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Geforce GTX 770 vs Radeon R9 295X2

Intro

The Geforce GTX 770 comes with a clock frequency of 1046 MHz and a GDDR5 memory speed of 1753 MHz. It also makes use of a 256-bit memory bus, and uses a 28 nm design. It is comprised of 1536 SPUs, 128 TAUs, and 32 ROPs.

Compare those specifications to the Radeon R9 295X2, which features a clock speed of 1018 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 512-bit memory bus, and uses a 28 nm design. It is made up of 2816 SPUs, 176 TAUs, and 64 Raster Operation Units.

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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

Radeon R9 295X2 21205 points
Geforce GTX 770 7854 points
Difference: 13351 (170%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 770 230 Watts
Radeon R9 295X2 500 Watts
Difference: 270 Watts (117%)

Memory Bandwidth

Performance-wise, the Radeon R9 295X2 should in theory be quite a bit better than the Geforce GTX 770 in general. (explain)

Radeon R9 295X2 640000 MB/sec
Geforce GTX 770 224384 MB/sec
Difference: 415616 (185%)

Texel Rate

The Radeon R9 295X2 should be a lot (approximately 168%) faster with regards to anisotropic filtering than the Geforce GTX 770. (explain)

Radeon R9 295X2 358336 Mtexels/sec
Geforce GTX 770 133888 Mtexels/sec
Difference: 224448 (168%)

Pixel Rate

The Radeon R9 295X2 should be a lot (more or less 289%) better at full screen anti-aliasing than the Geforce GTX 770, and also will be able to handle higher screen resolutions while still performing well. (explain)

Radeon R9 295X2 130304 Mpixels/sec
Geforce GTX 770 33472 Mpixels/sec
Difference: 96832 (289%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Geforce GTX 770

Amazon.com

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Radeon R9 295X2

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 GTX 770 Radeon R9 295X2
Manufacturer nVidia AMD
Year May 2013 April 2014
Code Name GK104 Vesuvius
Memory 2048 MB 4096 MB (x2)
Core Speed 1046 MHz 1018 MHz (x2)
Memory Speed 7012 MHz 5000 MHz (x2)
Power (Max TDP) 230 watts 500 watts
Bandwidth 224384 MB/sec 640000 MB/sec
Texel Rate 133888 Mtexels/sec 358336 Mtexels/sec
Pixel Rate 33472 Mpixels/sec 130304 Mpixels/sec
Unified Shaders 1536 2816 (x2)
Texture Mapping Units 128 176 (x2)
Render Output Units 32 64 (x2)
Bus Type GDDR5 GDDR5
Bus Width 256-bit 512-bit (x2)
Fab Process 28 nm 28 nm
Transistors 3540 million 6200 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 max amount of information (in units of MB per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - 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 770

Amazon.com

Check prices at:

Radeon R9 295X2

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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