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GeForce 920M vs Radeon HD 5450

Intro

The GeForce 920M has a core clock speed of 954 MHz and a DDR3 memory frequency of 900 MHz. It also features a 64-bit memory bus, and uses a 28 nm design. It is made up of 384 SPUs, 32 TAUs, and 8 Raster Operation Units.

Compare all that to the Radeon HD 5450, which comes with GPU clock speed of 650 MHz, and 512 MB of DDR3 RAM running at 800 MHz through a 64-bit bus. It also is made up of 80(16x5) Stream Processors, 8 TAUs, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 920M should be just a bit faster than the Radeon HD 5450 in general. (explain)

GeForce 920M 14400 MB/sec
Radeon HD 5450 12800 MB/sec
Difference: 1600 (13%)

Texel Rate

The GeForce 920M is quite a bit (more or less 487%) better at anisotropic filtering than the Radeon HD 5450. (explain)

GeForce 920M 30528 Mtexels/sec
Radeon HD 5450 5200 Mtexels/sec
Difference: 25328 (487%)

Pixel Rate

The GeForce 920M should be a lot (about 194%) better at anti-aliasing than the Radeon HD 5450, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce 920M 7632 Mpixels/sec
Radeon HD 5450 2600 Mpixels/sec
Difference: 5032 (194%)

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 920M

Amazon.com

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Radeon HD 5450

Amazon.com

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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 920M Radeon HD 5450
Manufacturer nVidia AMD
Year March 12 2015 February 4, 2010
Code Name GK208 Cedar PRO
Memory 2048 MB 512 MB
Core Speed 954 MHz 650 MHz
Memory Speed 1800 MHz 1600 MHz
Power (Max TDP) (Unknown) watts 19 watts
Bandwidth 14400 MB/sec 12800 MB/sec
Texel Rate 30528 Mtexels/sec 5200 Mtexels/sec
Pixel Rate 7632 Mpixels/sec 2600 Mpixels/sec
Unified Shaders 384 80(16x5)
Texture Mapping Units 32 8
Render Output Units 8 4
Bus Type DDR3 DDR3
Bus Width 64-bit 64-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 292 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 12 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better 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 maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core 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 ability to get to the max fill rate.

Display Prices

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GeForce 920M

Amazon.com

Check prices at:

Radeon HD 5450

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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