon HD 6970. (explain)

Radeon HD 7950 3GB 89600 Mtexels/sec
Radeon HD 6970 84480 Mtexels/sec
Difference: 5120 (6%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 6970 is a better choice, but only just. (explain)

Radeon HD 6970 28160 Mpixels/sec
Radeon HD 7950 3GB 25600 Mpixels/sec
Difference: 2560 (10%)

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

Display Prices

Hide Prices

Radeon HD 6970

Amazon.com

Radeon HD 7950 3GB

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Display Specifications

Hide Specifications

Model Radeon HD 6970 Radeon HD 7950 3GB
Manufacturer AMD AMD
Year December 2010 January 2012
Code Name Cayman XT Tahiti Pro
Memory 2048 MB 3072 MB
Core Speed 880 MHz 800 MHz
Memory Speed 5500 MHz 5000 MHz
Power (Max TDP) 250 watts 200 watts
Bandwidth 176000 MB/sec 240000 MB/sec
Texel Rate 84480 Mtexels/sec 89600 Mtexels/sec
Pixel Rate 28160 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 1536 1792
Texture Mapping Units 96 112
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 384-bit
Fab Process 40 nm 28 nm
Transistors 2640 million 4313 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *

*


You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

WordPress Anti-Spam by WP-SpamShield


[X]
[X]