ATI Radeon HD 2900 PRO vs HD 7970 X2
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 1024 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 0.58 |
| Architecture | GCN 1.0 (2012−2020) | TeraScale (2005−2013) |
| GPU code name | New Zealand | R600 |
| Market segment | Desktop | Desktop |
| Release date | 31 August 2012 (13 years ago) | 12 December 2007 (18 years ago) |
| Launch price (MSRP) | $899 | no data |
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 | 2048 ×2 | 320 |
| Core clock speed | 925 MHz | 600 MHz |
| Number of transistors | 4,313 million | 720 million |
| Manufacturing process technology | 28 nm | 80 nm |
| Power consumption (TDP) | 500 Watt | 200 Watt |
| Texture fill rate | 118.4 ×2 | 9.600 |
| Floating-point processing power | 3.789 TFLOPS ×2 | 0.384 TFLOPS |
| ROPs | 32 ×2 | 16 |
| TMUs | 128 ×2 | 16 |
| L1 Cache | 512 KB | no data |
| L2 Cache | 768 KB | 128 KB |
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 x16 | PCIe 1.0 x16 |
| Length | 292 mm | 241 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 3x 8-pin | 1x 8-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 | GDDR5 | GDDR3 |
| Maximum RAM amount | 3 GB ×2 | 512 MB |
| Memory bus width | 384 Bit ×2 | 256 Bit |
| Memory clock speed | 1375 MHz | 800 MHz |
| Memory bandwidth | 264.0 GB/s ×2 | 51.2 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 | 1x DVI, 4x mini-DisplayPort | 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_1) | 10.0 (10_0) |
| Shader Model | 5.1 | 4.0 |
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.2 | N/A |
| Vulkan | 1.2.131 | N/A |
Pros & cons summary
| Recency | 31 August 2012 | 12 December 2007 |
| Maximum RAM amount | 3 GB | 512 MB |
| Chip lithography | 28 nm | 80 nm |
| Power consumption (TDP) | 500 Watt | 200 Watt |
HD 7970 X2 has an age advantage of 4 years, a 500% higher maximum VRAM amount, and a 186% more advanced lithography process.
ATI HD 2900 PRO, on the other hand, has 150% lower power consumption.
We couldn't decide between Radeon HD 7970 X2 and Radeon HD 2900 PRO. We've got no test results to judge.
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