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GeForce GTX 650 Ti 2GB vs Radeon HD 6670 (OEM) 1GB


Intro

The GeForce GTX 650 Ti 2GB uses a 28 nm design. nVidia has clocked the core frequency at 928 MHz. The GDDR5 RAM runs at a speed of 1350 MHz on this particular card. It features 768 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.

Compare those specs to the Radeon HD 6670 (OEM) 1GB, which features a clock speed of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It features 480 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 1GB 63 Watts
GeForce GTX 650 Ti 2GB 110 Watts
Difference: 47 Watts (75%)

Memory Bandwidth

Performance-wise, the GeForce GTX 650 Ti 2GB should theoretically be a lot superior to the Radeon HD 6670 (OEM) 1GB in general. (explain)

GeForce GTX 650 Ti 2GB 86400 MB/sec
Radeon HD 6670 (OEM) 1GB 64000 MB/sec
Difference: 22400 (35%)

Texel Rate

The GeForce GTX 650 Ti 2GB will be much (more or less 209%) more effective at anisotropic filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
Radeon HD 6670 (OEM) 1GB 19200 Mtexels/sec
Difference: 40192 (209%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 650 Ti 2GB is a better choice, and very much so. (explain)

GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
Radeon HD 6670 (OEM) 1GB 6400 Mpixels/sec
Difference: 8448 (132%)

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 650 Ti 2GB

Amazon.com

Radeon HD 6670 (OEM) 1GB

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

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Model GeForce GTX 650 Ti 2GB Radeon HD 6670 (OEM) 1GB
Manufacturer nVidia AMD
Year October 2012 February 2011
Code Name GK106 Turks
Memory 2048 MB 1024 MB
Core Speed 928 MHz 800 MHz
Memory Speed 5400 MHz 4000 MHz
Power (Max TDP) 110 watts 63 watts
Bandwidth 86400 MB/sec 64000 MB/sec
Texel Rate 59392 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 14848 Mpixels/sec 6400 Mpixels/sec
Unified Shaders 768 480
Texture Mapping Units 64 24
Render Output Units 16 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 40 nm
Transistors 2540 million 715 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.3 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 applied in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video 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 most pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 650 Ti 2GB

Amazon.com

Radeon HD 6670 (OEM) 1GB

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.

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