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GeForce GTX 950M vs Radeon HD 4670 512MB

Intro

The GeForce GTX 950M features a GPU clock speed of 914 MHz, and the 2048 MB of DDR3 RAM runs at 1000 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Compare those specifications to the Radeon HD 4670 512MB, which features a clock frequency of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory speed of 1000 MHz. It also features a 128-bit memory bus, and makes use of a 55 nm design. It features 320(64x5) SPUs, 32 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M 55 Watts
Radeon HD 4670 512MB 70 Watts
Difference: 15 Watts (27%)

Memory Bandwidth

Both cards have the exact same memory bandwidth, so in theory they should perform exactly the same. (explain)

Texel Rate

The GeForce GTX 950M is a lot (more or less 52%) better at AF than the Radeon HD 4670 512MB. (explain)

GeForce GTX 950M 36560 Mtexels/sec
Radeon HD 4670 512MB 24000 Mtexels/sec
Difference: 12560 (52%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 950M is a better choice, by a large margin. (explain)

GeForce GTX 950M 14624 Mpixels/sec
Radeon HD 4670 512MB 6000 Mpixels/sec
Difference: 8624 (144%)

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 4670 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 950M Radeon HD 4670 512MB
Manufacturer nVidia AMD
Year March 12 2015 Sep 10, 2008
Code Name GM107 RV730 XT
Memory 2048 MB 512 MB
Core Speed 914 MHz 750 MHz
Memory Speed 2000 MHz 2000 MHz
Power (Max TDP) 55 watts 70 watts
Bandwidth 32000 MB/sec 32000 MB/sec
Texel Rate 36560 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 14624 Mpixels/sec 6000 Mpixels/sec
Unified Shaders 640 320(64x5)
Texture Mapping Units 40 32
Render Output Units 16 8
Bus Type DDR3 GDDR4/GDDR3/DDR3/DDR2
Bus Width 128-bit 128-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million 514 million
Bus PCIe 3.0 x16 PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core 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 chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 max fill rate.

Display Prices

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GeForce GTX 950M

Amazon.com

Check prices at:

Radeon HD 4670 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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