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GeForce GTX 950M vs Radeon HD 4670 512MB

Intro

The GeForce GTX 950M has a core clock speed of 914 MHz and a DDR3 memory frequency of 1000 MHz. It also makes use of a 128-bit memory bus, and uses a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Compare those specs to the Radeon HD 4670 512MB, which comes with a clock speed 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 is made up of 320(64x5) SPUs, 32 TAUs, and 8 ROPs.

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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 bandwidth, so theoretically they should perform exactly the same. (explain)

Texel Rate

The GeForce GTX 950M will be quite a bit (approximately 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

The GeForce GTX 950M will be much (approximately 144%) more effective at full screen anti-aliasing than the Radeon HD 4670 512MB, and also will be capable of handling higher resolutions without losing too much performance. (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: Bandwidth is the max amount of information (measured in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output 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 reach the maximum fill rate.

Display Prices

Hide Prices

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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