 |
 |
GeForce GTX 950 vs Radeon HD 4850 2GB
Intro
The GeForce GTX 950 comes with a core clock frequency of 1024 MHz and a GDDR5 memory speed of 1652 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 768 SPUs, 48 Texture Address Units, and 32 ROPs.Compare all of that to the Radeon HD 4850 2GB, which comes with core clock speeds of 625 MHz on the GPU, and 993 MHz on the 2048 MB of GDDR4 memory. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 950 |
|
90 Watts |
| Radeon HD 4850 2GB |
|
110 Watts |
|
|
Memory Bandwidth
Theoretically speaking, the GeForce GTX 950 should be much faster than the Radeon HD 4850 2GB in general. (explain)
| GeForce GTX 950 |
|
105728 MB/sec |
| Radeon HD 4850 2GB |
|
63552 MB/sec |
|
|
Texel Rate
The GeForce GTX 950 will be a lot (more or less 97%) better at AF than the Radeon HD 4850 2GB. (explain)| GeForce GTX 950 |
|
49152 Mtexels/sec |
| Radeon HD 4850 2GB |
|
25000 Mtexels/sec |
|
|
Pixel Rate
If using lots of anti-aliasing is important to you, then the GeForce GTX 950 is the winner, by a large margin. (explain)| GeForce GTX 950 |
|
32768 Mpixels/sec |
| Radeon HD 4850 2GB |
|
10000 Mpixels/sec |
|
|
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 950Amazon.com
Check prices at:
|
Radeon HD 4850 2GBAmazon.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
| Model | GeForce GTX 950 | Radeon HD 4850 2GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | August 2015 | Jun 25, 2008 |
| Code Name | GM206 | RV770 PRO |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 1024 MHz | 625 MHz |
| Memory Speed | 6608 MHz | 1986 MHz |
| Power (Max TDP) | 90 watts | 110 watts |
| Bandwidth | 105728 MB/sec | 63552 MB/sec |
| Texel Rate | 49152 Mtexels/sec | 25000 Mtexels/sec |
| Pixel Rate | 32768 Mpixels/sec | 10000 Mpixels/sec |
| Unified Shaders | 768 | 800(160x5) |
| Texture Mapping Units | 48 | 40 |
| Render Output Units | 32 | 16 |
| Bus Type | GDDR5 | GDDR4 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 28 nm | 55 nm |
| Transistors | 2940 million | 956 million |
| Bus | PCIe 3.0 x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 12.0 | DirectX 10.1 |
| OpenGL Version | OpenGL 4.5 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum number 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 calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.
GeForce GTX 950Amazon.com
Check prices at:
|
Radeon HD 4850 2GBAmazon.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.
|
Comments
Be the first to leave a comment!