readygpu

NVIDIA GeForce RTX 4070 Super vs AMD Radeon RX 7800 XT

For running models locally, priced in Canada. At 128k context the first runs 4 models fully in memory, the second 5.

In short

The AMD Radeon RX 7800 XT has more memory for models: 16 GB against 12 GB. At 128k context the AMD Radeon RX 7800 XT runs 5 of the models we track fully in memory and the NVIDIA GeForce RTX 4070 Super 4; only the AMD Radeon RX 7800 XT holds LFM2.5 8B-A1B. On the models both run fully in memory, the NVIDIA GeForce RTX 4070 Super is about 1.2× as fast as the AMD Radeon RX 7800 XT (estimated, median across models). In Canada the NVIDIA GeForce RTX 4070 Super costs $1,400 at Amazon and the AMD Radeon RX 7800 XT $1,397 at Amazon: the AMD Radeon RX 7800 XT is $3 cheaper.

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

NVIDIA GeForce RTX 4070 Super

$1,400

Amazon

Add to build
AMD Radeon RX 7800 XT

$1,397

Amazon

Add to build

Specifications

SpecNVIDIA GeForce RTX 4070 SuperAMD Radeon RX 7800 XT
GPUGeForce RTX 4070 SuperRadeon RX 7800 XT
Memory12 GB GDDR6X16 GB GDDR6
Memory bus192-bit256-bit
Memory bandwidth504 GB/s624 GB/s
FP16 compute71 TFLOPS74 TFLOPS
SoftwareCUDAROCm
Board power220 W263 W
PCIe generationGen 4Gen 4
PCIe lanesx16x16

What each runs

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

ModelNVIDIA GeForce RTX 4070 SuperAMD Radeon RX 7800 XT
Gemma 4 12B33tok/sQ4_K_M28tok/sQ6_K
Qwen 3.5 9B31tok/sQ4_K_M25tok/sQ8_0
Qwen 3.5 4B35tok/sQ8_039tok/sQ8_0
Gemma 4 E4B34tok/sQ5_K_M29tok/sQ8_0
LFM2.5 8B-A1Boffload28tok/sUD-Q6_K
Qwen 3.8 27Boffloadoffload
Qwen 3.6 27Boffloadoffload
Gemma 4 31Boffloadoffload
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
Kimi Linear 48B-A3Boffloadoffload
gpt-oss 20Boffloadoffload
Qwen3 Coder 30B-A3Boffloadoffload
Gemma 3 27Boffloadoffload
Mistral Small 3.2 24Boffloadoffload
Ministral 3 14Boffloadoffload
Qwen3 14Boffloadoffload
DeepSeek R1 0528 Qwen3 8Boffloadoffload
Qwen3 8Boffloadoffload
Phi-4 14Boffloadoffload
Ministral 3 8Boffloadoffload
Granite 4.2 8Boffloadoffload
Llama 3.1 8Boffloadoffload
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
Qwen 3.5 122B-A10Bwon'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
Mistral Small 4 119Bwon't runwon't run
GLM 4.5 Airwon't runwon't run
Qwen3 Next 80B-A3Bwon't runwon't run
Qwen3 32Bwon't runwon't run
DeepSeek R1 Distill Qwen 32Bwon't runwon't run
Llama 3.3 70Bwon't runwon't run

Questions

Which is better for local AI, the NVIDIA GeForce RTX 4070 Super or the AMD Radeon RX 7800 XT?
Choose the AMD Radeon RX 7800 XT to run bigger models. Choose the NVIDIA GeForce RTX 4070 Super for speed. Choose the AMD Radeon RX 7800 XT to spend less.
Which can run bigger models, the NVIDIA GeForce RTX 4070 Super or the AMD Radeon RX 7800 XT?
At 128k context the AMD Radeon RX 7800 XT runs 5 of the models we track fully in memory and the NVIDIA GeForce RTX 4070 Super 4; only the AMD Radeon RX 7800 XT holds LFM2.5 8B-A1B.
Which is faster for local AI, the NVIDIA GeForce RTX 4070 Super or the AMD Radeon RX 7800 XT?
On the models both run fully in memory, the NVIDIA GeForce RTX 4070 Super is about 1.2× as fast as the AMD Radeon RX 7800 XT (estimated, median across models).
What is the price difference between the NVIDIA GeForce RTX 4070 Super and the AMD Radeon RX 7800 XT?
In Canada the NVIDIA GeForce RTX 4070 Super costs $1,400 at Amazon and the AMD Radeon RX 7800 XT $1,397 at Amazon: the AMD Radeon RX 7800 XT is $3 cheaper.

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