readygpu

Intel Arc A770 16GB vs AMD Radeon RX 7800 XT

For running models locally, priced in the UK. At 8k context the first runs 14 models fully in memory, the second 14.

In short

Both have 16 GB of memory for models; the Intel Arc A770 16GB has 560 GB/s of bandwidth and the AMD Radeon RX 7800 XT 624 GB/s. At 8k context both run the same 14 models we track fully in memory. On the models both run fully in memory, the AMD Radeon RX 7800 XT is about 1.2× as fast as the Intel Arc A770 16GB (estimated, median across models). In the UK the Intel Arc A770 16GB costs £588 at Amazon and the AMD Radeon RX 7800 XT £568 at Amazon: the AMD Radeon RX 7800 XT is £20 cheaper.

Updated . Speeds are estimates; how they are worked out.

Intel Arc A770 16GB

£588

Amazon

Add to build
AMD Radeon RX 7800 XT

£568

Amazon

Add to build

Specifications

SpecIntel Arc A770 16GBAMD Radeon RX 7800 XT
GPUArc A770 16GBRadeon RX 7800 XT
Memory16 GB GDDR616 GB GDDR6
Memory bus256-bit256-bit
Memory bandwidth560 GB/s624 GB/s
FP16 compute131 TFLOPS74 TFLOPS
SoftwareSYCL / oneAPIROCm
Board power225 W263 W
PCIe generationGen 4Gen 4
PCIe lanesx16x16

What each runs

Estimated decode speed with the most precise quant that fits each one est.

ModelIntel Arc A770 16GBAMD Radeon RX 7800 XT
gpt-oss 20B59tok/sMXFP478tok/sMXFP4
Gemma 4 12B21tok/sQ8_026tok/sQ8_0
Qwen 3.5 9B28tok/sQ8_035tok/sQ8_0
Ministral 3 14B23tok/sQ6_K28tok/sQ6_K
Qwen3 14B21tok/sQ6_K26tok/sQ6_K
DeepSeek R1 0528 Qwen3 8B28tok/sQ8_035tok/sQ8_0
Qwen3 8B28tok/sQ8_035tok/sQ8_0
Phi-4 14B20tok/sQ6_K25tok/sQ6_K
Qwen 3.5 4B58tok/sQ8_072tok/sQ8_0
Ministral 3 8B28tok/sQ8_034tok/sQ8_0
Granite 4.2 8B26tok/sQ8_032tok/sQ8_0
Gemma 4 E4B33tok/sQ8_041tok/sQ8_0
LFM2.5 8B-A1B105tok/sQ8_0140tok/sQ8_0
Llama 3.1 8B37tok/sQ6_K45tok/sQ6_K
Qwen 3.8 27Boffloadoffload
Qwen 3.5 122B-A10Boffloadoffload
Qwen 3.6 27Boffloadoffload
Gemma 4 31Boffloadoffload
Mistral Small 4 119Boffloadoffload
Qwen 3.6 35B-A3Boffloadoffload
Qwen 3.5 27Boffloadoffload
Gemma 4 26B-A4Boffloadoffload
Qwen 3.5 35B-A3Boffloadoffload
GLM 4.7 Flashoffloadoffload
Devstral Small 2 24Boffloadoffload
Nemotron 3.5 Lightning 30B-A3Boffloadoffload
Qwen3 Coder 30B-A3Boffloadoffload
Kimi Linear 48B-A3Boffloadoffload
Qwen3 32Boffloadoffload
Mistral Small 3.2 24Boffloadoffload
Gemma 3 27Boffloadoffload
DeepSeek R1 Distill Qwen 32Boffloadoffload
DeepSeek V4 Flashwon't runwon't run
GLM 5.3 Flashwon't runwon't run
Qwen 3.8 Flash Nextwon't runwon't run
MiniMax M2.7won't runwon't run
Nemotron 3 Super 120B-A12Bwon't runwon't run
Qwen3 Coder Nextwon't runwon't run
gpt-oss 120Bwon't runwon't run
GLM 4.5 Airwon't runwon't run
Qwen3 Next 80B-A3Bwon't runwon't run
Llama 3.3 70Bwon't runwon't run

Questions

Which is better for local AI, the Intel Arc A770 16GB or the AMD Radeon RX 7800 XT?
Choose the AMD Radeon RX 7800 XT for speed. Choose the AMD Radeon RX 7800 XT to spend less.
Which can run bigger models, the Intel Arc A770 16GB or the AMD Radeon RX 7800 XT?
At 8k context both run the same 14 models we track fully in memory.
Which is faster for local AI, the Intel Arc A770 16GB or the AMD Radeon RX 7800 XT?
On the models both run fully in memory, the AMD Radeon RX 7800 XT is about 1.2× as fast as the Intel Arc A770 16GB (estimated, median across models).
What is the price difference between the Intel Arc A770 16GB and the AMD Radeon RX 7800 XT?
In the UK the Intel Arc A770 16GB costs £588 at Amazon and the AMD Radeon RX 7800 XT £568 at Amazon: the AMD Radeon RX 7800 XT is £20 cheaper.

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