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GeForce GTX 950M vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce GTX 950M comes with a GPU core speed of 914 MHz, and the 2048 MB of DDR3 RAM is set to run at 1000 MHz through a 128-bit bus. It also is comprised of 640 SPUs, 40 TAUs, and 16 ROPs.

Compare all of that to the Radeon HD 6450 (OEM) 1GB, which comes with GPU clock speed of 750 MHz, and 1024 MB of GDDR5 memory running at 900 MHz through a 64-bit bus. It also features 160 SPUs, 8 TAUs, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce GTX 950M 55 Watts
Difference: 24 Watts (77%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 950M should be 11% quicker than the Radeon HD 6450 (OEM) 1GB in general, due to its greater bandwidth. (explain)

GeForce GTX 950M 32000 MB/sec
Radeon HD 6450 (OEM) 1GB 28800 MB/sec
Difference: 3200 (11%)

Texel Rate

The GeForce GTX 950M is much (approximately 509%) better at AF than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GTX 950M 36560 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 30560 (509%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 950M is a better choice, and very much so. (explain)

GeForce GTX 950M 14624 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 11624 (387%)

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 950M

Amazon.com

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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 GTX 950M Radeon HD 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year March 12 2015 February 2011
Code Name GM107 Caicos
Memory 2048 MB 1024 MB
Core Speed 914 MHz 750 MHz
Memory Speed 2000 MHz 3600 MHz
Power (Max TDP) 55 watts 31 watts
Bandwidth 32000 MB/sec 28800 MB/sec
Texel Rate 36560 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 14624 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 640 160
Texture Mapping Units 40 8
Render Output Units 16 4
Bus Type DDR3 GDDR5
Bus Width 128-bit 64-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 370 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 12 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of 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 rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 950M

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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