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GeForce 920M vs Radeon HD 4650 512MB

Intro

The GeForce 920M features a GPU core clock speed of 954 MHz, and the 2048 MB of DDR3 RAM is set to run at 900 MHz through a 64-bit bus. It also is made up of 384 Stream Processors, 32 Texture Address Units, and 8 Raster Operation Units.

Compare those specs to the Radeon HD 4650 512MB, which has GPU clock speed of 600 MHz, and 512 MB of DDR2 RAM running at 500 MHz through a 128-bit bus. It also features 320(64x5) SPUs, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 4650 512MB should be a little bit faster than the GeForce 920M in general. (explain)

Radeon HD 4650 512MB 16000 MB/sec
GeForce 920M 14400 MB/sec
Difference: 1600 (11%)

Texel Rate

The GeForce 920M is much (about 59%) faster with regards to texture filtering than the Radeon HD 4650 512MB. (explain)

GeForce 920M 30528 Mtexels/sec
Radeon HD 4650 512MB 19200 Mtexels/sec
Difference: 11328 (59%)

Pixel Rate

The GeForce 920M is quite a bit (about 59%) more effective at full screen anti-aliasing than the Radeon HD 4650 512MB, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce 920M 7632 Mpixels/sec
Radeon HD 4650 512MB 4800 Mpixels/sec
Difference: 2832 (59%)

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

Check prices at:

Radeon HD 4650 512MB

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 920M Radeon HD 4650 512MB
Manufacturer nVidia AMD
Year March 12 2015 Sep 10, 2008
Code Name GK208 RV730 PRO
Memory 2048 MB 512 MB
Core Speed 954 MHz 600 MHz
Memory Speed 1800 MHz 1000 MHz
Power (Max TDP) (Unknown) watts 55 watts
Bandwidth 14400 MB/sec 16000 MB/sec
Texel Rate 30528 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 7632 Mpixels/sec 4800 Mpixels/sec
Unified Shaders 384 320(64x5)
Texture Mapping Units 32 32
Render Output Units 8 8
Bus Type DDR3 DDR2
Bus Width 64-bit 128-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million 514 million
Bus PCIe 3.0 x16 PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics 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 that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce 920M

Amazon.com

Check prices at:

Radeon HD 4650 512MB

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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