Arc A770 vs Radeon RX 7900 GRE
The Radeon RX 7900 GRE pulls ahead here — in a different league, about 115% ahead of the Arc A770.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Radeon RX 7900 GRE vs Arc A770: In-Depth Breakdown
Performance: Radeon RX 7900 GRE vs Arc A770
The Radeon RX 7900 GRE is dramatically faster, around 115% ahead of the Arc A770. That gap is enough to move it up a tier: the Radeon RX 7900 GRE is comfortable at 4K with upscaling and native 1440p, while the Arc A770 is better matched to 1080p.
Power & Efficiency
At 225W vs 260W, the Arc A770 is the gentler load on your system. The Radeon RX 7900 GRE's extra power draw buys more performance per watt, not just more heat — worth it if your PSU has the headroom. Its more modern RDNA 3 architecture on a TSMC N5 process is part of why it does more with each watt.
Generation & Longevity
The Radeon RX 7900 GRE is roughly 2 years newer than the Arc A770 (RDNA 3 vs Alchemist), so it generally benefits from a more modern architecture and longer driver-support runway.
Features & Ecosystem
Beyond raw numbers, the Arc A770 brings Intel XeSS upscaling and AV1 encoding, while the Radeon RX 7900 GRE offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.
Which should you buy: Arc A770 or Radeon RX 7900 GRE?
The Radeon RX 7900 GRE is the faster card by about 115%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.
Frequently Asked Questions
Is the Radeon RX 7900 GRE better than the Arc A770?
Which is better for 4K gaming, the Arc A770 or the Radeon RX 7900 GRE?
Which should you buy: Arc A770 or Radeon RX 7900 GRE?
Technical Specifications Comparison
Architecture & Cores
| Specification | Arc A770 | Radeon RX 7900 GRE |
|---|---|---|
| Architecture | Alchemist | RDNA 3 |
| Process Node | TSMC N6 | TSMC N5 |
| CUDA Cores (Shading Units / Stream Processors) | 4,096 | 5,120✓ |
| Ray Tracing Cores | 32 | 80✓ |
| Tensor / AI Cores | 512✓ | 160 |
Clock Speeds
| Specification | Arc A770 | Radeon RX 7900 GRE |
|---|---|---|
| Base Clock | 2,100 MHz✓ | 1,287 MHz |
| Boost Clock | 2,400 MHz✓ | 2,245 MHz |
Memory
| Specification | Arc A770 | Radeon RX 7900 GRE |
|---|---|---|
| VRAM Capacity | 16 GB | 16 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 256-bit | 256-bit |
| Memory Speed | 17.5 Gbps | 18 Gbps✓ |
| Bandwidth | 560 GB/s | 576 GB/s✓ |
Connectivity & Power
| Specification | Arc A770 | Radeon RX 7900 GRE |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 225 W✓ | 260 W |
| Power Connectors | 2x 8-pin | 2x 8-pin |
| Released | Oct 2022 | Feb 2024 |
Related Reading
Intel Arc A770 in 2026: The Used-Market 16GB Card — What Still Works, and What Still Breaks
The A770 is discontinued Alchemist silicon with a 16GB frame buffer and a 256-bit bus. Four years of driver work fixed a lot — and left some things broken. An honest read on who should buy one used, and who absolutely should not.
How to Run Powerful Local LLMs on a Budget GPU in 2026
An 8GB GPU can now run near-flagship open models locally. Here's how QAT, MoE, llama.cpp offloading and MTP turn a budget PC into a private AI rig in 2026.
Intel Arc Alchemist in 2026: Is a Used A580, A750 or A770 Still Worth Buying?
Every Arc Alchemist card is discontinued, and Battlemage replaced them. So what does a used A580, A750 or A770 still buy you — and at what price does it beat a new Arc B580? An honest retrospective on Intel's first discrete GPUs.