GeForce RTX 4090 Mobile vs Radeon HD 6870 X2
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
Place in performance ranking | not rated | 39 |
Place by popularity | not in top-100 | not in top-100 |
Architecture | TeraScale 2 (2009−2015) | Ada Lovelace (2022−2024) |
GPU code name | Barts | GN21-X11 |
Market segment | Desktop | Laptop |
Release date | 8 July 2011 (13 years ago) | 3 January 2023 (1 year ago) |
Launch price (MSRP) | $520 | no data |
Detailed specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
Pipelines / CUDA cores | 1120 | 9728 |
Core clock speed | 900 MHz | no data |
Boost clock speed | no data | 2040 MHz |
Number of transistors | 1,700 million | 45,900 million |
Manufacturing process technology | 40 nm | 5 nm |
Power consumption (TDP) | 300 Watt | 150 Watt (80 - 150 Watt TGP) |
Texture fill rate | 50.40 | 515.3 |
Floating-point performance | 2.016 gflops | 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).
Laptop size | no data | large |
Interface | PCIe 2.0 x16 | PCIe 4.0 x16 |
Length | 304 mm | no data |
Width | 2-slot | no data |
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 | GDDR6 |
Maximum RAM amount | 1 GB | 16 GB |
Memory bus width | 256 Bit | 256 Bit |
Memory clock speed | 4200 MHz | 20000 MHz |
Memory bandwidth | 134.4 GB/s | 576.0 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 | 2x DVI, 1x HDMI, 2x mini-DisplayPort | Portable Device Dependent |
HDMI | + | - |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
DirectX | 11.2 (11_0) | 12 Ultimate (12_2) |
Shader Model | 5.0 | 6.7 |
OpenGL | 4.4 | 4.6 |
OpenCL | 1.2 | 3.0 |
Vulkan | N/A | 1.3 |
CUDA | - | 8.9 |
Pros & cons summary
Recency | 8 July 2011 | 3 January 2023 |
Maximum RAM amount | 1 GB | 16 GB |
Chip lithography | 40 nm | 5 nm |
Power consumption (TDP) | 300 Watt | 150 Watt |
RTX 4090 Mobile has an age advantage of 11 years, a 1500% higher maximum VRAM amount, a 700% more advanced lithography process, and 100% lower power consumption.
We couldn't decide between Radeon HD 6870 X2 and GeForce RTX 4090 Mobile. We've got no test results to judge.
Be aware that Radeon HD 6870 X2 is a desktop card while GeForce RTX 4090 Mobile is a notebook one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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