GRITLM 8x7B TPS calculator

Open weights Contextual AI,The University of Hong Kong,Microsoft 46.7B parameters April 2024

Each card below is assessed against this model at the context length and minimum quality you choose. Speed is an estimate for a single request, calculated from the card's memory bandwidth and the size of the model once compressed.

Calculated for this model

93 of 818 cards that can run it

Smallest card that fits

Radeon PRO V710

28 GB · Q3_K_M · 9.6 tok/s

Fastest card

B200

72.6 tok/s · 180 GB

Which GPUs can run GRITLM 8x7B?

Set the inputs, read the answer

A longer conversation needs more memory, which can push this model off smaller cards.

Hides cards that would only fit the model by compressing it below this point.

93 cards match

Calculating
Needs Quantisation Fit
72.6 tok/s

44–116 · low confidence

B200 NVIDIA 180 GB 8,000 GB/s Jan 2024 50.7 GB Q8_0 Comfortable
72.6 tok/s

44–116 · low confidence

B300 NVIDIA 288 GB 8,000 GB/s Sep 2025 50.7 GB Q8_0 Comfortable
57.9 tok/s

35–93 · low confidence

Radeon Instinct MI350X AMD 288 GB 8,190 GB/s Jan 2025 50.7 GB Q8_0 Comfortable
57.9 tok/s

35–93 · low confidence

Radeon Instinct MI355X AMD 288 GB 8,190 GB/s Jan 2025 50.7 GB Q8_0 Comfortable
46.3 tok/s

28–74 · low confidence

Radeon Instinct MI300 AMD 128 GB 6,550 GB/s Jan 2023 50.7 GB Q8_0 Comfortable
44.4 tok/s

27–71 · low confidence

H200 NVL NVIDIA 141 GB 4,890 GB/s Nov 2024 50.7 GB Q8_0 Comfortable
44.4 tok/s

27–71 · low confidence

H200 SXM 141 GB NVIDIA 141 GB 4,890 GB/s Nov 2024 50.7 GB Q8_0 Comfortable
42.4 tok/s

25–68 · low confidence

Radeon Instinct MI325X AMD 256 GB 6,000 GB/s Oct 2024 50.7 GB Q8_0 Comfortable
41.6 tok/s

25–67 · low confidence

DRIVE A100 PROD NVIDIA 32 GB 1,870 GB/s May 2020 26.2 GB IQ4_XS Tight
41.6 tok/s

25–67 · low confidence

GRID A100A NVIDIA 32 GB 1,870 GB/s May 2020 26.2 GB IQ4_XS Tight
39.9 tok/s

24–64 · low confidence

GeForce RTX 5090 NVIDIA 32 GB 1,790 GB/s Jan 2025 26.2 GB IQ4_XS Tight
39.9 tok/s

24–64 · low confidence

GeForce RTX 5090 D NVIDIA 32 GB 1,790 GB/s Jan 2025 26.2 GB IQ4_XS Tight
37.7 tok/s

23–60 · low confidence

Radeon Instinct MI300A AMD 128 GB 5,325 GB/s Dec 2023 50.7 GB Q8_0 Comfortable
37.7 tok/s

23–60 · low confidence

Radeon Instinct MI300X AMD 192 GB 5,325 GB/s Dec 2023 50.7 GB Q8_0 Comfortable
37.7 tok/s

23–60 · low confidence

Radeon Instinct MI308X AMD 192 GB 5,325 GB/s Dec 2023 50.7 GB Q8_0 Comfortable
35.7 tok/s

21–57 · low confidence

H100 NVL 94 GB NVIDIA 94 GB 3,940 GB/s Mar 2023 50.7 GB Q8_0 Comfortable
30.5 tok/s

18–49 · low confidence

H100 PCIe 96 GB NVIDIA 96 GB 3,360 GB/s Mar 2023 50.7 GB Q8_0 Comfortable
30.5 tok/s

18–49 · low confidence

H100 SXM5 80 GB NVIDIA 80 GB 3,360 GB/s Oct 2022 50.7 GB Q8_0 Comfortable
30.5 tok/s

18–49 · low confidence

H100 SXM5 94 GB NVIDIA 94 GB 3,360 GB/s Mar 2023 50.7 GB Q8_0 Comfortable
30.5 tok/s

18–49 · low confidence

H100 SXM5 96 GB NVIDIA 96 GB 3,360 GB/s Mar 2023 50.7 GB Q8_0 Comfortable
30.5 tok/s

