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GeForce GTX 750 vs Radeon HD 6870

Intro

The GeForce GTX 750 has a GPU clock speed of 1020 MHz, and the 1024 MB of GDDR5 RAM is set to run at 1250 MHz through a 128-bit bus. It also is made up of 512 SPUs, 32 TAUs, and 16 Raster Operation Units.

Compare those specs to the Radeon HD 6870, which has clock speeds of 900 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 RAM. It features 1120 SPUs along with 56 Texture Address Units and 32 Rasterization Operator Units.

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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

GeForce GTX 750 3958 points
Radeon HD 6870 2870 points
Difference: 1088 (38%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 55 Watts
Radeon HD 6870 151 Watts
Difference: 96 Watts (175%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6870 should be 68% faster than the GeForce GTX 750 overall, due to its higher bandwidth. (explain)

Radeon HD 6870 134400 MB/sec
GeForce GTX 750 80000 MB/sec
Difference: 54400 (68%)

Texel Rate

The Radeon HD 6870 should be much (about 54%) faster with regards to anisotropic filtering than the GeForce GTX 750. (explain)

Radeon HD 6870 50400 Mtexels/sec
GeForce GTX 750 32640 Mtexels/sec
Difference: 17760 (54%)

Pixel Rate

The Radeon HD 6870 will be quite a bit (about 76%) more effective at FSAA than the GeForce GTX 750, and will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon HD 6870 28800 Mpixels/sec
GeForce GTX 750 16320 Mpixels/sec
Difference: 12480 (76%)

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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GeForce GTX 750

Amazon.com

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Radeon HD 6870

Amazon.com

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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 GeForce GTX 750 Radeon HD 6870
Manufacturer nVidia AMD
Year February 2014 October 2010
Code Name GM107 Barts XT
Memory 1024 MB 1024 MB
Core Speed 1020 MHz 900 MHz
Memory Speed 5000 MHz 4200 MHz
Power (Max TDP) 55 watts 151 watts
Bandwidth 80000 MB/sec 134400 MB/sec
Texel Rate 32640 Mtexels/sec 50400 Mtexels/sec
Pixel Rate 16320 Mpixels/sec 28800 Mpixels/sec
Unified Shaders 512 1120
Texture Mapping Units 32 56
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 28 nm 40 nm
Transistors 1870 million 1700 million
Bus PCIe 3.0 x16 PCIe x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.4 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 processed in one second. This figure is worked out 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 750

Amazon.com

Check prices at:

Radeon HD 6870

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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