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GeForce GTX 965M vs Radeon HD 4830 1GB

Intro

The GeForce GTX 965M comes with a GPU core speed of 944 MHz, and the 2048 MB of GDDR5 memory runs at 1000 MHz through a 128-bit bus. It also features 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

Compare that to the Radeon HD 4830 1GB, which makes use of a 55 nm design. AMD has set the core speed at 575 MHz. The GDDR4 memory works at a frequency of 900 MHz on this particular card. It features 640(128x5) SPUs along with 32 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M 60 Watts
Radeon HD 4830 1GB 95 Watts
Difference: 35 Watts (58%)

Memory Bandwidth

The GeForce GTX 965M should theoretically perform a small bit faster than the Radeon HD 4830 1GB overall. (explain)

GeForce GTX 965M 64000 MB/sec
Radeon HD 4830 1GB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce GTX 965M should be much (approximately 228%) faster with regards to anisotropic filtering than the Radeon HD 4830 1GB. (explain)

GeForce GTX 965M 60416 Mtexels/sec
Radeon HD 4830 1GB 18400 Mtexels/sec
Difference: 42016 (228%)

Pixel Rate

The GeForce GTX 965M will be quite a bit (more or less 228%) more effective at AA than the Radeon HD 4830 1GB, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 965M 30208 Mpixels/sec
Radeon HD 4830 1GB 9200 Mpixels/sec
Difference: 21008 (228%)

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 965M

Amazon.com

Check prices at:

Radeon HD 4830 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 965M Radeon HD 4830 1GB
Manufacturer nVidia AMD
Year January 5 2015 Oct 21, 2008
Code Name GM204 RV770 LE
Memory 2048 MB 1024 MB
Core Speed 944 MHz 575 MHz
Memory Speed 4000 MHz 1800 MHz
Power (Max TDP) 60 watts 95 watts
Bandwidth 64000 MB/sec 57600 MB/sec
Texel Rate 60416 Mtexels/sec 18400 Mtexels/sec
Pixel Rate 30208 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 1024 640(128x5)
Texture Mapping Units 64 32
Render Output Units 32 16
Bus Type GDDR5 GDDR4
Bus Width 128-bit 256-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million 956 million
Bus PCIe 3.0 x16 PCIe 2.0 x16
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 transferred across the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 965M

Amazon.com

Check prices at:

Radeon HD 4830 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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