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Geforce GTX 760 vs Radeon HD 4670 1GB


Intro

The Geforce GTX 760 makes use of a 28 nm design. nVidia has clocked the core speed at 980 MHz. The GDDR5 memory runs at a speed of 1502 MHz on this particular model. It features 1152 SPUs as well as 96 Texture Address Units and 32 Rasterization Operator Units.

Compare those specifications to the Radeon HD 4670 1GB, which features a clock frequency of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory frequency of 1100 MHz. It also uses a 128-bit memory bus, and uses a 55 nm design. It features 320(64x5) SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB 70 Watts
Geforce GTX 760 170 Watts
Difference: 100 Watts (143%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 760 will be 446% faster than the Radeon HD 4670 1GB overall, due to its greater bandwidth. (explain)

Geforce GTX 760 192256 MB/sec
Radeon HD 4670 1GB 35200 MB/sec
Difference: 157056 (446%)

Texel Rate

The Geforce GTX 760 should be quite a bit (about 292%) better at texture filtering than the Radeon HD 4670 1GB. (explain)

Geforce GTX 760 94080 Mtexels/sec
Radeon HD 4670 1GB 24000 Mtexels/sec
Difference: 70080 (292%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 760 is a better choice, and very much so. (explain)

Geforce GTX 760 31360 Mpixels/sec
Radeon HD 4670 1GB 6000 Mpixels/sec
Difference: 25360 (423%)

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

Geforce GTX 760

Radeon HD 4670 1GB

Specifications

Display Specifications

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Model Geforce GTX 760 Radeon HD 4670 1GB
Manufacturer nVidia AMD
Year June 2013 Sep 10, 2008
Code Name GK104 RV730 XT
Memory 2048 MB 1024 MB
Core Speed 980 MHz 750 MHz
Memory Speed 6008 MHz 2200 MHz
Power (Max TDP) 170 watts 70 watts
Bandwidth 192256 MB/sec 35200 MB/sec
Texel Rate 94080 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 31360 Mpixels/sec 6000 Mpixels/sec
Unified Shaders 1152 320(64x5)
Texture Mapping Units 96 32
Render Output Units 32 8
Bus Type GDDR5 GDDR4/GDDR3/DDR3/DDR2
Bus Width 256-bit 128-bit
Fab Process 28 nm 55 nm
Transistors 3540 million 514 million
Bus PCIe 3.0 x16 PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 11.0 DirectX 10.1
OpenGL Version OpenGL 4.3 OpenGL 3.0

Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 max fill rate.

Geforce GTX 760

Radeon HD 4670 1GB

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