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Computed

Falcon3 7B Instruct on an RTX 6000 Ada Generation

Yes — the unquantized weights fit with room for 32k tokens of context.

Verdict

Fits at FP16

44.2 GiB usable of 48 GB

Weights (Q4_K_M)

4.3 GiB

13.9 GiB at FP16 · 7.5B params · 6 of 6 quant rows are measured files

KV cache

112.0 KiB per token at FP16

28 layers × 4 KV heads × 256 dimensions

Speed ceiling

61 tok/s

960 GB/s ÷ bytes read per token

Every quant, against this card

Weight bytes are the size of the real published file wherever one exists — 6 of these6 rows are measured from bartowski/Falcon3-7B-Instruct-GGUF, the rest computed from the parameter count. Max context is what the KV cache can grow to in whatever memory the weights leave behind, capped at the 32k tokens this model was trained to address.

44.2 GiB usableFP16 / BF16 · 13.9 GiBQ8_0 · 7.4 GiBQ6_K · 5.7 GiBQ5_K_M · 5.0 GiBQ4_K_M · 4.3 GiBQ3_K_M · 3.4 GiB
Bars are the weight bytes at each precision; the dashed line is the usable memory of an RTX 6000 Ada Generation. Drawn from the computed byte counts, not sketched.
PrecisionBits/weightWeightsSourceFitsMax contextCeiling
FP16 / BF1616.0013.9 GiBmeasured fileyes32,768 (model cap)61 tok/s
Q8_08.517.4 GiBmeasured fileyes32,768 (model cap)108 tok/s
Q6_K6.575.7 GiBmeasured fileyes32,768 (model cap)136 tok/s
Q5_K_M5.715.0 GiBmeasured fileyes32,768 (model cap)153 tok/s
Q4_K_M4.904.3 GiBmeasured fileyes32,768 (model cap)174 tok/s
Q3_K_M3.963.4 GiBmeasured fileyes32,768 (model cap)208 tok/s

What the context actually costs

The KV cache is 2 · layers · kv_heads · head_dim bytes per token per element — 2 · 28 · 4 · 256 · 2 B = 112.0 KiB. It depends on the key/value head count, not the attention-head count and not the parameter count. This model shares 4 KV heads across 12 query heads, which divides the cache by 3 against multi-head attention.

ContextKV cache (FP16)KV cache (8-bit)Plus Q4_K_M weights
4,096448 MiB224 MiB4.7 GiB
8,192896 MiB448 MiB5.1 GiB
32,7683.5 GiB1.8 GiB7.8 GiB

The speed ceiling, and where it comes from

Generating one token reads every active weight from memory once. At FP16 / BF16 that is 13.9 GiB, plus a pass over the KV cache. An RTX 6000 Ada Generation moves 960 GB/s (384-bit × 20 Gbps), so the arithmetic ceiling is 61 tok/s. Treat it as a bound, not an estimate: attention overhead, kernel launches and imperfect memory access keep real runtimes at roughly 60–80% of it, and nothing pushes past it.

Where these numbers come from

The model

Parameters
7,455,550,464
Layers
28
Attention / KV heads
12 / 4
Head dimension
256
Trained context
32,768
Checkpoint as published
13.9 GiB

Read from tiiuae/Falcon3-7B-Instruct. The parameter count is the Hub's own total over the tensor shapes, not a figure taken from the model's name.

The accelerator

Memory
48 GB GDDR6 ECC
Bandwidth
960 GB/s
Bus
384-bit × 20 Gbps
Assumed usable
92% → 44.2 GiB

Capacity and bandwidth from the vendor's specification. The bandwidth figure is checked against the bus width and data rate it derives from. The usable fraction is an assumption, not a spec: a driver context, compute workspace and any attached display come out of the same pool before a weight is loaded.

Questions this pairing answers

How much VRAM does Falcon3 7B Instruct need?

13.9 GiB for the weights at FP16 — 7.5B parameters at two bytes each — and 4.3 GiB at Q4_K_M. The KV cache is on top of that and is not a fixed number: this model spends 112.0 KiB per token of context, so 8,192 tokens costs a further 896 MiB. An RTX 6000 Ada Generation makes 44.2 GiB of its 48 GB available on the assumption below.

Can an RTX 6000 Ada Generation run Falcon3 7B Instruct?

Yes — the unquantized weights fit with room for 32k tokens of context. That is the weights and the KV cache together, against 44.2 GiB of usable memory.

How fast will Falcon3 7B Instruct run on an RTX 6000 Ada Generation?

No faster than 61 tokens/second at FP16 / BF16, and in practice below it. Decoding is memory-bound: every token reads all 13.9 GiB of weights plus the cache, and this card moves 960 GB/s. That division is the ceiling — no kernel, runtime or driver beats it, and a real runtime typically reaches 60–80% of it.

Why does the context length change how much memory Falcon3 7B Instruct needs?

Because the KV cache holds one key and one value vector per token, per layer, for the whole conversation, and it is allocated separately from the weights. This model has 28 layers and 4 key/value heads of 256 dimensions, shared across 12 query heads — grouped-query attention, which divides the cache by 3. That works out at 112.0 KiB per token. Parameter count tells you nothing about this number.

The same model on a different card

A different model on the same card

All 62 models on RTX 6000 Ada Generation →

Method and limits. Weight bytes are the byte size of the real published file wherever one exists, and the model's exact parameter count times the published llama.cpp bits-per-weight where it does not. That distinction is on every row above and it matters at both ends: a sub-1B model's Q4_K_M file runs a third larger than the nominal figure because k-quants keep its embedding tables at higher precision, and an already-4-bit release cannot be quantized upward at all. The KV cache is 2 · layers · kv_heads · head_dim · bytes per token, summed over layers with each sliding-window layer capped at its window. The speed figure is a roofline bound, not a benchmark: bandwidth divided by bytes read per token, which no runtime exceeds and every runtime falls short of. The usable fraction of card memory is an assumption: 92% here, which is what this lane assumes for a dedicated card — the other class assumes 75%, so it is not one number applied to every device. That is the only assumed input on this page; every other figure is computed from the model config and the card's published specification. Nothing on this page is written by a language model. Architecture from the model's published config, fetched 2026-08-07.