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GeForce GTX 960M vs Radeon HD 4830 512MB

Intro

The GeForce GTX 960M features a core clock frequency of 1096 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Compare that to the Radeon HD 4830 512MB, which uses a 55 nm design. AMD has clocked the core speed at 575 MHz. The GDDR3 memory is set to run at a speed of 900 MHz on this particular card. It features 640(128x5) SPUs as well as 32 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M 65 Watts
Radeon HD 4830 512MB 95 Watts
Difference: 30 Watts (46%)

Memory Bandwidth

In theory, the GeForce GTX 960M will be 11% faster than the Radeon HD 4830 512MB overall, because of its greater data rate. (explain)

GeForce GTX 960M 64000 MB/sec
Radeon HD 4830 512MB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce GTX 960M should be much (about 138%) more effective at anisotropic filtering than the Radeon HD 4830 512MB. (explain)

GeForce GTX 960M 43840 Mtexels/sec
Radeon HD 4830 512MB 18400 Mtexels/sec
Difference: 25440 (138%)

Pixel Rate

The GeForce GTX 960M is quite a bit (approximately 91%) faster with regards to anti-aliasing than the Radeon HD 4830 512MB, and should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 960M 17536 Mpixels/sec
Radeon HD 4830 512MB 9200 Mpixels/sec
Difference: 8336 (91%)

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 960M

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.

Specifications

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Model GeForce GTX 960M Radeon HD 4830 512MB
Manufacturer nVidia AMD
Year March 12 2015 Oct 21, 2008
Code Name GM107 RV770 LE
Memory 2048 MB 512 MB
Core Speed 1096 MHz 575 MHz
Memory Speed 4000 MHz 1800 MHz
Power (Max TDP) 65 watts 95 watts
Bandwidth 64000 MB/sec 57600 MB/sec
Texel Rate 43840 Mtexels/sec 18400 Mtexels/sec
Pixel Rate 17536 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 640 640(128x5)
Texture Mapping Units 40 32
Render Output Units 16 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 largest amount of information (measured in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video 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 most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 960M

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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