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GeForce GTX 460 (OEM) vs Radeon HD 6450 (OEM)

Intro

The GeForce GTX 460 (OEM) has a GPU clock speed of 650 MHz, and the 1024 MB of GDDR5 memory is set to run at 850 MHz through a 256-bit bus. It also features 336 SPUs, 56 TAUs, and 32 ROPs.

Compare that to the Radeon HD 6450 (OEM), which features GPU core speed of 625 MHz, and 512 MB of GDDR3 memory set to run at 800 MHz through a 64-bit bus. It also is comprised of 160 Stream Processors, 8 Texture Address Units, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 31 Watts
GeForce GTX 460 (OEM) 150 Watts
Difference: 119 Watts (384%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 (OEM) should be a lot faster than the Radeon HD 6450 (OEM) overall. (explain)

GeForce GTX 460 (OEM) 108800 MB/sec
Radeon HD 6450 (OEM) 12800 MB/sec
Difference: 96000 (750%)

Texel Rate

The GeForce GTX 460 (OEM) is a lot (more or less 628%) faster with regards to texture filtering than the Radeon HD 6450 (OEM). (explain)

GeForce GTX 460 (OEM) 36400 Mtexels/sec
Radeon HD 6450 (OEM) 5000 Mtexels/sec
Difference: 31400 (628%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 460 (OEM) is a better choice, and very much so. (explain)

GeForce GTX 460 (OEM) 20800 Mpixels/sec
Radeon HD 6450 (OEM) 2500 Mpixels/sec
Difference: 18300 (732%)

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 GTX 460 (OEM)

Amazon.com

Check prices at:

Radeon HD 6450 (OEM)

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 GTX 460 (OEM) Radeon HD 6450 (OEM)
Manufacturer nVidia AMD
Year October 2010 February 2011
Code Name GF104 Caicos
Memory 1024 MB 512 MB
Core Speed 650 MHz 625 MHz
Memory Speed 3400 MHz 1600 MHz
Power (Max TDP) 150 watts 31 watts
Bandwidth 108800 MB/sec 12800 MB/sec
Texel Rate 36400 Mtexels/sec 5000 Mtexels/sec
Pixel Rate 20800 Mpixels/sec 2500 Mpixels/sec
Unified Shaders 336 160
Texture Mapping Units 56 8
Render Output Units 32 4
Bus Type GDDR5 GDDR3
Bus Width 256-bit 64-bit
Fab Process 40 nm 40 nm
Transistors 1950 million 370 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Display Prices

Hide Prices

GeForce GTX 460 (OEM)

Amazon.com

Check prices at:

Radeon HD 6450 (OEM)

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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