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GeForce GTX 465 vs GeForce GTX 580 3GB

Intro

The GeForce GTX 465 uses a 40 nm design. nVidia has set the core frequency at 607 MHz. The GDDR5 memory runs at a frequency of 802 MHz on this model. It features 352 SPUs as well as 44 TAUs and 32 ROPs.

Compare all of that to the GeForce GTX 580 3GB, which has clock speeds of 772 MHz on the GPU, and 1002 MHz on the 3072 MB of GDDR5 RAM. It features 512 SPUs along with 64 TAUs and 48 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 465 200 Watts
GeForce GTX 580 3GB 244 Watts
Difference: 44 Watts (22%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 580 3GB should theoretically be a lot better than the GeForce GTX 465 overall. (explain)

GeForce GTX 580 3GB 192384 MB/sec
GeForce GTX 465 102592 MB/sec
Difference: 89792 (88%)

Texel Rate

The GeForce GTX 580 3GB should be much (approximately 85%) better at anisotropic filtering than the GeForce GTX 465. (explain)

GeForce GTX 580 3GB 49408 Mtexels/sec
GeForce GTX 465 26708 Mtexels/sec
Difference: 22700 (85%)

Pixel Rate

The GeForce GTX 580 3GB is quite a bit (about 91%) faster with regards to AA than the GeForce GTX 465, and also able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 580 3GB 37056 Mpixels/sec
GeForce GTX 465 19424 Mpixels/sec
Difference: 17632 (91%)

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

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GeForce GTX 580 3GB

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 465 GeForce GTX 580 3GB
Manufacturer nVidia nVidia
Year May 2010 November 2010
Code Name GF100 GF110
Memory 1024 MB 3072 MB
Core Speed 607 MHz 772 MHz
Memory Speed 3208 MHz 4008 MHz
Power (Max TDP) 200 watts 244 watts
Bandwidth 102592 MB/sec 192384 MB/sec
Texel Rate 26708 Mtexels/sec 49408 Mtexels/sec
Pixel Rate 19424 Mpixels/sec 37056 Mpixels/sec
Unified Shaders 352 512
Texture Mapping Units 44 64
Render Output Units 32 48
Bus Type GDDR5 GDDR5
Bus Width 256-bit 384-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 3000 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics 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 maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends 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 465

Amazon.com

Check prices at:

GeForce GTX 580 3GB

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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