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

Intro

The GeForce GTX 260 Core 216 comes with a clock frequency of 576 MHz and a GDDR3 memory speed of 999 MHz. It also features a 448-bit memory bus, and uses a 65 nm design. It is made up of 216 SPUs, 72 Texture Address Units, and 28 Raster Operation Units.

Compare those specifications to the Radeon HD 6450 (OEM) 1GB, which comes with a core clock frequency of 750 MHz and a GDDR5 memory frequency of 900 MHz. It also uses a 64-bit memory bus, and makes use of a 40 nm design. It is comprised of 160 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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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

In theory, the GeForce GTX 260 Core 216 should be a lot 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 much (about 591%) more effective 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 much (about 438%) better at 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

GeForce GTX 260 Core 216

Radeon HD 6450 (OEM) 1GB

Specifications

Display 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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core clock 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

GeForce GTX 260 Core 216

Radeon HD 6450 (OEM) 1GB

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