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GeForce 8800 GT 256MB vs GeForce GTX 650

Intro

The GeForce 8800 GT 256MB features a GPU clock speed of 600 MHz, and the 256 MB of GDDR3 memory is set to run at 700 MHz through a 256-bit bus. It also is made up of 112 Stream Processors, 56 TAUs, and 16 ROPs.

Compare those specs to the GeForce GTX 650, which uses a 28 nm design. nVidia has set the core frequency at 1058 MHz. The GDDR5 RAM works at a frequency of 1250 MHz on this model. It features 384 SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce 8800 GT 256MB 105 Watts
Difference: 41 Watts (64%)

Memory Bandwidth

Theoretically, the GeForce GTX 650 should perform a lot faster than the GeForce 8800 GT 256MB in general. (explain)

GeForce GTX 650 80000 MB/sec
GeForce 8800 GT 256MB 44800 MB/sec
Difference: 35200 (79%)

Texel Rate

The GeForce GTX 650 will be just a bit (about 1%) faster with regards to AF than the GeForce 8800 GT 256MB. (explain)

GeForce GTX 650 33856 Mtexels/sec
GeForce 8800 GT 256MB 33600 Mtexels/sec
Difference: 256 (1%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 650 is a better choice, by a large margin. (explain)

GeForce GTX 650 16928 Mpixels/sec
GeForce 8800 GT 256MB 9600 Mpixels/sec
Difference: 7328 (76%)

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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce 8800 GT 256MB

Amazon.com

Other US-based stores

GeForce GTX 650

Amazon.com

Other US-based stores

Specifications

Model GeForce 8800 GT 256MB GeForce GTX 650
Manufacturer nVidia nVidia
Year Dec 2007 September 2012
Code Name G92 GK107
Fab Process 65 nm 28 nm
Bus PCIe x16 2.0 PCIe 3.0 x16
Memory 256 MB 2048 MB
Core Speed 600 MHz 1058 MHz
Shader Speed 1500 MHz 1058 MHz
Memory Speed 700 MHz (1400 MHz effective) 1250 MHz (5000 MHz effective)
Unified Shaders 112 384
Texture Mapping Units 56 32
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
DirectX Version DirectX 10 DirectX 11.1
OpenGL Version OpenGL 3.0 OpenGL 4.3
Power (Max TDP) 105 watts 64 watts
Shader Model 4.0 5.0
Bandwidth 44800 MB/sec 80000 MB/sec
Texel Rate 33600 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 16928 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling 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 can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

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