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Radeon HD 6750 1GB vs Radeon R7 250

Intro

The Radeon HD 6750 1GB comes with a GPU core speed of 725 MHz, and the 1024 MB of GDDR5 RAM runs at 1000 MHz through a 128-bit bus. It also features 720 Stream Processors, 36 Texture Address Units, and 16 Raster Operation Units.

Compare that to the Radeon R7 250, which makes use of a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory works at a frequency of 1150 MHz on this card. It features 384 SPUs as well as 24 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250 65 Watts
Radeon HD 6750 1GB 86 Watts
Difference: 21 Watts (32%)

Memory Bandwidth

The Radeon R7 250, in theory, should perform a bit faster than the Radeon HD 6750 1GB overall. (explain)

Radeon R7 250 73600 MB/sec
Radeon HD 6750 1GB 64000 MB/sec
Difference: 9600 (15%)

Texel Rate

The Radeon HD 6750 1GB is a little bit (about 9%) faster with regards to AF than the Radeon R7 250. (explain)

Radeon HD 6750 1GB 26100 Mtexels/sec
Radeon R7 250 24000 Mtexels/sec
Difference: 2100 (9%)

Pixel Rate

The Radeon HD 6750 1GB is quite a bit (approximately 45%) faster with regards to FSAA than the Radeon R7 250, and will be able to handle higher resolutions better. (explain)

Radeon HD 6750 1GB 11600 Mpixels/sec
Radeon R7 250 8000 Mpixels/sec
Difference: 3600 (45%)

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

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Radeon HD 6750 1GB

Amazon.com

Check prices at:

Radeon R7 250

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

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Model Radeon HD 6750 1GB Radeon R7 250
Manufacturer AMD AMD
Year January 2011 October 2013
Code Name Juniper Pro Oland XT
Memory 1024 MB 1024 MB
Core Speed 725 MHz 1000 MHz
Memory Speed 4000 MHz 4600 MHz
Power (Max TDP) 86 watts 65 watts
Bandwidth 64000 MB/sec 73600 MB/sec
Texel Rate 26100 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 11600 Mpixels/sec 8000 Mpixels/sec
Unified Shaders 720 384
Texture Mapping Units 36 24
Render Output Units 16 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1040 million 1040 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, 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 that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6750 1GB

Amazon.com

Check prices at:

Radeon R7 250

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.

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