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GeForce GTX 550 Ti vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce GTX 550 Ti features a clock frequency of 900 MHz and a GDDR5 memory speed of 1026 MHz. It also features a 192-bit bus, and uses a 40 nm design. It is made up of 192 SPUs, 32 Texture Address Units, and 24 Raster Operation Units.

Compare those specs to the Radeon HD 6450 (OEM) 1GB, which has core clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 160 SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce GTX 550 Ti 116 Watts
Difference: 85 Watts (274%)

Memory Bandwidth

Performance-wise, the GeForce GTX 550 Ti should theoretically be a lot superior to the Radeon HD 6450 (OEM) 1GB in general. (explain)

GeForce GTX 550 Ti 98496 MB/sec
Radeon HD 6450 (OEM) 1GB 28800 MB/sec
Difference: 69696 (242%)

Texel Rate

The GeForce GTX 550 Ti is much (about 380%) better at texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GTX 550 Ti 28800 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 22800 (380%)

Pixel Rate

The GeForce GTX 550 Ti is a lot (approximately 620%) faster with regards to AA than the Radeon HD 6450 (OEM) 1GB, and also able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 550 Ti 21600 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 18600 (620%)

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 550 Ti

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

Model GeForce GTX 550 Ti Radeon HD 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year March 2011 February 2011
Code Name GF116 Caicos
Fab Process 40 nm 40 nm
Bus PCIe 2.1 x16 PCIe 2.1 x16
Memory 1024 MB 1024 MB
Core Speed 900 MHz 750 MHz
Shader Speed 1800 MHz (N/A) MHz
Memory Speed 1026 MHz (4104 MHz effective) 900 MHz (3600 MHz effective)
Unified Shaders 192 160
Texture Mapping Units 32 8
Render Output Units 24 4
Bus Type GDDR5 GDDR5
Bus Width 192-bit 64-bit
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1
Power (Max TDP) 116 watts 31 watts
Shader Model 5.0 5.0
Bandwidth 98496 MB/sec 28800 MB/sec
Texel Rate 28800 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 3000 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 get to the maximum fill rate.

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