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GeForce GTX 460 vs GeForce GTX 465

Intro

The GeForce GTX 460 has a core clock frequency of 675 MHz and a GDDR5 memory speed of 900 MHz. It also makes use of a 192-bit memory bus, and uses a 40 nm design. It is comprised of 336 SPUs, 56 TAUs, and 24 ROPs.

Compare those specs to the GeForce GTX 465, which uses a 40 nm design. nVidia has clocked the core frequency at 607 MHz. The GDDR5 memory runs at a speed of 802 MHz on this particular card. It features 352 SPUs as well as 44 Texture Address Units and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 150 Watts
GeForce GTX 465 200 Watts
Difference: 50 Watts (33%)

Memory Bandwidth

The GeForce GTX 465, in theory, should perform a bit faster than the GeForce GTX 460 overall. (explain)

GeForce GTX 465 102592 MB/sec
GeForce GTX 460 86400 MB/sec
Difference: 16192 (19%)

Texel Rate

The GeForce GTX 460 should be quite a bit (more or less 42%) faster with regards to AF than the GeForce GTX 465. (explain)

GeForce GTX 460 37800 Mtexels/sec
GeForce GTX 465 26708 Mtexels/sec
Difference: 11092 (42%)

Pixel Rate

The GeForce GTX 465 is just a bit (about 20%) more effective at anti-aliasing than the GeForce GTX 460, and also should be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 465 19424 Mpixels/sec
GeForce GTX 460 16200 Mpixels/sec
Difference: 3224 (20%)

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 460

Amazon.com

Check prices at:

GeForce GTX 465

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 460 GeForce GTX 465
Manufacturer nVidia nVidia
Year July 2010 May 2010
Code Name GF104 GF100
Memory 768 MB 1024 MB
Core Speed 675 MHz 607 MHz
Memory Speed 3600 MHz 3208 MHz
Power (Max TDP) 150 watts 200 watts
Bandwidth 86400 MB/sec 102592 MB/sec
Texel Rate 37800 Mtexels/sec 26708 Mtexels/sec
Pixel Rate 16200 Mpixels/sec 19424 Mpixels/sec
Unified Shaders 336 352
Texture Mapping Units 56 44
Render Output Units 24 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 1950 million 3000 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units 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 video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460

Amazon.com

Check prices at:

GeForce GTX 465

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.

Comments

One Response to “GeForce GTX 460 vs GeForce GTX 465”
acid jones says:

Thanks for the great review, precise and concise and the explanations at the end really helped

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