GeForce 6800 GT vs 840A
Aggregate performance score
We've compared GeForce 840A with GeForce 6800 GT, including specs and performance data.
840A outperforms 6800 GT by a whopping 675% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 851 | 1348 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 6.08 | 0.39 |
| Architecture | Maxwell (2014−2017) | Curie (2003−2013) |
| GPU code name | GM108 | NV45 |
| Market segment | Laptop | Desktop |
| Release date | 17 March 2014 (11 years ago) | 8 June 2004 (21 years ago) |
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 | 384 | no data |
| Core clock speed | 1029 MHz | 350 MHz |
| Boost clock speed | 1124 MHz | no data |
| Number of transistors | no data | 222 million |
| Manufacturing process technology | 28 nm | 130 nm |
| Power consumption (TDP) | 33 Watt | 67 Watt |
| Texture fill rate | 17.98 | 5.600 |
| Floating-point processing power | 0.8632 TFLOPS | no data |
| ROPs | 8 | 16 |
| TMUs | 16 | 16 |
| L1 Cache | 192 KB | no data |
| L2 Cache | 1024 KB | no data |
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).
| Interface | PCIe 3.0 x8 | PCIe 1.0 x16 |
| Width | no data | 1-slot |
| Supplementary power connectors | no data | 1x 6-pin |
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 | DDR3 | GDDR3 |
| Maximum RAM amount | 2 GB | 256 MB |
| Memory bus width | 64 Bit | 256 Bit |
| Memory clock speed | 1001 MHz | 500 MHz |
| Memory bandwidth | 16.02 GB/s | 32 GB/s |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | No outputs | 2x DVI, 1x S-Video |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 9.0c (9_3) |
| Shader Model | 5.1 | 3.0 |
| OpenGL | 4.6 | 2.1 |
| OpenCL | 1.2 | N/A |
| Vulkan | 1.1.126 | N/A |
| CUDA | 5.0 | - |
Synthetic benchmarks
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
| Performance score | 2.48 | 0.32 |
| Recency | 17 March 2014 | 8 June 2004 |
| Maximum RAM amount | 2 GB | 256 MB |
| Chip lithography | 28 nm | 130 nm |
| Power consumption (TDP) | 33 Watt | 67 Watt |
GeForce 840A has a 675% higher aggregate performance score, an age advantage of 9 years, a 700% higher maximum VRAM amount, a 364.3% more advanced lithography process, and 103% lower power consumption.
The GeForce 840A is our recommended choice as it beats the GeForce 6800 GT in performance tests.
Be aware that GeForce 840A is a notebook graphics card while GeForce 6800 GT is a desktop one.
Other comparisons
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