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GeForce GT 340 1GB vs Radeon HD 7870 XT
Intro
The GeForce GT 340 1GB comes with a core clock frequency of 550 MHz and a GDDR5 memory speed of 850 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It is made up of 96 SPUs, 32 Texture Address Units, and 8 Raster Operation Units.Compare all of that to the Radeon HD 7870 XT, which has clock speeds of 925 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs as well as 96 TAUs and 32 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 340 1GB |
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69 Watts |
| Radeon HD 7870 XT |
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185 Watts |
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Memory Bandwidth
In theory, the Radeon HD 7870 XT should perform quite a bit faster than the GeForce GT 340 1GB in general. (explain)
| Radeon HD 7870 XT |
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192000 MB/sec |
| GeForce GT 340 1GB |
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54400 MB/sec |
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Texel Rate
The Radeon HD 7870 XT is a lot (approximately 405%) faster with regards to texture filtering than the GeForce GT 340 1GB. (explain)| Radeon HD 7870 XT |
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88800 Mtexels/sec |
| GeForce GT 340 1GB |
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17600 Mtexels/sec |
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Pixel Rate
The Radeon HD 7870 XT should be much (approximately 573%) faster with regards to full screen anti-aliasing than the GeForce GT 340 1GB, and also will be able to handle higher screen resolutions without losing too much performance. (explain)| Radeon HD 7870 XT |
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29600 Mpixels/sec |
| GeForce GT 340 1GB |
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4400 Mpixels/sec |
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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 GT 340 1GBAmazon.com
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Radeon HD 7870 XTAmazon.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
| Model | GeForce GT 340 1GB | Radeon HD 7870 XT |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | February 2010 | November 2012 |
| Code Name | GT215 | Tahiti LE |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 550 MHz | 925 MHz |
| Memory Speed | 3400 MHz | 6000 MHz |
| Power (Max TDP) | 69 watts | 185 watts |
| Bandwidth | 54400 MB/sec | 192000 MB/sec |
| Texel Rate | 17600 Mtexels/sec | 88800 Mtexels/sec |
| Pixel Rate | 4400 Mpixels/sec | 29600 Mpixels/sec |
| Unified Shaders | 96 | 1536 |
| Texture Mapping Units | 32 | 96 |
| Render Output Units | 8 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 727 million | 4313 million |
| Bus | PCIe x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 10.1 | DirectX 11.1 |
| OpenGL Version | OpenGL 3.3 | OpenGL 4.3 |
Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen 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 texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 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 potential to reach the maximum fill rate.
GeForce GT 340 1GBAmazon.com
Check prices at:
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Radeon HD 7870 XTAmazon.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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