Radeon RX 7900 XTX vs Instinct MI25
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | not rated | 7 |
| Place by popularity | not in top-100 | 54 |
| Cost-effectiveness evaluation | no data | 27.73 |
| Architecture | GCN 5.0 (2017−2020) | RDNA 3 |
| GPU code name | Vega 10 | Navi 31 XTX |
| Market segment | Desktop | Desktop |
| Release date | 27 June 2017 (6 years ago) | 3 November 2022 (1 year ago) |
| Launch price (MSRP) | no data | $999 |
| Current price | $4374 | $859 (0.9x MSRP) |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
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 | 4096 | 6144 |
| Core clock speed | 1400 MHz | no data |
| Boost clock speed | 1500 MHz | 2270 MHz |
| Number of transistors | 12,500 million | 57,700 million |
| Manufacturing process technology | 14 nm | 5 nm |
| Power consumption (TDP) | 300 Watt | 355 Watt |
| Texture fill rate | 384.0 | 959.6 |
| Floating-point performance | 12,288 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).
| Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Length | 267 mm | 287 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 2x 8-pin | 2x 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 | HBM2 | GDDR6 |
| Maximum RAM amount | 16 GB | 24 GB |
| Memory bus width | 2048 Bit | 384 Bit |
| Memory clock speed | 1704 MHz | 20000 MHz |
| Memory bandwidth | 436.2 GB/s | 960.0 GB/s |
| Shared memory | no data | - |
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 | No outputs | 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C |
| HDMI | no data | + |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_1) | 12 Ultimate (12_2) |
| Shader Model | 6.4 | 6.7 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.1 |
| Vulkan | 1.1.125 | 1.3 |
Synthetic benchmark performance
Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.
Passmark
This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. 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.
Benchmark coverage: 25%
RX 7900 XTX outperforms Instinct MI25 by 521% in Passmark.
GeekBench 5 OpenCL
Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.
Benchmark coverage: 9%
RX 7900 XTX outperforms Instinct MI25 by 193% in GeekBench 5 OpenCL.
GeekBench 5 Vulkan
Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses Vulkan API by AMD & Khronos Group.
Benchmark coverage: 5%
RX 7900 XTX outperforms Instinct MI25 by 169% in GeekBench 5 Vulkan.
Pros & cons summary
| Recency | 27 June 2017 | 3 November 2022 |
| Maximum RAM amount | 16 GB | 24 GB |
| Chip lithography | 14 nm | 5 nm |
| Power consumption (TDP) | 300 Watt | 355 Watt |
We couldn't decide between Radeon Instinct MI25 and Radeon RX 7900 XTX. 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
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
