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GeForce 8800 GTS (G92) vs Radeon HD 5770


Intro

The GeForce 8800 GTS (G92) has core clock speeds of 650 MHz on the GPU, and 970 MHz on the 512 MB of GDDR3 RAM. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Compare that to the Radeon HD 5770, which has a core clock speed of 850 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It is made up of 800(160x5) SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770 108 Watts
GeForce 8800 GTS (G92) 135 Watts
Difference: 27 Watts (25%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5770 will be 24% quicker than the GeForce 8800 GTS (G92) overall, because of its higher data rate. (explain)

Radeon HD 5770 76800 MB/sec
GeForce 8800 GTS (G92) 62080 MB/sec
Difference: 14720 (24%)

Texel Rate

The GeForce 8800 GTS (G92) should be a lot (about 22%) more effective at texture filtering than the Radeon HD 5770. (explain)

GeForce 8800 GTS (G92) 41600 Mtexels/sec
Radeon HD 5770 34000 Mtexels/sec
Difference: 7600 (22%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 5770 is a better choice, and very much so. (explain)

Radeon HD 5770 13600 Mpixels/sec
GeForce 8800 GTS (G92) 10400 Mpixels/sec
Difference: 3200 (31%)

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

Display Prices

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GeForce 8800 GTS (G92)

Amazon.com

Radeon HD 5770

Amazon.com

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 8800 GTS (G92) Radeon HD 5770
Manufacturer nVidia AMD
Year Dec 2007 October 13, 2009
Code Name G92 Juniper XT
Memory 512 MB 1024 MB
Core Speed 650 MHz 850 MHz
Memory Speed 1940 MHz 4800 MHz
Power (Max TDP) 135 watts 108 watts
Bandwidth 62080 MB/sec 76800 MB/sec
Texel Rate 41600 Mtexels/sec 34000 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 13600 Mpixels/sec
Unified Shaders 128 800(160x5)
Texture Mapping Units 64 40
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 754 million 1040 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G92)

Amazon.com

Radeon HD 5770

Amazon.com

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 8800 GTS (G92) vs Radeon HD 5770”
Small GPU upgrade advice says:

[...] would be an upgrade, yes. Here's a comparison: http://www.hwcompare.com/1203/geforc...adeon-hd-5770/ __________________ MoBo: AsRock R2.0 PT880 Ultra CPU: Intel Pentium Wolfdale Dual-Core E6800 [...]

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