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GeForce 930M vs Radeon HD 7950 3GB

Intro

The GeForce 930M features a GPU core clock speed of 928 MHz, and the 2048 MB of DDR3 memory is set to run at 900 MHz through a 64-bit bus. It also is comprised of 384 SPUs, 24 Texture Address Units, and 8 ROPs.

Compare all of that to the Radeon HD 7950 3GB, which makes use of a 28 nm design. AMD has set the core speed at 800 MHz. The GDDR5 memory runs at a speed of 1250 MHz on this particular card. It features 1792 SPUs as well as 112 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 7950 3GB should in theory perform quite a bit faster than the GeForce 930M overall. (explain)

Radeon HD 7950 3GB 240000 MB/sec
GeForce 930M 14400 MB/sec
Difference: 225600 (1567%)

Texel Rate

The Radeon HD 7950 3GB will be a lot (more or less 302%) better at AF than the GeForce 930M. (explain)

Radeon HD 7950 3GB 89600 Mtexels/sec
GeForce 930M 22272 Mtexels/sec
Difference: 67328 (302%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 7950 3GB is superior to the GeForce 930M, by far. (explain)

Radeon HD 7950 3GB 25600 Mpixels/sec
GeForce 930M 7424 Mpixels/sec
Difference: 18176 (245%)

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 930M

Amazon.com

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Radeon HD 7950 3GB

Amazon.com

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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 930M Radeon HD 7950 3GB
Manufacturer nVidia AMD
Year March 12 2015 January 2012
Code Name GM108 Tahiti Pro
Memory 2048 MB 3072 MB
Core Speed 928 MHz 800 MHz
Memory Speed 1800 MHz 5000 MHz
Power (Max TDP) (Unknown) watts 200 watts
Bandwidth 14400 MB/sec 240000 MB/sec
Texel Rate 22272 Mtexels/sec 89600 Mtexels/sec
Pixel Rate 7424 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 384 1792
Texture Mapping Units 24 112
Render Output Units 8 32
Bus Type DDR3 GDDR5
Bus Width 64-bit 384-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.1
OpenGL Version OpenGL 4.5 OpenGL 4.2

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video 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 maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 930M

Amazon.com

Check prices at:

Radeon HD 7950 3GB

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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