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GeForce GTS 150 vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce GTS 150 comes with core speeds of 740 MHz on the GPU, and 500 MHz on the 1024 MB of GDDR3 memory. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Compare all of that to the Radeon HD 6450 (OEM) 1GB, which comes with a core clock speed of 750 MHz and a GDDR5 memory frequency of 900 MHz. It also features a 64-bit memory bus, and uses a 40 nm design. It is made up of 160 SPUs, 8 TAUs, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce GTS 150 141 Watts
Difference: 110 Watts (355%)

Memory Bandwidth

Performance-wise, the GeForce GTS 150 should theoretically be a bit better than the Radeon HD 6450 (OEM) 1GB in general. (explain)

GeForce GTS 150 32000 MB/sec
Radeon HD 6450 (OEM) 1GB 28800 MB/sec
Difference: 3200 (11%)

Texel Rate

The GeForce GTS 150 is a lot (approximately 689%) faster with regards to AF than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GTS 150 47360 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 41360 (689%)

Pixel Rate

The GeForce GTS 150 is quite a bit (approximately 295%) better at anti-aliasing than the Radeon HD 6450 (OEM) 1GB, and also should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTS 150 11840 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 8840 (295%)

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 GTS 150

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.

Specifications

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Model GeForce GTS 150 Radeon HD 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year March 10, 2009 February 2011
Code Name G92b Caicos
Memory 1024 MB 1024 MB
Core Speed 740 MHz 750 MHz
Memory Speed 1000 MHz 3600 MHz
Power (Max TDP) 141 watts 31 watts
Bandwidth 32000 MB/sec 28800 MB/sec
Texel Rate 47360 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 11840 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 128 160
Texture Mapping Units 64 8
Render Output Units 16 4
Bus Type GDDR3 GDDR5
Bus Width 256-bit 64-bit
Fab Process 55 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 maximum amount of information (in units of MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTS 150

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.

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