18–49 · low confidence

H800 SXM5 NVIDIA 80 GB 3,360 GB/s Mar 2023 50.7 GB Q8_0 Comfortable
25.3 tok/s

15–40 · low confidence

A100 PCIe 40 GB NVIDIA 40 GB 1,560 GB/s Jun 2020 34.4 GB Q5_K_M Tight
25.3 tok/s

15–40 · low confidence

A100 SXM4 40 GB NVIDIA 40 GB 1,560 GB/s May 2020 34.4 GB Q5_K_M Tight
25.3 tok/s

15–40 · low confidence

A800 PCIe 40 GB NVIDIA 40 GB 1,560 GB/s Nov 2022 34.4 GB Q5_K_M Tight
25.2 tok/s

15–40 · low confidence

Tesla PG500-216 NVIDIA 32 GB 1,130 GB/s Nov 2019 26.2 GB IQ4_XS Tight

Speeds are estimates for a single request — one conversation at a time — calculated from memory bandwidth, model size and quantisation. Real throughput varies with the inference runtime and its version. Figures published by hardware vendors measure many simultaneous requests and are much higher.

On record

Full specification

Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.

Origin

Who built this model, where, and when it was published.

Organisation
Contextual AI,The University of Hong Kong,Microsoft
Organisation type
Industry,Academia,Industry
Country
United States of America, Hong Kong
Published
17 April 2024
Authors
Niklas Muennighoff, Hongjin Su, Liang Wang, Nan Yang, Furu Wei, Tao Yu, Amanpreet Singh, Douwe Kiela

What it does

The problem areas the model was built for. A model can carry several of each.

Domain
Language
Task
Language modeling/generation, Question answering, Quantitative reasoning
Base model
Mixtral 8x7B
Numerical format
BF16

Size

How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.

Parameters
46.7B

46.7B

Training data
tokens

"For GRITLM 8X7B, the embedding batch size is 256 due to compute limitations. "

Training compute

The arithmetic performed to train the model, measured in floating-point operations. It is a measure of what the training run cost, not of how fast the finished model answers you.

How it was established
Hardware
Fine-tuning compute
2.2 × 10²² FLOP

989500000000000 FLOP / GPU / sec * 20480 GPU-hours * 3600 sec / hour * 0.3 [assumed utilization] = 2.1886157e+22 FLOP

The training run

What it physically took to train: which chips, how many, for how long, and what that drew from the wall.

Training hardware
NVIDIA H100 SXM5 80GB
Chips used
8
Chip-hours
20,480
Wall-clock time
80 hours

"for GRITLM 8X7B, we used 32 nodes with 8 NVIDIA H100 80GB GPUs each for 80 hours corresponding to 20,480 GPU hours."

Power draw
11.1 kW

Availability

Whether you can obtain the model and run it on your own hardware, which is what decides if any of the graphics-card figures on this page apply.

Weights
Open — downloadable
Model access
Open weights (unrestricted)
Training code
Open source

MIT License https://github.com/ContextualAI/gritlm

How it is classified

Labels the source dataset applies when tracking notable models, and how confident it is in the entry.

Record confidence
Confident

Sources

Where this record came from and when it was last checked.

Reference
Generative Representational Instruction Tuning
Last updated
28 November 2025

The extremes

What the numbers mean

What you need to run it

Minimum card

Radeon PRO V710

Memory needed

23.5 GB

Fastest

72.6 tok/s

With 46.7B parameters, GRITLM 8x7B lands in the range a serious desktop card can handle once the weights are compressed. 93 of the cards we track can run it.

The least hardware that works is a Radeon PRO V710. Its 28 GB is enough at Q3_K_M compression, giving roughly 9.6 tokens per second.

At the other end, a B200 generates roughly 72.6 tokens per second on it, on the strength of 8,000 GB/s of memory bandwidth.

About this model

GRITLM 8x7B was published by Contextual AI,The University of Hong Kong,Microsoft, in United States of America, in April 2024. The organisation is categorised as industry,Academia,Industry.

It works in Language, and is recorded as doing language modeling/generation, Question answering, Quantitative reasoning.

It is derived from Mixtral 8x7B rather than trained from scratch, which is the usual way a specialised model is produced.

The weights being open is what puts this page in the calculator rather than only in the catalogue: it is a model you can actually hold.

How fast it runs, and why

Half the cards that hold it manage more than 18.3 tokens per second, and 74 exceed reading speed outright.

Every weight participates in every token here, so bandwidth is the whole story: the ranking below is effectively a ranking of memory throughput.

