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GeForce GTX 960M vs Radeon HD 4830 1GB

Intro

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

Compare that to the Radeon HD 4830 1GB, which has a core clock speed of 575 MHz and a GDDR4 memory frequency of 900 MHz. It also features a 256-bit memory bus, and uses a 55 nm design. It features 640(128x5) SPUs, 32 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M 65 Watts
Radeon HD 4830 1GB 95 Watts
Difference: 30 Watts (46%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 960M is 11% faster than the Radeon HD 4830 1GB overall, due to its greater bandwidth. (explain)

GeForce GTX 960M 64000 MB/sec
Radeon HD 4830 1GB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce GTX 960M is quite a bit (about 138%) more effective at AF than the Radeon HD 4830 1GB. (explain)

GeForce GTX 960M 43840 Mtexels/sec
Radeon HD 4830 1GB 18400 Mtexels/sec
Difference: 25440 (138%)

Pixel Rate

The GeForce GTX 960M should be much (more or less 91%) better at AA than the Radeon HD 4830 1GB, and will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 960M 17536 Mpixels/sec
Radeon HD 4830 1GB 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 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 960M Radeon HD 4830 1GB
Manufacturer nVidia AMD
Year March 12 2015 Oct 21, 2008
Code Name GM107 RV770 LE
Memory 2048 MB 1024 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 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 (counted in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units by the core 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 a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units 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 fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - 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 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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