Radeon R9 255 OEM vs GeForce GTX 680
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 360 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.96 | no data |
| Power efficiency | 5.16 | no data |
| Architecture | Kepler (2012−2018) | GCN 1.0 (2011−2020) |
| GPU code name | GK104 | Cape Verde |
| Market segment | Desktop | Desktop |
| Release date | 22 March 2012 (12 years ago) | 21 December 2013 (10 years ago) |
| Launch price (MSRP) | $499 | no data |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 1536 | 512 |
| Core clock speed | 1006 MHz | 900 MHz |
| Boost clock speed | 1058 MHz | 930 MHz |
| Number of transistors | 3,540 million | 1,500 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 195 Watt | 65 Watt |
| Texture fill rate | 135.4 | 29.76 |
| Floating-point processing power | 3.25 TFLOPS | 0.9523 TFLOPS |
| ROPs | 32 | 16 |
| TMUs | 128 | 32 |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Bus support | PCI Express 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Length | 254 mm | no data |
| Height | 4.376" (11.1 cm) | no data |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 2x 6-pin | 1x 6-pin |
| SLI options | + | - |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | GDDR5 | GDDR5 |
| Maximum RAM amount | 2048 MB | 2 GB |
| Memory bus width | 256-bit GDDR5 | 128 Bit |
| Memory clock speed | 1502 MHz | 1150 MHz |
| Memory bandwidth | 192.2 GB/s | 73.6 GB/s |
| Shared memory | - | - |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort | No outputs |
| Multi monitor support | 4 displays | no data |
| HDMI | + | - |
| HDCP | + | - |
| Maximum VGA resolution | 2048x1536 | no data |
| Audio input for HDMI | Internal | no data |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 (11_1) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.2 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.2.131 |
| CUDA | + | - |
Pros & cons summary
| Recency | 22 March 2012 | 21 December 2013 |
| Power consumption (TDP) | 195 Watt | 65 Watt |
R9 255 OEM has an age advantage of 1 year, and 200% lower power consumption.
We couldn't decide between GeForce GTX 680 and Radeon R9 255 OEM. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
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