Memory here is estimated from size rather than computed from the architecture, which is not recorded for this model — the numbers are indicative rather than exact.

Step by step

How to choose a GPU for GRITLM 8x7B

The table above has already assessed every card we hold specifications for against this model. Getting to your answer takes six steps.

  1. 01

    Check what it needs before anything else

    Look at what GRITLM 8x7B actually needs — around 23.5 GB at Q3_K_M. No amount of processing power compensates for a card that cannot hold it.

  2. 02

    Decide how long your conversations run

    The conversation occupies memory too, and grows as it goes. Set the slider to the length you expect: at long context GRITLM 8x7B can slip off a card that handles short questions easily.

  3. 03

    Decide how much compression you will accept

    The quantisation column varies by card, because a bigger card holds a more accurate copy of GRITLM 8x7B — Q3_K_M on the smallest card that fits. Set a floor to hold the comparison at one level.

  4. 04

    Sort by speed

    Ranking by tokens per second for GRITLM 8x7B follows memory bandwidth, not core counts, which is why the B200 tops it at 72.6 tok/s.

  5. 05

    Read the fit column last

    Tight means GRITLM 8x7B loads and works, with no room to raise the context later. Comfortable means you can. The difference matters more than a few tokens per second.

  6. 06

    Open the card you have settled on

    Following a card through to its own page shows every other model it can hold, which is the question that follows once GRITLM 8x7B is settled.

Answers

GRITLM 8x7B — common questions

01

When was GRITLM 8x7B released?

GRITLM 8x7B was published in April 2024. Capability per parameter has improved considerably since, so a newer model of the same size is often the better use of the same hardware.

02

What is GRITLM 8x7B used for?

GRITLM 8x7B works in Language, and is recorded as handling language modeling/generation, Question answering, Quantitative reasoning. These are the areas it was designed around; they describe intent rather than a hard boundary.

03

Where can I download GRITLM 8x7B?

The weights for GRITLM 8x7B are published, though we do not hold a repository link for it. This site calculates hardware requirements rather than hosting model files.

04

Can I run GRITLM 8x7B if it does not fit in my GPU?

Only by offloading, which is usually a false economy: the part in system memory drags the whole thing down — the nearest miss we calculate is short by 7.4 GB. Our figures for GRITLM 8x7B assume it is fully resident.

05

Would two GPUs run GRITLM 8x7B faster?

Two cards buy memory rather than speed. That matters for GRITLM 8x7B only if one card cannot hold it — 93 can, so a second adds little.

06

Why does the quantisation differ between cards for GRITLM 8x7B?

A larger card holds a more accurate copy. Across the cards that run GRITLM 8x7B, 5 compression levels are used; the floor control above pins it to one.

07

How accurate are these GRITLM 8x7B speed estimates?

Every figure is derived from memory bandwidth and model size, not benchmarked. That is why each is published as a range such as 44–116 tok/s on the B200 rather than a single number.

08

What GPU do I need to run GRITLM 8x7B?

The smallest card in our catalogue that holds GRITLM 8x7B is the Radeon PRO V710, with 28 GB of memory. It runs the model at Q3_K_M using about 23.5 GB, and produces roughly 9.6 tokens per second. 93 cards in total can run it.

09

How fast is GRITLM 8x7B on a GPU?

It depends on the card. The quickest we calculate is a B200 at about 72.6 tokens per second; the slowest that still runs it manages considerably less. Reading speed is around ten tokens per second, and 74 of the cards that can run GRITLM 8x7B clear that.

10

How much VRAM does GRITLM 8x7B need?

About 23.5 GB at Q3_K_M compression, which is what the smallest card that runs it uses. Less compression needs more: the figures in the memory column above are recalculated for each card, because each one holds the least-compressed version it can.

11

Is GRITLM 8x7B open source?

Its weights are published, so GRITLM 8x7B can be downloaded and run on your own hardware. Note that open weights is not the same as open source in the full sense — it says nothing about the training data, the training code, or the commercial terms attached.

12

How many parameters does GRITLM 8x7B have?

GRITLM 8x7B has 46.7B parameters. 46.7B. That figure is the total, and it is what decides how much memory the model needs — roughly half a gigabyte per billion at the compression most people use.

13

Who created GRITLM 8x7B?

GRITLM 8x7B was published by Contextual AI,The University of Hong Kong,Microsoft, based in United States of America, categorised as industry,Academia,Industry.

Source

Original publication

Record last updated 28 November 2025

The other direction

Looking at it from the other side?

This page starts from the model. If you already own a card and want to know everything it will run, start from the hardware instead.