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GeForce 8800 GT 1GB vs Radeon HD 4750

Intro

The GeForce 8800 GT 1GB features core speeds of 600 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 memory. It features 112 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Compare all of that to the Radeon HD 4750, which makes use of a 40 nm design. AMD has set the core speed at 730 MHz. The GDDR5 RAM is set to run at a frequency of 800 MHz on this specific card. It features 640(128x5) SPUs as well as 32 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4750 75 Watts
GeForce 8800 GT 1GB 105 Watts
Difference: 30 Watts (40%)

Memory Bandwidth

The GeForce 8800 GT 1GB should theoretically be a little bit faster than the Radeon HD 4750 overall. (explain)

GeForce 8800 GT 1GB 57600 MB/sec
Radeon HD 4750 51200 MB/sec
Difference: 6400 (13%)

Texel Rate

The GeForce 8800 GT 1GB is much (approximately 44%) faster with regards to anisotropic filtering than the Radeon HD 4750. (explain)

GeForce 8800 GT 1GB 33600 Mtexels/sec
Radeon HD 4750 23360 Mtexels/sec
Difference: 10240 (44%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 4750 is a better choice, by a large margin. (explain)

Radeon HD 4750 11680 Mpixels/sec
GeForce 8800 GT 1GB 9600 Mpixels/sec
Difference: 2080 (22%)

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 4750

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 4750
Manufacturer nVidia AMD
Year Dec 2007
Code Name G92 RV740
Memory 1024 MB 512 MB
Core Speed 600 MHz 730 MHz
Memory Speed 1800 MHz 3200 MHz
Power (Max TDP) 105 watts 75 watts
Bandwidth 57600 MB/sec 51200 MB/sec
Texel Rate 33600 Mtexels/sec 23360 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 11680 Mpixels/sec
Unified Shaders 112 640(128x5)
Texture Mapping Units 56 32
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 754 million 826 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: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 figure is calculated by multiplying the total amount of texture units 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in one 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 sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GT 1GB

Amazon.com

Check prices at:

Radeon HD 4750

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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