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GeForce 8800 GT 512MB vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce 8800 GT 512MB has a GPU clock speed of 600 MHz, and the 512 MB of GDDR3 memory is set to run at 900 MHz through a 256-bit bus. It also is comprised of 112 Stream Processors, 56 TAUs, and 16 ROPs.

Compare all that to the Radeon HD 6450 (OEM) 1GB, which features a GPU core clock speed of 750 MHz, and 1024 MB of GDDR5 memory running at 900 MHz through a 64-bit bus. It also is comprised of 160 Stream Processors, 8 Texture Address Units, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce 8800 GT 512MB 105 Watts
Difference: 74 Watts (239%)

Memory Bandwidth

As far as performance goes, the GeForce 8800 GT 512MB should theoretically be much superior to the Radeon HD 6450 (OEM) 1GB overall. (explain)

GeForce 8800 GT 512MB 57600 MB/sec
Radeon HD 6450 (OEM) 1GB 28800 MB/sec
Difference: 28800 (100%)

Texel Rate

The GeForce 8800 GT 512MB is quite a bit (approximately 460%) better at AF than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce 8800 GT 512MB 33600 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 27600 (460%)

Pixel Rate

The GeForce 8800 GT 512MB will be much (approximately 220%) more effective at AA than the Radeon HD 6450 (OEM) 1GB, and will be capable of handling higher resolutions better. (explain)

GeForce 8800 GT 512MB 9600 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 6600 (220%)

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 512MB

Amazon.com

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Radeon HD 6450 (OEM) 1GB

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 512MB Radeon HD 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year Oct 2007 February 2011
Code Name G92 Caicos
Memory 512 MB 1024 MB
Core Speed 600 MHz 750 MHz
Memory Speed 1800 MHz 3600 MHz
Power (Max TDP) 105 watts 31 watts
Bandwidth 57600 MB/sec 28800 MB/sec
Texel Rate 33600 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 112 160
Texture Mapping Units 56 8
Render Output Units 16 4
Bus Type GDDR3 GDDR5
Bus Width 256-bit 64-bit
Fab Process 65 nm 40 nm
Transistors 754 million 370 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better 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 number of pixels that the graphics chip could 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 ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GT 512MB

Amazon.com

Check prices at:

Radeon HD 6450 (OEM) 1GB

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

One Response to “GeForce 8800 GT 512MB vs Radeon HD 6450 (OEM) 1GB”
Vervanger oude 8800GT 512 - 9lives - Games Forum says:

[...] GeForce 8800 GT 512MB vs Radeon HD 6450 (OEM) 1GB – Performance Comparison Benchmarks @ Hardwa... Een vergelijking met de 6450. Dit is toch wel een aardige prestatievermindering voor je. GeForce 8800 GT 512MB vs Radeon HD 5770 – Performance Comparison Benchmarks @ Hardware Compare Een vergelijking met de 5770, dit zou een aardige 'upgrade' voor je zijn, je kan ze hier regelmatig 2ehands vinden voor max 50 euro. En het is maar 3 Watt meer dan de 8800GT dus je voeding trekt deze kaart zeker. [...]

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