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GeForce GTX 465 vs GeForce GTX 650

Intro

The GeForce GTX 465 features a GPU clock speed of 607 MHz, and the 1024 MB of GDDR5 RAM runs at 802 MHz through a 256-bit bus. It also is made up of 352 SPUs, 44 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the GeForce GTX 650, which features GPU clock speed of 1058 MHz, and 1024 MB of GDDR5 RAM set to run at 1250 MHz through a 128-bit bus. It also is comprised of 384 Stream Processors, 32 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce GTX 465 200 Watts
Difference: 136 Watts (213%)

Memory Bandwidth

Theoretically, the GeForce GTX 465 should perform much faster than the GeForce GTX 650 in general. (explain)

GeForce GTX 465 102592 MB/sec
GeForce GTX 650 80000 MB/sec
Difference: 22592 (28%)

Texel Rate

The GeForce GTX 650 is quite a bit (approximately 27%) faster with regards to AF than the GeForce GTX 465. (explain)

GeForce GTX 650 33856 Mtexels/sec
GeForce GTX 465 26708 Mtexels/sec
Difference: 7148 (27%)

Pixel Rate

The GeForce GTX 465 is a little bit (more or less 15%) faster with regards to FSAA than the GeForce GTX 650, and able to handle higher resolutions better. (explain)

GeForce GTX 465 19424 Mpixels/sec
GeForce GTX 650 16928 Mpixels/sec
Difference: 2496 (15%)

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 465

Amazon.com

Check prices at:

GeForce GTX 650

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 465 GeForce GTX 650
Manufacturer nVidia nVidia
Year May 2010 September 2012
Code Name GF100 GK107
Memory 1024 MB 1024 MB
Core Speed 607 MHz 1058 MHz
Memory Speed 3208 MHz 5000 MHz
Power (Max TDP) 200 watts 64 watts
Bandwidth 102592 MB/sec 80000 MB/sec
Texel Rate 26708 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 19424 Mpixels/sec 16928 Mpixels/sec
Unified Shaders 352 384
Texture Mapping Units 44 32
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 1300 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 can be applied per second. This is calculated by multiplying the total amount of texture units by the core 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GTX 465

Amazon.com

Check prices at:

GeForce GTX 650

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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