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Geforce GTX 760 vs Radeon HD 4670 1GB

Intro

The Geforce GTX 760 features clock speeds of 980 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 RAM. It features 1152 SPUs along with 96 TAUs and 32 ROPs.

Compare all that to the Radeon HD 4670 1GB, which makes use of a 55 nm design. AMD has clocked the core speed at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 RAM works at a speed of 1100 MHz on this model. It features 320(64x5) SPUs along with 32 TAUs and 8 ROPs.

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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

In theory, the Geforce GTX 760 is 446% quicker than the Radeon HD 4670 1GB in general, due to its greater data rate. (explain)

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

Texel Rate

The Geforce GTX 760 is much (more or less 292%) more effective 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

The Geforce GTX 760 is much (approximately 423%) more effective at full screen anti-aliasing than the Radeon HD 4670 1GB, and will be able to handle higher resolutions while still performing well. (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

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Geforce GTX 760

Amazon.com

Radeon HD 4670 1GB

Amazon.com

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 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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If 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 amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics 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 amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of 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.

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