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GeForce 920M vs Radeon HD 4650 512MB

Intro

The GeForce 920M comes with core speeds of 954 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs along with 32 TAUs and 8 Rasterization Operator Units.

Compare all of that to the Radeon HD 4650 512MB, which uses a 55 nm design. AMD has clocked the core frequency at 600 MHz. The DDR2 RAM is set to run at a frequency of 500 MHz on this specific model. It features 320(64x5) SPUs along with 32 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 4650 512MB should perform a small 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 will be a lot (approximately 59%) more effective at 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

If running with a high resolution is important to you, then the GeForce 920M is the winner, by a large margin. (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 largest amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. 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 also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum 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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