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GeForce GTX 950M vs Radeon HD 4750

Intro

The GeForce GTX 950M comes with a core clock speed of 914 MHz and a DDR3 memory speed of 1000 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Compare those specs to the Radeon HD 4750, which features GPU core speed of 730 MHz, and 512 MB of GDDR5 RAM set to run at 800 MHz through a 128-bit bus. It also is made up of 640(128x5) Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M 55 Watts
Radeon HD 4750 75 Watts
Difference: 20 Watts (36%)

Memory Bandwidth

The Radeon HD 4750 should in theory be much faster than the GeForce GTX 950M overall. (explain)

Radeon HD 4750 51200 MB/sec
GeForce GTX 950M 32000 MB/sec
Difference: 19200 (60%)

Texel Rate

The GeForce GTX 950M should be quite a bit (approximately 57%) faster with regards to anisotropic filtering than the Radeon HD 4750. (explain)

GeForce GTX 950M 36560 Mtexels/sec
Radeon HD 4750 23360 Mtexels/sec
Difference: 13200 (57%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 950M is the winner, by a large margin. (explain)

GeForce GTX 950M 14624 Mpixels/sec
Radeon HD 4750 11680 Mpixels/sec
Difference: 2944 (25%)

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 950M

Amazon.com

Check prices at:

Radeon HD 4750

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 950M Radeon HD 4750
Manufacturer nVidia AMD
Year March 12 2015
Code Name GM107 RV740
Memory 2048 MB 512 MB
Core Speed 914 MHz 730 MHz
Memory Speed 2000 MHz 3200 MHz
Power (Max TDP) 55 watts 75 watts
Bandwidth 32000 MB/sec 51200 MB/sec
Texel Rate 36560 Mtexels/sec 23360 Mtexels/sec
Pixel Rate 14624 Mpixels/sec 11680 Mpixels/sec
Unified Shaders 640 640(128x5)
Texture Mapping Units 40 32
Render Output Units 16 16
Bus Type DDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 826 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 information (in units of MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GTX 950M

Amazon.com

Check prices at:

Radeon HD 4750

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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