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GeForce GTX 750 Ti vs Radeon HD 3870 1GB

Intro

The GeForce GTX 750 Ti has core clock speeds of 1020 MHz on the GPU, and 1350 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the Radeon HD 3870 1GB, which uses a 55 nm design. AMD has clocked the core frequency at 775 MHz. The GDDR4 RAM works at a speed of 1125 MHz on this particular card. It features 320(64x5) SPUs as well as 16 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti 60 Watts
Radeon HD 3870 1GB 106 Watts
Difference: 46 Watts (77%)

Memory Bandwidth

In theory, the GeForce GTX 750 Ti is 20% faster than the Radeon HD 3870 1GB in general, due to its greater bandwidth. (explain)

GeForce GTX 750 Ti 86400 MB/sec
Radeon HD 3870 1GB 72000 MB/sec
Difference: 14400 (20%)

Texel Rate

The GeForce GTX 750 Ti will be much (more or less 229%) more effective at AF than the Radeon HD 3870 1GB. (explain)

GeForce GTX 750 Ti 40800 Mtexels/sec
Radeon HD 3870 1GB 12400 Mtexels/sec
Difference: 28400 (229%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 750 Ti is a better choice, by far. (explain)

GeForce GTX 750 Ti 16320 Mpixels/sec
Radeon HD 3870 1GB 12400 Mpixels/sec
Difference: 3920 (32%)

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 Ti

Amazon.com

Check prices at:

Radeon HD 3870 1GB

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 GeForce GTX 750 Ti Radeon HD 3870 1GB
Manufacturer nVidia AMD
Year February 2014 Nov 19, 2007
Code Name GM107 RV670 XT
Memory 2048 MB 1024 MB
Core Speed 1020 MHz 775 MHz
Memory Speed 5400 MHz 2250 MHz
Power (Max TDP) 60 watts 106 watts
Bandwidth 86400 MB/sec 72000 MB/sec
Texel Rate 40800 Mtexels/sec 12400 Mtexels/sec
Pixel Rate 16320 Mpixels/sec 12400 Mpixels/sec
Unified Shaders 640 320(64x5)
Texture Mapping Units 40 16
Render Output Units 16 16
Bus Type GDDR5 GDDR4
Bus Width 128-bit 256-bit
Fab Process 28 nm 55 nm
Transistors 1870 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 2.0 x16/AGP 8x
DirectX Version DirectX 11.0 DirectX 10.1
OpenGL Version OpenGL 4.4 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 750 Ti

Amazon.com

Check prices at:

Radeon HD 3870 1GB

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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