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GeForce GTX 260 Core 216 vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce GTX 260 Core 216 makes use of a 65 nm design. nVidia has clocked the core speed at 576 MHz. The GDDR3 memory works at a speed of 999 MHz on this specific model. It features 216 SPUs along with 72 TAUs and 28 ROPs.

Compare all that to the Radeon HD 6450 (OEM) 1GB, which uses a 40 nm design. AMD has set the core frequency at 750 MHz. The GDDR5 RAM works at a frequency of 900 MHz on this particular model. It features 160 SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce GTX 260 Core 216 202 Watts
Difference: 171 Watts (552%)

Memory Bandwidth

The GeForce GTX 260 Core 216 should in theory be quite a bit faster than the Radeon HD 6450 (OEM) 1GB overall. (explain)

GeForce GTX 260 Core 216 111888 MB/sec
Radeon HD 6450 (OEM) 1GB 28800 MB/sec
Difference: 83088 (289%)

Texel Rate

The GeForce GTX 260 Core 216 is quite a bit (about 591%) better at anisotropic filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GTX 260 Core 216 41472 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 35472 (591%)

Pixel Rate

The GeForce GTX 260 Core 216 is a lot (about 438%) faster with regards to FSAA than the Radeon HD 6450 (OEM) 1GB, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 260 Core 216 16128 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 13128 (438%)

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 260 Core 216

Amazon.com

Radeon HD 6450 (OEM) 1GB

Amazon.com

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 260 Core 216 Radeon HD 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year September 16, 2008 February 2011
Code Name G200 Caicos
Memory 896 MB 1024 MB
Core Speed 576 MHz 750 MHz
Memory Speed 1998 MHz 3600 MHz
Power (Max TDP) 202 watts 31 watts
Bandwidth 111888 MB/sec 28800 MB/sec
Texel Rate 41472 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 216 160
Texture Mapping Units 72 8
Render Output Units 28 4
Bus Type GDDR3 GDDR5
Bus Width 448-bit 64-bit
Fab Process 65 nm 40 nm
Transistors 1400 million 370 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 can be applied per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record 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 called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

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