Compare any two graphics cards:
VS

Radeon HD 6750 vs Radeon HD 7950

Intro

The Radeon HD 6750 features a core clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It is comprised of 720 SPUs, 36 TAUs, and 16 Raster Operation Units.

Compare that to the Radeon HD 7950, which comes with clock speeds of 800 MHz on the GPU, and 1250 MHz on the 1536 MB of GDDR5 memory. It features 1792 SPUs along with 112 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 86 Watts
Radeon HD 7950 200 Watts
Difference: 114 Watts (133%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7950 should perform a lot faster than the Radeon HD 6750 in general. (explain)

Radeon HD 7950 240000 MB/sec
Radeon HD 6750 64000 MB/sec
Difference: 176000 (275%)

Texel Rate

The Radeon HD 7950 should be a lot (approximately 243%) better at texture filtering than the Radeon HD 6750. (explain)

Radeon HD 7950 89600 Mtexels/sec
Radeon HD 6750 26100 Mtexels/sec
Difference: 63500 (243%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 7950 is a better choice, by a large margin. (explain)

Radeon HD 7950 25600 Mpixels/sec
Radeon HD 6750 11600 Mpixels/sec
Difference: 14000 (121%)

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 6750

Amazon.com

Check prices at:

Radeon HD 7950

Amazon.com

Check prices at:

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 6750 Radeon HD 7950
Manufacturer AMD AMD
Year January 2011 January 2012
Code Name Juniper Pro Tahiti Pro
Memory 512 MB 1536 MB
Core Speed 725 MHz 800 MHz
Memory Speed 4000 MHz 5000 MHz
Power (Max TDP) 86 watts 200 watts
Bandwidth 64000 MB/sec 240000 MB/sec
Texel Rate 26100 Mtexels/sec 89600 Mtexels/sec
Pixel Rate 11600 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 720 1792
Texture Mapping Units 36 112
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 384-bit
Fab Process 40 nm 28 nm
Transistors 1040 million 4313 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.0 OpenGL 4.2

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 can be applied per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 6750

Amazon.com

Check prices at:

Radeon HD 7950

Amazon.com

Check prices at:

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.

Comments

Be the first to leave a comment!

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


*

WordPress Anti Spam by WP-SpamShield