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NVIDIA GeForce RTX 4070 Ti Super vs AMD Radeon RX 7800 XT

For running models locally, priced in the US. At 64k context the first runs 10 models fully in memory, the second 10.

In short

Both have 16 GB of memory for models; the NVIDIA GeForce RTX 4070 Ti Super has 672 GB/s of bandwidth and the AMD Radeon RX 7800 XT 624 GB/s. At 64k context both run the same 10 models we track fully in memory. On the models both run fully in memory, the NVIDIA GeForce RTX 4070 Ti Super is about 1.2× as fast as the AMD Radeon RX 7800 XT (estimated, median across models). In the US the NVIDIA GeForce RTX 4070 Ti Super costs $1,013 at Amazon and the AMD Radeon RX 7800 XT $550 at eBay: the AMD Radeon RX 7800 XT is $463 cheaper.

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

NVIDIA GeForce RTX 4070 Ti Super

$1,013

Amazon

Add to build
AMD Radeon RX 7800 XT

$550

eBay

Add to build

Specifications

SpecNVIDIA GeForce RTX 4070 Ti SuperAMD Radeon RX 7800 XT
GPUGeForce RTX 4070 Ti SuperRadeon RX 7800 XT
Memory16 GB GDDR6X16 GB GDDR6
Memory bus256-bit256-bit
Memory bandwidth672 GB/s624 GB/s
FP16 compute88 TFLOPS74 TFLOPS
SoftwareCUDAROCm
Board power285 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 Ti SuperAMD Radeon RX 7800 XT
gpt-oss 20B62tok/sMXFP451tok/sMXFP4
Gemma 4 12B30tok/sQ8_024tok/sQ8_0
Qwen 3.5 9B36tok/sQ8_029tok/sQ8_0
DeepSeek R1 0528 Qwen3 8B28tok/sQ4_K_M23tok/sQ4_K_M
Qwen3 8B28tok/sQ4_K_M23tok/sQ4_K_M
Qwen 3.5 4B62tok/sQ8_051tok/sQ8_0
Ministral 3 8B27tok/sQ5_K_M24tok/sQ4_K_M
Gemma 4 E4B41tok/sQ8_034tok/sQ8_0
LFM2.5 8B-A1B58tok/sQ8_048tok/sQ8_0
Llama 3.1 8B27tok/sQ6_K24tok/sQ5_K_M
Qwen 3.8 27Boffloadoffload
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
Kimi Linear 48B-A3Boffloadoffload
Qwen3 Coder 30B-A3Boffloadoffload
Qwen3 32Boffloadoffload
Gemma 3 27Boffloadoffload
Mistral Small 3.2 24Boffloadoffload
DeepSeek R1 Distill Qwen 32Boffloadoffload
Ministral 3 14Boffloadoffload
Qwen3 14Boffloadoffload
Phi-4 14Boffloadoffload
Granite 4.2 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
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 NVIDIA GeForce RTX 4070 Ti Super or the AMD Radeon RX 7800 XT?
Choose the NVIDIA GeForce RTX 4070 Ti Super for speed. Choose the AMD Radeon RX 7800 XT to spend less.
Which can run bigger models, the NVIDIA GeForce RTX 4070 Ti Super or the AMD Radeon RX 7800 XT?
At 64k context both run the same 10 models we track fully in memory.
Which is faster for local AI, the NVIDIA GeForce RTX 4070 Ti Super or the AMD Radeon RX 7800 XT?
On the models both run fully in memory, the NVIDIA GeForce RTX 4070 Ti 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 Ti Super and the AMD Radeon RX 7800 XT?
In the US the NVIDIA GeForce RTX 4070 Ti Super costs $1,013 at Amazon and the AMD Radeon RX 7800 XT $550 at eBay: the AMD Radeon RX 7800 XT is $463 cheaper.

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