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GeForce GTX 950M vs Radeon HD 7770

Intro

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

Compare all of that to the Radeon HD 7770, which comes with a clock frequency of 1000 MHz and a GDDR5 memory frequency of 1125 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 950M 3330 points
Radeon HD 7770 3180 points
Difference: 150 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M 55 Watts
Radeon HD 7770 80 Watts
Difference: 25 Watts (45%)

Memory Bandwidth

The Radeon HD 7770 should theoretically be a lot faster than the GeForce GTX 950M in general. (explain)

Radeon HD 7770 72000 MB/sec
GeForce GTX 950M 32000 MB/sec
Difference: 40000 (125%)

Texel Rate

The Radeon HD 7770 will be a bit (approximately 9%) faster with regards to AF than the GeForce GTX 950M. (explain)

Radeon HD 7770 40000 Mtexels/sec
GeForce GTX 950M 36560 Mtexels/sec
Difference: 3440 (9%)

Pixel Rate

The Radeon HD 7770 is a little bit (approximately 9%) more effective at FSAA than the GeForce GTX 950M, and should be capable of handling higher resolutions better. (explain)

Radeon HD 7770 16000 Mpixels/sec
GeForce GTX 950M 14624 Mpixels/sec
Difference: 1376 (9%)

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 7770

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 7770
Manufacturer nVidia AMD
Year March 12 2015 February 2012
Code Name GM107 Cape Verde XT
Memory 2048 MB 1024 MB
Core Speed 914 MHz 1000 MHz
Memory Speed 2000 MHz 4500 MHz
Power (Max TDP) 55 watts 80 watts
Bandwidth 32000 MB/sec 72000 MB/sec
Texel Rate 36560 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 14624 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 640 640
Texture Mapping Units 40 40
Render Output Units 16 16
Bus Type DDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million 1500 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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core 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 rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 950M

Amazon.com

Check prices at:

Radeon HD 7770

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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