Radeon Vega II 6CU 5300G vs ATI Radeon HD 3870 X2

Vega II 6CU 5300G has the higher overall gaming score, while Vega II 6CU 5300G offers the better price-to-performance ratio. The final choice depends on resolution and settings.

Vega II 6CU 5300G is the stronger streaming choice thanks to performance, hardware encoding, and application support. Check AV1, H.264, and HEVC support before buying.

Vega II 6CU 5300G is generally the better option for Blender and GPU rendering. Rendering-engine support and available VRAM also matter.

Vega II 6CU 5300G offers more overall performance, while Vega II 6CU 5300G offers more memory headroom. Codecs, hardware encoders, and editor optimization can change the result.

Vega II 6CU 5300G is the more practical option for local AI workloads. VRAM capacity, compute libraries, and framework compatibility are especially important.

Vega II 6CU 5300G is the most rational 1080p choice, where high frame rates and cost per frame matter most.

Vega II 6CU 5300G leads in combined 1440p performance. Vega II 6CU 5300G can be preferable for heavy textures and games with high VRAM usage.

Vega II 6CU 5300G is preferable for 4K, where total performance, memory bandwidth, and VRAM capacity have the greatest impact.

ATI Radeon HD 3870 X2 is easier to use in a quiet build because of its lower estimated power and thermal load. Actual noise depends on the specific cooler.

ATI Radeon HD 3870 X2 is the safer candidate because its stated power consumption is lower. Verify PSU wattage, age, and power connectors.

Consider upgrading to Vega II 6CU 5300G if your current device no longer delivers the required FPS, memory capacity, or feature support. A gain below 15–20% is usually worth waiting for a price cut.