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GeForce 9800 GTX vs Radeon HD 5770

Intro

The GeForce 9800 GTX features clock speeds of 675 MHz on the GPU, and 1100 MHz on the 512 MB of GDDR3 memory. It features 128 SPUs along with 64 Texture Address Units and 16 Rasterization Operator Units.

Compare all that to the Radeon HD 5770, which makes use of a 40 nm design. AMD has clocked the core speed at 850 MHz. The GDDR5 memory runs at a speed of 1200 MHz on this model. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770 108 Watts
GeForce 9800 GTX 140 Watts
Difference: 32 Watts (30%)

Memory Bandwidth

Performance-wise, 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 should be quite a bit (approximately 27%) better at anisotropic filtering than the Radeon HD 5770. (explain)

GeForce 9800 GTX 43200 Mtexels/sec
Radeon HD 5770 34000 Mtexels/sec
Difference: 9200 (27%)

Pixel Rate

The Radeon HD 5770 is quite a bit (about 26%) more effective at AA than the GeForce 9800 GTX, and also able to handle higher resolutions better. (explain)

Radeon HD 5770 13600 Mpixels/sec
GeForce 9800 GTX 10800 Mpixels/sec
Difference: 2800 (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 9800 GTX

Amazon.com

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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.

Specifications

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Model GeForce 9800 GTX Radeon HD 5770
Manufacturer nVidia AMD
Year April 2008 October 13, 2009
Code Name G92 Juniper XT
Memory 512 MB 1024 MB
Core Speed 675 MHz 850 MHz
Memory Speed 2200 MHz 4800 MHz
Power (Max TDP) 140 watts 108 watts
Bandwidth 70400 MB/sec 76800 MB/sec
Texel Rate 43200 Mtexels/sec 34000 Mtexels/sec
Pixel Rate 10800 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: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher 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 maximum amount of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to 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.

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