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GeForce GTX 465 vs GeForce GTX 650

Intro

The GeForce GTX 465 has core speeds of 607 MHz on the GPU, and 802 MHz on the 1024 MB of GDDR5 RAM. It features 352 SPUs along with 44 TAUs and 32 ROPs.

Compare those specifications to the GeForce GTX 650, which uses a 28 nm design. nVidia has clocked the core frequency at 1058 MHz. The GDDR5 memory works at a frequency of 1250 MHz on this particular model. It features 384 SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

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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

The GeForce GTX 465, in theory, should be a lot faster than the GeForce GTX 650 overall. (explain)

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

Texel Rate

The GeForce GTX 650 will be much (about 27%) better at anisotropic filtering 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 should be a little bit (more or less 15%) faster with regards to AA than the GeForce GTX 650, and also able to handle higher resolutions more effectively. (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: Memory bandwidth is the max amount of data (counted in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out 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 fill rate is also dependant on lots of 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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