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GeForce 930M vs Radeon HD 4650 512MB

Intro

The GeForce 930M comes with a GPU clock speed of 928 MHz, and the 2048 MB of DDR3 RAM runs at 900 MHz through a 64-bit bus. It also is made up of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Compare that to the Radeon HD 4650 512MB, which features 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) Stream Processors, 32 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 4650 512MB should perform a little bit faster than the GeForce 930M overall. (explain)

Radeon HD 4650 512MB 16000 MB/sec
GeForce 930M 14400 MB/sec
Difference: 1600 (11%)

Texel Rate

The GeForce 930M should be a little bit (approximately 16%) faster with regards to AF than the Radeon HD 4650 512MB. (explain)

GeForce 930M 22272 Mtexels/sec
Radeon HD 4650 512MB 19200 Mtexels/sec
Difference: 3072 (16%)

Pixel Rate

The GeForce 930M is a lot (about 55%) faster with regards to FSAA than the Radeon HD 4650 512MB, and also capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce 930M 7424 Mpixels/sec
Radeon HD 4650 512MB 4800 Mpixels/sec
Difference: 2624 (55%)

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 930M

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 930M Radeon HD 4650 512MB
Manufacturer nVidia AMD
Year March 12 2015 Sep 10, 2008
Code Name GM108 RV730 PRO
Memory 2048 MB 512 MB
Core Speed 928 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 22272 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 7424 Mpixels/sec 4800 Mpixels/sec
Unified Shaders 384 320(64x5)
Texture Mapping Units 24 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 information (measured in MB per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably 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 930M

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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