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GeForce 9800 GTX+ vs Radeon HD 5770

Intro

The GeForce 9800 GTX+ makes use of a 55 nm design. nVidia has set the core speed at 738 MHz. The GDDR3 RAM works at a frequency of 1100 MHz on this specific model. It features 128 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the Radeon HD 5770, which features a GPU core clock speed of 850 MHz, and 1024 MB of GDDR5 RAM running at 1200 MHz through a 128-bit bus. It also is made up of 800(160x5) Stream Processors, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770 108 Watts
GeForce 9800 GTX+ 145 Watts
Difference: 37 Watts (34%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5770 should in theory be a little bit better than the GeForce 9800 GTX+ in general. (explain)

Radeon HD 5770 76800 MB/sec
GeForce 9800 GTX+ 70400 MB/sec
Difference: 6400 (9%)

Texel Rate

The GeForce 9800 GTX+ is quite a bit (approximately 39%) more effective at texture filtering than the Radeon HD 5770. (explain)

GeForce 9800 GTX+ 47232 Mtexels/sec
Radeon HD 5770 34000 Mtexels/sec
Difference: 13232 (39%)

Pixel Rate

The Radeon HD 5770 is a bit (more or less 15%) more effective at AA than the GeForce 9800 GTX+, and also will be able to handle higher screen resolutions better. (explain)

Radeon HD 5770 13600 Mpixels/sec
GeForce 9800 GTX+ 11808 Mpixels/sec
Difference: 1792 (15%)

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 9800 GTX+

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 9800 GTX+ Radeon HD 5770
Manufacturer nVidia AMD
Year July 2008 October 13, 2009
Code Name G92b Juniper XT
Memory 512 MB 1024 MB
Core Speed 738 MHz 850 MHz
Memory Speed 2200 MHz 4800 MHz
Power (Max TDP) 145 watts 108 watts
Bandwidth 70400 MB/sec 76800 MB/sec
Texel Rate 47232 Mtexels/sec 34000 Mtexels/sec
Pixel Rate 11808 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 55 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: Memory bandwidth is the largest amount of data (in units of MB 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 it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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 potential to reach the maximum fill rate.

Display Prices

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GeForce 9800 GTX+

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 9800 GTX+ vs Radeon HD 5770”
Upgrading Intel E6750 Stock Air Cooler (LGA 755) - Page 8 says:

[...] twice as good. It performs smilarly (5% better overall) than a 5770, which is about overall about 15% better than a 9800GTX. The 550 is a pretty low end card, better yes, twice as good - definitely no. [...]

Fred says:

Actually according to Textural rate the 9800GTX+ beats the 5770. If the 2 cards were tested at lower resolution like 1280x1024 the 9800 GTX+ would take it in fps in almost all games above. And if you have a 17inch monitor thats the highest res you can go anyway.

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