A40 PCIe vs Radeon HD 7950
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 465 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.20 | no data |
| Power efficiency | 4.42 | no data |
| Architecture | GCN 1.0 (2012−2020) | Ampere (2020−2025) |
| GPU code name | Tahiti | GA102 |
| Market segment | Desktop | Workstation |
| Design | reference | no data |
| Release date | 31 January 2012 (14 years ago) | 5 October 2020 (5 years ago) |
| Launch price (MSRP) | $449 | no data |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 1792 | 10752 |
| Compute units | 28 | no data |
| Core clock speed | no data | 1305 MHz |
| Boost clock speed | 1250 MHz | 1755 MHz |
| Number of transistors | 4,313 million | 28,300 million |
| Manufacturing process technology | 28 nm | 8 nm |
| Power consumption (TDP) | 200 Watt | 300 Watt |
| Texture fill rate | 89.60 | 589.7 |
| Floating-point processing power | 2.867 TFLOPS | 37.74 TFLOPS |
| ROPs | 32 | 112 |
| TMUs | 112 | 336 |
| Tensor Cores | no data | 336 |
| Ray Tracing Cores | no data | 84 |
| L1 Cache | 448 KB | 10.5 MB |
| L2 Cache | 768 KB | 6 MB |
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 | PCIe 3.0 x16 | no data |
| Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Length | 267 mm | 267 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 2x 6-pin | 8-pin EPS |
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 | 3 GB | 48 GB |
| Memory bus width | 384 Bit | 384 Bit |
| Memory clock speed | 1250 MHz | 1812 MHz |
| Memory bandwidth | 240 GB/s | 695.8 GB/s |
| Resizable BAR | - | + |
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 | 1x DVI, 1x HDMI, 2x mini-DisplayPort | 3x DisplayPort |
| Eyefinity | + | - |
| Number of Eyefinity displays | 6 | no data |
| HDMI | + | - |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| AppAcceleration | + | - |
| CrossFire | + | - |
| FreeSync | + | - |
| PowerTune | + | - |
| ZeroCore | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | DirectX® 11 | 12 Ultimate (12_2) |
| Shader Model | 5.1 | 6.5 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | - | 1.2 |
| CUDA | - | 8.6 |
| DLSS | - | + |
Pros & cons summary
| Recency | 31 January 2012 | 5 October 2020 |
| Maximum RAM amount | 3 GB | 48 GB |
| Chip lithography | 28 nm | 8 nm |
| Power consumption (TDP) | 200 Watt | 300 Watt |
HD 7950 has 50% lower power consumption.
A40 PCIe, on the other hand, has an age advantage of 8 years, a 1500% higher maximum VRAM amount, and a 250% more advanced lithography process.
We couldn't decide between Radeon HD 7950 and A40 PCIe. We've got no test results to judge.
Be aware that Radeon HD 7950 is a desktop graphics card while A40 PCIe is a workstation one.
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