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GeForce GTX 650 vs Geforce GTX 690

Intro

The GeForce GTX 650 features a GPU clock speed of 1058 MHz, and the 1024 MB of GDDR5 RAM is set to run at 1250 MHz through a 128-bit bus. It also features 384 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Compare that to the Geforce GTX 690, which comes with GPU clock speed of 915 MHz, and 2048 MB of GDDR5 memory running at 1502 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 128 TAUs, and 32 ROPs.

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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 690 13111 points
GeForce GTX 650 2263 points
Difference: 10848 (479%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
Geforce GTX 690 300 Watts
Difference: 236 Watts (369%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 690 should in theory be a lot better than the GeForce GTX 650 overall. (explain)

Geforce GTX 690 384512 MB/sec
GeForce GTX 650 80000 MB/sec
Difference: 304512 (381%)

Texel Rate

The Geforce GTX 690 should be quite a bit (approximately 592%) more effective at anisotropic filtering than the GeForce GTX 650. (explain)

Geforce GTX 690 234240 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 200384 (592%)

Pixel Rate

The Geforce GTX 690 is quite a bit (about 246%) more effective at AA than the GeForce GTX 650, and also able to handle higher screen resolutions without losing too much performance. (explain)

Geforce GTX 690 58560 Mpixels/sec
GeForce GTX 650 16928 Mpixels/sec
Difference: 41632 (246%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX 650

Amazon.com

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Geforce GTX 690

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 650 Geforce GTX 690
Manufacturer nVidia nVidia
Year September 2012 April 2012
Code Name GK107 GK104
Memory 1024 MB 2048 MB (x2)
Core Speed 1058 MHz 915 MHz (x2)
Memory Speed 5000 MHz 6008 MHz (x2)
Power (Max TDP) 64 watts 300 watts
Bandwidth 80000 MB/sec 384512 MB/sec
Texel Rate 33856 Mtexels/sec 234240 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 58560 Mpixels/sec
Unified Shaders 384 1536 (x2)
Texture Mapping Units 32 128 (x2)
Render Output Units 16 32 (x2)
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit (x2)
Fab Process 28 nm 28 nm
Transistors 1300 million 3540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.3 OpenGL 4.2

Memory Bandwidth: Bandwidth is the max amount of data (counted in megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core 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 is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 650

Amazon.com

Check prices at:

Geforce GTX 690

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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