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GeForce GTX 260 vs Radeon HD 5770

Intro

The GeForce GTX 260 has a core clock speed of 576 MHz and a GDDR3 memory speed of 999 MHz. It also makes use of a 448-bit memory bus, and uses a 65 nm design. It features 192 SPUs, 64 TAUs, and 28 Raster Operation Units.

Compare all that to the Radeon HD 5770, which uses a 40 nm design. AMD has set the core frequency at 850 MHz. The GDDR5 RAM is set to run at a speed of 1200 MHz on this particular card. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770 108 Watts
GeForce GTX 260 182 Watts
Difference: 74 Watts (69%)

Memory Bandwidth

In theory, the GeForce GTX 260 will be 46% faster than the Radeon HD 5770 in general, because of its greater bandwidth. (explain)

GeForce GTX 260 111888 MB/sec
Radeon HD 5770 76800 MB/sec
Difference: 35088 (46%)

Texel Rate

The GeForce GTX 260 is a bit (approximately 8%) faster with regards to anisotropic filtering than the Radeon HD 5770. (explain)

GeForce GTX 260 36864 Mtexels/sec
Radeon HD 5770 34000 Mtexels/sec
Difference: 2864 (8%)

Pixel Rate

The GeForce GTX 260 should be just a bit (about 19%) better at FSAA than the Radeon HD 5770, and also will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 260 16128 Mpixels/sec
Radeon HD 5770 13600 Mpixels/sec
Difference: 2528 (19%)

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 5770

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 5770
Manufacturer nVidia AMD
Year June 16, 2008 October 13, 2009
Code Name G200 Juniper XT
Memory 896 MB 1024 MB
Core Speed 576 MHz 850 MHz
Memory Speed 1998 MHz 4800 MHz
Power (Max TDP) 182 watts 108 watts
Bandwidth 111888 MB/sec 76800 MB/sec
Texel Rate 36864 Mtexels/sec 34000 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 13600 Mpixels/sec
Unified Shaders 192 800(160x5)
Texture Mapping Units 64 40
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 1400 million 1040 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 data (counted in megabytes per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 260

Amazon.com

Check prices at:

Radeon HD 5770

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

2 Responses to “GeForce GTX 260 vs Radeon HD 5770”
Anonymous says:

[...] Solo por curiosidad tb evalue tu targeta pero por hwcompare con la mia para ver el consumo: gtx 260 vs HD 5770 el tema del consumo indica ahi q deberia tener una fuente de minimo 500W reales, es mejor q antes [...]

Factor Sorpresa says:

Cual es mas veloz?

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