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GeForce GTX 965M vs Radeon HD 4830 512MB

Intro

The GeForce GTX 965M has a GPU core clock speed of 944 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1000 MHz through a 128-bit bus. It also is comprised of 1024 SPUs, 64 Texture Address Units, and 32 ROPs.

Compare those specs to the Radeon HD 4830 512MB, which has a core clock frequency of 575 MHz and a GDDR3 memory speed of 900 MHz. It also uses a 256-bit bus, and makes use of a 55 nm design. It features 640(128x5) SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M 60 Watts
Radeon HD 4830 512MB 95 Watts
Difference: 35 Watts (58%)

Memory Bandwidth

In theory, the GeForce GTX 965M should be just a bit faster than the Radeon HD 4830 512MB overall. (explain)

GeForce GTX 965M 64000 MB/sec
Radeon HD 4830 512MB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce GTX 965M is quite a bit (about 228%) more effective at anisotropic filtering than the Radeon HD 4830 512MB. (explain)

GeForce GTX 965M 60416 Mtexels/sec
Radeon HD 4830 512MB 18400 Mtexels/sec
Difference: 42016 (228%)

Pixel Rate

The GeForce GTX 965M will be a lot (about 228%) better at AA than the Radeon HD 4830 512MB, and will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 965M 30208 Mpixels/sec
Radeon HD 4830 512MB 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

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Radeon HD 4830 512MB

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 GTX 965M Radeon HD 4830 512MB
Manufacturer nVidia AMD
Year January 5 2015 Oct 21, 2008
Code Name GM204 RV770 LE
Memory 2048 MB 512 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 GDDR3
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 maximum amount of data (measured in megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 965M

Amazon.com

Check prices at:

Radeon HD 4830 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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