Radeon RX 7700 XT vs HD 6490M Mac Edition
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 59 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 71.57 |
| Power efficiency | no data | 17.02 |
| Architecture | TeraScale 2 (2009−2015) | RDNA 3.0 (2022−2026) |
| GPU code name | Seymour | Navi 32 |
| Market segment | Laptop | Desktop |
| Release date | 2 May 2011 (15 years ago) | 25 August 2023 (2 years ago) |
| Launch price (MSRP) | no data | $449 |
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 | 160 | 3456 |
| Core clock speed | 750 MHz | 1435 MHz |
| Boost clock speed | no data | 2544 MHz |
| Number of transistors | 370 million | 28,100 million |
| Manufacturing process technology | 40 nm | 5 nm |
| Power consumption (TDP) | no data | 245 Watt |
| Texture fill rate | 6.000 | 549.5 |
| Floating-point processing power | 0.24 TFLOPS | 35.17 TFLOPS |
| ROPs | 4 | 96 |
| TMUs | 8 | 216 |
| Ray Tracing Cores | no data | 54 |
| L0 Cache | no data | 864 KB |
| L1 Cache | 16 KB | 768 KB |
| L2 Cache | 128 KB | 2 MB |
| L3 Cache | no data | 48 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).
| Interface | PCIe 2.0 x16 | PCIe 4.0 x16 |
| Length | no data | 267 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 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 | GDDR5 | GDDR6 |
| Maximum RAM amount | 256 MB | 12 GB |
| Memory bus width | 64 Bit | 192 Bit |
| Memory clock speed | 794 MHz | 2250 MHz |
| Memory bandwidth | 25.41 GB/s | 432.0 GB/s |
| Shared memory | - | - |
| 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 | No outputs | 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.2 (11_0) | 12 Ultimate (12_2) |
| Shader Model | 5.0 | 6.8 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 2.2 |
| Vulkan | N/A | 1.3 |
Pros & cons summary
| Recency | 2 May 2011 | 25 August 2023 |
| Maximum RAM amount | 256 MB | 12 GB |
| Chip lithography | 40 nm | 5 nm |
RX 7700 XT has an age advantage of 12 years, a 4700% higher maximum VRAM amount, and a 700% more advanced lithography process.
We couldn't decide between Radeon HD 6490M Mac Edition and Radeon RX 7700 XT. We've got no test results to judge.
Be aware that Radeon HD 6490M Mac Edition is a notebook graphics card while Radeon RX 7700 XT is a desktop one.
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