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GeForce GTX 950M vs Radeon HD 4670 1GB

Intro

The GeForce GTX 950M uses a 28 nm design. nVidia has set the core speed at 914 MHz. The DDR3 memory works at a speed of 1000 MHz on this particular model. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Compare all of that to the Radeon HD 4670 1GB, which comes with a core clock speed of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory frequency of 1100 MHz. It also uses a 128-bit memory bus, and uses a 55 nm design. It features 320(64x5) SPUs, 32 Texture Address Units, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M 55 Watts
Radeon HD 4670 1GB 70 Watts
Difference: 15 Watts (27%)

Memory Bandwidth

Theoretically, the Radeon HD 4670 1GB should perform a little bit faster than the GeForce GTX 950M overall. (explain)

Radeon HD 4670 1GB 35200 MB/sec
GeForce GTX 950M 32000 MB/sec
Difference: 3200 (10%)

Texel Rate

The GeForce GTX 950M will be much (approximately 52%) better at AF than the Radeon HD 4670 1GB. (explain)

GeForce GTX 950M 36560 Mtexels/sec
Radeon HD 4670 1GB 24000 Mtexels/sec
Difference: 12560 (52%)

Pixel Rate

If using a high screen resolution 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 4670 1GB 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 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 950M Radeon HD 4670 1GB
Manufacturer nVidia AMD
Year March 12 2015 Sep 10, 2008
Code Name GM107 RV730 XT
Memory 2048 MB 1024 MB
Core Speed 914 MHz 750 MHz
Memory Speed 2000 MHz 2200 MHz
Power (Max TDP) 55 watts 70 watts
Bandwidth 32000 MB/sec 35200 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: 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 worked out by multiplying the bus width by its memory clock speed. If the card has DDR type 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 950M

Amazon.com

Check prices at:

Radeon HD 4670 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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