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GeForce 8800 GT 1GB vs Radeon HD 4730

Intro

The GeForce 8800 GT 1GB comes with a GPU clock speed of 600 MHz, and the 1024 MB of GDDR3 RAM is set to run at 900 MHz through a 256-bit bus. It also is comprised of 112 SPUs, 56 TAUs, and 16 ROPs.

Compare all of that to the Radeon HD 4730, which features a clock speed of 700 MHz and a GDDR5 memory speed of 900 MHz. It also features a 128-bit bus, and uses a 55 nm design. It is made up of 640(128x5) SPUs, 32 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 1GB 105 Watts
Radeon HD 4730 140 Watts
Difference: 35 Watts (33%)

Memory Bandwidth

Both cards have the exact same bandwidth, so in theory they should have identical performance. (explain)

Texel Rate

The GeForce 8800 GT 1GB should be quite a bit (approximately 50%) faster with regards to texture filtering than the Radeon HD 4730. (explain)

GeForce 8800 GT 1GB 33600 Mtexels/sec
Radeon HD 4730 22400 Mtexels/sec
Difference: 11200 (50%)

Pixel Rate

The GeForce 8800 GT 1GB should be much (more or less 71%) better at FSAA than the Radeon HD 4730, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce 8800 GT 1GB 9600 Mpixels/sec
Radeon HD 4730 5600 Mpixels/sec
Difference: 4000 (71%)

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 8800 GT 1GB

Amazon.com

Check prices at:

Radeon HD 4730

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 8800 GT 1GB Radeon HD 4730
Manufacturer nVidia AMD
Year Dec 2007 Jun 8, 2009
Code Name G92 RV770/CE
Memory 1024 MB 512 MB
Core Speed 600 MHz 700 MHz
Memory Speed 1800 MHz 3600 MHz
Power (Max TDP) 105 watts 140 watts
Bandwidth 57600 MB/sec 57600 MB/sec
Texel Rate 33600 Mtexels/sec 22400 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 5600 Mpixels/sec
Unified Shaders 112 640(128x5)
Texture Mapping Units 56 32
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65 nm 55 nm
Transistors 754 million 956 million
Bus PCIe x16 2.0 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units by the core clock 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 applied in one second.

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

Display Prices

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GeForce 8800 GT 1GB

Amazon.com

Check prices at:

Radeon HD 4730

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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