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Geforce GTX 770 vs Radeon R9 M295X

Intro

The Geforce GTX 770 has core speeds of 1046 MHz on the GPU, and 1753 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Radeon R9 M295X, which makes use of a 28 nm design. AMD has clocked the core frequency at 750 MHz. The GDDR5 memory is set to run at a frequency of 1375 MHz on this particular model. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X 125 Watts
Geforce GTX 770 230 Watts
Difference: 105 Watts (84%)

Memory Bandwidth

Theoretically, the Geforce GTX 770 should perform much faster than the Radeon R9 M295X overall. (explain)

Geforce GTX 770 224384 MB/sec
Radeon R9 M295X 176000 MB/sec
Difference: 48384 (27%)

Texel Rate

The Geforce GTX 770 is quite a bit (more or less 39%) better at texture filtering than the Radeon R9 M295X. (explain)

Geforce GTX 770 133888 Mtexels/sec
Radeon R9 M295X 96000 Mtexels/sec
Difference: 37888 (39%)

Pixel Rate

The Geforce GTX 770 will be a lot (approximately 39%) faster with regards to AA than the Radeon R9 M295X, and will be able to handle higher resolutions more effectively. (explain)

Geforce GTX 770 33472 Mpixels/sec
Radeon R9 M295X 24000 Mpixels/sec
Difference: 9472 (39%)

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

Display Prices

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Geforce GTX 770

Amazon.com

Check prices at:

Radeon R9 M295X

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

Display Specifications

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Model Geforce GTX 770 Radeon R9 M295X
Manufacturer nVidia AMD
Year May 2013 2014
Code Name GK104 Unknown
Memory 2048 MB 4096 MB
Core Speed 1046 MHz 750 MHz
Memory Speed 7012 MHz 5500 MHz
Power (Max TDP) 230 watts 125 watts
Bandwidth 224384 MB/sec 176000 MB/sec
Texel Rate 133888 Mtexels/sec 96000 Mtexels/sec
Pixel Rate 33472 Mpixels/sec 24000 Mpixels/sec
Unified Shaders 1536 2048
Texture Mapping Units 128 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 3540 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the 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 texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units of the card by the core clock 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video 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 Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Geforce GTX 770

Amazon.com

Check prices at:

Radeon R9 M295X

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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