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GeForce GTX 465 vs Radeon HD 5830

Intro

The GeForce GTX 465 features a core clock frequency of 607 MHz and a GDDR5 memory frequency of 802 MHz. It also uses a 256-bit bus, and uses a 40 nm design. It is comprised of 352 SPUs, 44 TAUs, and 32 Raster Operation Units.

Compare those specs to the Radeon HD 5830, which features core speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 1120(224x5) SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5830 175 Watts
GeForce GTX 465 200 Watts
Difference: 25 Watts (14%)

Memory Bandwidth

Theoretically, the Radeon HD 5830 should be a lot faster than the GeForce GTX 465 in general. (explain)

Radeon HD 5830 128000 MB/sec
GeForce GTX 465 102592 MB/sec
Difference: 25408 (25%)

Texel Rate

The Radeon HD 5830 is much (more or less 68%) faster with regards to AF than the GeForce GTX 465. (explain)

Radeon HD 5830 44800 Mtexels/sec
GeForce GTX 465 26708 Mtexels/sec
Difference: 18092 (68%)

Pixel Rate

The GeForce GTX 465 should be quite a bit (more or less 52%) better at full screen anti-aliasing than the Radeon HD 5830, and should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 465 19424 Mpixels/sec
Radeon HD 5830 12800 Mpixels/sec
Difference: 6624 (52%)

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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Radeon HD 5830

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 Radeon HD 5830
Manufacturer nVidia AMD
Year May 2010 February 25, 2010
Code Name GF100 Cypress LE
Memory 1024 MB 1024 MB
Core Speed 607 MHz 800 MHz
Memory Speed 3208 MHz 4000 MHz
Power (Max TDP) 200 watts 175 watts
Bandwidth 102592 MB/sec 128000 MB/sec
Texel Rate 26708 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 19424 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 352 1120(224x5)
Texture Mapping Units 44 56
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 2154 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 number of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the 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:

Radeon HD 5830

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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