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GeForce GTX 260 vs Radeon HD 5830

Intro

The GeForce GTX 260 makes use of a 65 nm design. nVidia has clocked the core frequency at 576 MHz. The GDDR3 RAM works at a speed of 999 MHz on this model. It features 192 SPUs as well as 64 Texture Address Units and 28 Rasterization Operator Units.

Compare that to the Radeon HD 5830, which has a core clock frequency of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It is comprised of 1120(224x5) SPUs, 56 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5830 175 Watts
GeForce GTX 260 182 Watts
Difference: 7 Watts (4%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 should be just a bit faster than the GeForce GTX 260 overall. (explain)

Radeon HD 5830 128000 MB/sec
GeForce GTX 260 111888 MB/sec
Difference: 16112 (14%)

Texel Rate

The Radeon HD 5830 will be a lot (approximately 22%) more effective at texture filtering than the GeForce GTX 260. (explain)

Radeon HD 5830 44800 Mtexels/sec
GeForce GTX 260 36864 Mtexels/sec
Difference: 7936 (22%)

Pixel Rate

The GeForce GTX 260 should be quite a bit (approximately 26%) faster with regards to FSAA than the Radeon HD 5830, and will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 260 16128 Mpixels/sec
Radeon HD 5830 12800 Mpixels/sec
Difference: 3328 (26%)

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 260

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 260 Radeon HD 5830
Manufacturer nVidia AMD
Year June 16, 2008 February 25, 2010
Code Name G200 Cypress LE
Memory 896 MB 1024 MB
Core Speed 576 MHz 800 MHz
Memory Speed 1998 MHz 4000 MHz
Power (Max TDP) 182 watts 175 watts
Bandwidth 111888 MB/sec 128000 MB/sec
Texel Rate 36864 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 192 1120(224x5)
Texture Mapping Units 64 56
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 65 nm 40 nm
Transistors 1400 million 2154 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video 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 the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 260

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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